Abstract Introduction Functional endoscopic sinus surgery and endoscopic skull base surgery are frequently performed surgeries today. Nasal septal deviation is a common finding and can affect the surgical area. Therefore, it is important to examine the effect of this deviation on other anatomical structures. Objectıve The aim of the present study was to determine whether there is a relationship between the degree of nasal septal deviation and anterior skull base structures using computed tomography (CT). Methods A total of 312 patients (aged 18 to 65 years old) whose paranasal sinus CT images were available were included in the study. Measurements were obtained on images retrieved from Picture Archiving and Communication System (PACS) and Horos image archive systems in the bone window in the coronal and axial plane. Results The mean age of 312 patients was 33.00 years old (standard deviation [SD] 11.22 years). The presence of septal deviation was not associated with changes in olfactory fossa (OF) depths, Keros degrees, and the angle between the lateral lamella and the cribriform lamella. However, OF depths and Keros degrees on the deviated side of the septum were found to change at a significant level (p < 0.05). No significant association was observed between the degree of septal deviation and cribriform lamella-lateral lamella angle. Conclusion The study showed significantly increased OF depth and Keros degree on the deviated side of the nasal septum. Performing CT scans before endoscopic sinus surgery and endoscopic skull base surgery is important to increase the chances of a successful surgical outcome and to reduce complications. today area Therefore CT. . (CT) 31 aged 1 6 PACS (PACS plane 3300 33 00 33.0 standard SD [SD 1122 11 22 11.2 years. years) (OF However p 0.05. 005 0.05 0 05 0.05) lamellalateral complications (CT 3 330 33. 112 2 11. 0.0 0.

Abstract Introduction CyberKnife (CK) radiosurgery is a treatment strategy for vestibular schwannoma (VS). Objectives To evaluate hearing preservation (HP) after CK for VS. Data Synthesis The study was conducted following the Preferred Reporting Items for Systematic reviews and Meta-Analyses (PRISMA) statement, and it was registered at the International Prospective Register of Systematic Reviews (PROSPERO, under number CRD42021250300). The inclusion criteria were based on the population, intervention, comparison, outcome, timing and study design (PICOTS) strategy: population – patients with VS; intervention – CK; Comparison – none; Outcome – serviceable HP defined by Gardner and Robertson as grades I or II, or by the American Academy of Otolaryngology and Head and Neck Surgery as classes A or B; timing – mean follow-up longer than 1 year; and study design – retrospective or prospective studies. The exclusion criteria were: studies not published in English; studies published before January 2000 and after October 2021; and studies only including patients with neurofibromatosis type 2 or submitted to a previous treatment. The PubMed/MEDLINE, EMBASE, Web of Science, Cochrane Library, LILACS, and IBECS databases were used and last searched on October 27th, 2021. Statistical heterogeneity was assessed using I2 statistics. The appraisal checklist was used to assess the risk of bias in the included studies. A total of 222 studies were analyzed, and 13 were included in the synthesis, which represents 493 participants with serviceable hearing before intervention. The mean HP rate after CK using a random effects model was of 68% (95% confidence interval [95%CI]: 59–76%) at a mean follow-up of 42.96 months. Conclusion The longer follow-up period was associated with a lower HP rate after CK radiosurgery for VS in the qualitative synthesis. (CK . (VS) (HP MetaAnalyses Meta Analyses PRISMA (PRISMA statement PROSPERO, PROSPERO (PROSPERO CRD42021250300. CRD42021250300 CRD CRD42021250300) comparison outcome PICOTS (PICOTS none II B followup follow up year English 200 2021 PubMedMEDLINE PubMed MEDLINE PubMed/MEDLINE EMBASE Science Library LILACS 27th th statistics 22 analyzed synthesis 49 68 95% 95 (95 95%CI 95CI CI [95%CI] 59–76% 5976 59 76 4296 42 96 42.9 months (VS CRD4202125030 20 202 4 6 9 (9 [95%CI 59–76 597 5 7 429 42. CRD420212503 ( 59–7 CRD42021250 59– CRD4202125 CRD420212 CRD42021 CRD4202 CRD420 CRD42 CRD4

Abstract Introduction Spinocerebellar ataxias (SCAs) are a heterogeneous group of neurodegenerative diseases. Objective To evaluate the living standard of patients with SCA, by applying the Vestibular Disorders Activities of Daily Living Scale (VADL) and Activitiesspecific Balance Confidence Scale (ABC) questionnaires. Methods An uncontrolled clinical trial study was conducted with 28 patients who underwent anamnesis, ENT evaluation, and vestibular assessment and the application of questionnaires VADL and ABC before and after rehabilitation with virtual reality. Results The vestibular exam was altered in 64.3% of the cases. The result between the correlation of the VADL and ABC questionnaires showed significant results in all cases (p < 0.005). The correlation between the ages and disease length with the VADL and ABC questionnaires was significant in the T3 assessment (p = 0.015). The correlation between the disease length and the VADL questionnaire was significant in all cases (p < 0.005). The comparison of the vestibular rehabilitation result (T1 to T2) showed a significant difference for all the applied games, except for the ski slalom. The comparison of the vestibular rehabilitation result (T1 to T3) showed significant difference for all the applied games (p < 0.005) (1st assessment before the start of rehabilitation designated T1, after 10 rehabilitation sessions, considered T2 and, at the end of 20 rehabilitation sessions, called T3). Conclusion We can point out a direct improvement in the living standard, reflected by the reduction of falls, better balance, and march, contributing to a higher self-confidence in patients in daily activities. SCAs (SCAs diseases SCA (VADL (ABC 2 anamnesis evaluation reality 643 64 3 64.3 p 0.005. 0005 0.005 . 0 005 T 0.015. 0015 0.015 015 0.015) T1 (T slalom 1st st 1 sessions T3. falls balance march selfconfidence self confidence activities 6 64. 000 0.00 00 001 0.01 01 0.0 0.

Abstract Introduction When cases of idiopathic sudden sensorineural hearing loss (SSNHL) are treated successfully, most clinicians assume the normality and symmetry of the auditory processing. This assumption is based on the recovery of the detection ability on the part of the patients, but the auditory processing involves much more than detection alone. Since certain studies have suggested a possible involvement of the central auditory system during the acute phase of sudden hearing loss, the present study hypothesized that auditory processing would be asymmetric in people who have experienced sudden hearing loss. Objective To assess the physiologic and electrophysiological conditions of the cochlea and central auditory system, as well as behavioral discrimination, of three primary aspects of sound (intensity, frequency, and time) in subjects with normal ears and ears treated successfully for SSNHL. Methods The study included 19 SSNHL patients whose normal and treated ears were assessed for otoacoustic emissions, speech auditory brainstem response, intensity and pitch discrimination, and temporal resolution in a within-subject design. Results The otoacoustic emissions were poorer in the treated ears compared to the normal ears. Ear- and sex-dependent differences were observed regarding otoacoustic emissions and pitch discrimination. Conclusion The asymmetrical processing observed in the present study was not consistent with the hearing threshold values, which might suggest that the central auditory system would be affected regardless of the status of the peripheral hearing. Further experiments with larger samples, different recovery scenarios after treatment, and other assessments are required. (SSNHL alone discrimination intensity, (intensity frequency time 1 response withinsubject within subject design Ear sexdependent sex dependent values samples treatment required

Abstract Introduction The prevalence of otitis media (OM) is substantial all over the world. Epidemiological data related to the economic burden of OM globally is minimal. The present systematic review was undertaken to estimate the economic burden of this disease in various parts of the world. Objectives An extensive literature search was done using PRISMA guidelines to identify relevant studies that estimated the economic burden of OM in monetary terms. The databases searched were PubMed Central, Ovid, and Embase. The cost estimation was done for one specific year and then compared considering the inflation rate. Data Synthesis The literature search led to the inclusion of 10 studies. The studies evaluated direct and indirect costs in monetary terms. Direct costs (health system and patient perspective) ranged from USD (United States Dollar) 122.64 (Netherlands) to USD 633.6 (USA) per episode of OM. Looking at only the patient perspective, the costs ranged from USD 19.32 (Oman) to USD 80.5 (Saudi Arabia). The total costs (direct and indirect) ranged from USD 232.7 to USD 977 (UK) per episode of OM. The economic burden per year was highest in the USA (USD 5 billion). The incidence of OM episodes was found more in children < 5 years old. Introduction of pneumococcal conjugate vaccines decreased the incidence in children and now the prevalence in adults is of concern. Conclusion The economic burden of OM is relatively high globally and addressing this public health burden is important. Approaches for the prevention, diagnosis, and treatment should be undertaken by the health system to alleviate this disease burden. (OM world minimal terms Central Ovid Embase rate 1 perspective United Dollar 12264 122 64 122.6 Netherlands (Netherlands 6336 633 6 633. (USA 1932 19 32 19.3 Oman (Oman 805 80 80. Saudi Arabia. Arabia . Arabia) 2327 232 7 232. 97 UK (UK billion. billion billion) old concern important prevention diagnosis 1226 12 122. 63 193 3 19. 8 23 9 2

Abstract Introduction Adenoidectomy is one of the most common procedures performed by otolaryngologists. Traditional adenoid curettage is performed blindly, which can result in inadequate removal of the adenoid and injury to the surrounding structures. Objective To perform transnasal endoscopic examinations to assess the nasopharynx after conventional curettage adenoidectomy. Methods The present prospective study included 100 children with a mean age of 4.2 ± 3.07 years. It is composed of two steps: conventional curettage adenoidectomy by a resident trainee; and endoscopic evaluation of the nasopharynx through a 0° telescope to assess adenoidal remnants, injury to the surgical field or adjacent structures, and bleeding points. Results Adenoid remnants were observed in 42% of the cases after conventional adenoid curettage in multiple locations, such as the roof of the nasopharynx over the choana (24%), the tubal tonsil (12%), the posterior pharyngeal wall (4%), and the posterior end of the nasal septum (2%). Injury to the surgical field and adjacent structures was observed in 46% of the cases (posterior pharyngeal wall: 23%; lateral pharyngeal wall: 11%; Passavant ridge: 10%; and the Eustachian tube orifice: 2%). Endoscopic bleeding was observed in 29% of the cases; 13% of the cases were from adenoid remnants, 10%, from the mucosa, and 6%, from the pharyngeal muscles. Bleeding was mild in 19% of the cases, moderate in 9%, and severe in 1%. Conclusion Endoscopic evaluation of the nasopharynx following conventional adenoid curettage provides important data regarding adenoid remnants, injury to the surgical field or nearby structures, and bleeding points, which aids in the provision of optimal care and in the achievement of a better outcome. otolaryngologists blindly 10 42 4 2 4. 307 3 07 3.0 years steps trainee 0 points locations 24%, 24 24% , (24%) 12%, 12 12% (12%) 4%, 4% (4%) 2%. 2% . (2%) 46 23% 23 11% 11 ridge 10% orifice 2%) 29 13 mucosa 6 6% muscles 19 9 9% 1 1% outcome 30 3. (24% (12% (4% (2% (24 (12 (4 (2 (1 (

Abstract Introduction The limited access to temporal fine structure (TFS) cues is a reason for reduced speech-in-noise recognition in cochlear implant (CI) users. The CI signal processing schemes like electroacoustic stimulation (EAS) and fine structure processing (FSP) encode TFS in the low frequency whereas theoretical strategies such as frequency amplitude modulation encoder (FAME) encode TFS in all the bands. Objective The present study compared the effect of simulated CI signal processing schemes that either encode no TFS, TFS information in all bands, or TFS only in low-frequency bands on concurrent vowel identification (CVI) and Zebra speech perception (ZSP). Methods Temporal fine structure information was systematically manipulated using a 30-band sine-wave (SV) vocoder. The TFS was either absent (SV) or presented in all the bands as frequency modulations simulating the FAME algorithm or only in bands below 525 Hz to simulate EAS. Concurrent vowel identification and ZSP were measured under each condition in 15 adults with normal hearing. Results The CVI scores did not differ between the 3 schemes (F (2, 28) = 0.62, p = 0.55, η2p = 0.04). The effect of encoding TFS was observed for ZSP (F (2, 28) = 5.73, p = 0.008, η2p = 0.29). Perception of Zebra speech was significantly better with EAS and FAME than with SV. There was no significant difference in ZSP scores obtained with EAS and FAME (p = 1.00) Conclusion For ZSP, the TFS cues from FAME and EAS resulted in equivalent improvements in performance compared to the SV scheme. The presence or absence of TFS did not affect the CVI scores. (TFS speechinnoise noise (CI users (EAS FSP (FSP (FAME lowfrequency (CVI ZSP. . (ZSP) 30band band 30 sinewave sine wave (SV vocoder 52 1 hearing F 2, 2 (2 28 062 0 62 0.62 055 55 0.55 ηp η 0.04. 004 0.04 04 0.04) 573 5 73 5.73 0008 008 0.008 0.29. 029 0.29 29 0.29) 1.00 100 00 scheme (ZSP ( 06 6 0.6 05 0.5 0.0 57 7 5.7 000 0.00 02 0.2 1.0 10 0. 5. 1.

Abstract Introduction The World Health Organization (WHO) estimates that ~ 32 million children worldwide are affected by hearing loss (HL). Cochlear implant is the first-line treatment for severe to profound sensorineural HL. It is considered one of the most successful prostheses developed to date. Objective To evaluate the oral language development of pediatric patients with prelingual deafness implanted in a reference hospital for the treatment of HL in southern Brazil. Methods We conducted a retrospective cohort study with a review of medical records of patients undergoing cochlear implant surgery between January 2009 and December 2018. Language development was assessed by reviewing consultations with speech therapy professionals from the cochlear implant group. Results A total of 152 children were included in the study. The mean age at cochlear implant surgery was of 41 months (standard deviation [SD]: ± 15). The patients were divided into six groups considering the type of language most used in their daily lives. We found that 36% of children use oral language as their primary form of communication. In a subanalysis, we observed that patients with developed or developing oral language had undergone cochlear implant surgery earlier than patients using Brazilian Sign Language (Língua Brasileira de Sinais, LIBRAS, in Portuguese) or those without developed language. Conclusion The cochlear implant is a state-of-the-art technology that enables the re-establishment of the sense of hearing and the development of oral language. However, language development is a complex process known to present a critical period to properly occur. We still see many patients receiving late diagnosis and treatment, which implies a delay and, often, the impossibility of developing oral communication. Level of Evidence Level 3 (cohort study). WHO (WHO . (HL) firstline first line date Brazil 200 2018 group 15 4 standard SD [SD] 15. 15) lives 36 communication subanalysis Língua Sinais LIBRAS Portuguese stateoftheart state art reestablishment re establishment However occur often study) (HL 20 201 1 [SD 2

Abstract Introduction The optimal time for tracheostomy changes is unknown. Most surgeons opt to wait until five to seven days postoperatively, while more recent studies suggest that changes occurring as early as two to three days postoperatively are also safe. Objective To evaluate the safety of changing the tracheostomy tube later than 14 days postoperatively. Methods The charts of patients who underwent tracheostomy placement and change at a tertiary care center from 2015 to 2019 were retrospectively reviewed, and the subjects were divided into 2 cohorts (late and very late), depending on the time of the first tracheostomy change. Results The study included 198 patients, 53 of whom aged between 0 and 18 years, and 145, aged > 18 years. The time until the first tracheostomy change was on average of 131.1 days. The most common indication for tracheostomy tube placement was prolonged intubation. Adverse events were observed in 30.8% of the cases (the most common being the formation of granulation tissue), a rate that does not differ much from the incidence reported in the literature (of 34% to 77%) when tracheostomy tubes are changed as early as 3 to 7 days postoperatively. There was no significant difference in the incidence of complications between patients undergoing late and very late changes (p = 0.688), or between pediatric and adult subjects (p = 0.36). There were no significant correlations regarding the time of the first or second change and the incidence of complications (r = −0.014; p = 0.84 for the first change; and r = −0.57; p = 0.64 for the second change). Conclusion The late first tracheostomy tube change was safe and could save resources and decrease the financial burden of frequent changes. It is always crucial to provide adequate information about home tracheostomy care for patients. unknown 1 201 reviewed late, , late) 19 5 years 145 1311 131 131. intubation 308 30 8 30.8 tissue, tissue tissue) 34 77% 77 0.688, 0688 0.688 688 0.688) 0.36. 036 0.36 . 36 0.36) −0.014 0014 014 084 84 0.8 −0.57 057 57 064 64 0.6 change) 20 13 30. 068 0.68 68 03 0.3 −0.01 001 01 08 0. −0.5 05 06 6 −0.0 00 −0. −0 −

Abstract Introduction Submandibular gland fistula (SGF) is a rare subset of salivary gland fistulas. It is seldom tough to diagnose them prior to surgical exploration, and it is often clinically confused with close differentials. An early diagnosis based on pertinent clinical features and focused radiological findings can be pivotal in optimal management and help prevent recurrence and avoid unnecessary investigations/interventions. Objective To review articles that discuss SGF and provide vital etiological, clinical, and imaging features of this rare entity that can aid in early clinical diagnosis. Data Synthesis An extensive review involving PubMed and Google Scholar and reported in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) standards. Conclusion Submandibular gland fistula is a rare entity. It can be confused with close differentials, including branchial fistulas, if not thoroughly examined. Discharge from fistulae along with submandibular pain/tenderness and/or swelling are important diagnostic clues. A history of trauma, nodule at the site of discharge, prior submandibular disease/calculi, or discharge aggravated with food further increases a clinical suspicion. Optimal radiological investigation looking for calculi/foreign body and delineating the fistula tract is vital to affirm a diagnosis. Gland with fistula excision is a commonly advocated treatment of choice with no reports of recurrence, although conservative management and gland preserving surgery have also reported a favorable prognosis. (SGF fistulas exploration differentials investigationsinterventions investigations interventions investigations/interventions etiological MetaAnalyses Meta Analyses PRISMA (PRISMA standards examined paintenderness pain tenderness andor clues trauma diseasecalculi disease calculi disease/calculi suspicion calculiforeign foreign prognosis

Abstract Introduction Aural polyps are a misnomer. Any lesion can present as a mass in the external auditory canal. Aural polyps are proliferation of the granulation tissue due to long standing inflammatory process with associated otalgia and otorrhea. Objectives To document the clinicoradiological presentations, intraoperative findings, and histopathological diagnosis of aural polyp, correlating them. Methods In our study 81 patients underwent treatment for aural polyps in the department of Ear, Nose, and Throat (ENT) from April 1997 to April 2022. Results were tabulated, a simple descriptive analysis was done using the Statistical Package Social Sciences software, and the results obtained were represented as percentages and presented in tables. Results The majority (38) of the patients presenting with aural polyps were diagnosed with mucosal and squamous type of CSOM, and 22 with simple granulation polyps. There were also 5 patients with malignant otitis externa, 3 patients had glomus tumors, 2 patients with retained foreign bodies, and 3 patients with brain herniation. We also identified aberrant internal carotid artery, high jugular bulb, one patient had facial nerve neuroma, one patient had polyp from the tragus diagnosed with tuberculosis, one patient with keratosis obturans, and one with exostosis. Conclusion A thorough detailed examination and mastoid exploration with radiological and histopathological evaluation is mandatory for better defining the definitive treatment. Utmost care and meticulousness are advised for the surgeons while dealing with aural polyps to avoid any complications. misnomer canal otorrhea presentations findings them 8 Ear Nose ENT (ENT 199 2022 tabulated software tables 38 (38 CSOM externa tumors bodies herniation artery bulb neuroma tuberculosis obturans exostosis complications 19 202 (3 1 20 (

Abstract Introduction Permanent education in health aims to ensure that professionals are constantly learning in the workplace and in the last few years institutions resorted to the technology-mediated education modality and new teaching possibilities were explored. In Brazil, between 2017 and 2021, only six articles and five monographs were published about listening effort. Objective The objective of this study was to develop a website with scientific content on the topic listening effort for Speech -Language Therapist and Audiologist with free online access. Methods The study was carried out in five stages: Analysis, contemplating the search for scientific materials to prepare the material. Design, in which the writing and design of the website was carried out. Development, carrying out the adequacy of the online material. Implementation, a stage in which professionals in the area evaluated the quality of the material after consenting to participation through a free and informed consent term. Review, stage in which the researcher analyzed the evaluators' responses. Results The five stages of elaboration of the website were carried out, which was evaluated by professionals in the area. The average of responses to all applied questions rated the website as "superior". Conclusion The website development was validated for online availability. technologymediated technology mediated explored Brazil 201 2021 Language access Analysis Design Development Implementation term Review evaluators superior. superior . "superior" availability 20 202 "superior 2

Abstract Introduction In clinical practice, patients with the same degree and configuration of hearing loss, or even with normal audiometric thresholds, present substantially different performances in terms of speech perception. This probably happens because other factors, in addition to auditory sensitivity, interfere with speech perception. Thus, studies are needed to investigate the performance of listeners in unfavorable listening conditions to identify the processes that interfere in the speech perception of these subjects. Objective To verify the influence of age, temporal processing, and working memory on speech recognition in noise. Methods Thirty-eight adult and elderly individuals with normal hearing thresholds participated in the study. Participants were divided into two groups: The adult group (G1), composed of 10 individuals aged 21 to 33 years, and the elderly group (G2), with 28 participants aged 60 to 81 years. They underwent audiological assessment with the Portuguese Sentence List Test, Gaps-in-Noise test, Digit Span Memory test, Running Span Task, Corsi Block-Tapping test, and Visual Pattern test. Results The Running Span Task score proved to be a statistically significant predictor of the listening-in-noise variable. This result showed that the difference in performance between groups G1 and G2 in relation to listening in noise is due not only to aging, but also to changes in working memory. Conclusion The study showed that working memory is a predictor of listening performance in noise in individuals with normal hearing, and that this task can provide important information for investigation in individuals who have difficulty hearing in unfavorable environments. practice loss factors sensitivity Thus subjects age processing Thirtyeight Thirty eight G1, G , (G1) 1 2 3 years G2, (G2) 6 8 Test GapsinNoise Gaps Noise test BlockTapping Block Tapping listeninginnoise variable aging environments (G1 (G2 (G

Abstract Introduction Juvenile nasopharyngeal angiofibroma (JNA) is a benign vascularized tumor that affects almost exclusively male adolescents. Surgery is the treatment of choice for JNA. Objectives The present study is a 42-year retrospective review of a series of JNA cases treated surgically without previous embolization. Methods The present is a retrospective, descriptive study based on medical records of 96 patients with JNA who underwent microscopic or endoscopic excision without previous embolization from 1978 to 2020 in a single institution. The patients were categorized according to the Andrews et al. stage, and data were collected on age, gender, tumor staging, surgical approach, affected side, and outcome. Results All patients were male, with an average age of 17 years. The predominant tumor stage consisted of type II, with 52.1%. A total of 33.3% of the patients were submitted to the microscopic technique and 66.7%, to the endonasal technique. The rate of intraoperative blood transfusion was of 17.7%. Conclusion The present study reinforces that resection of JNA in various stages is viable without previous artery embolization. (JNA adolescents 42year year 42 9 197 202 institution al gender staging approach side outcome 1 years II 521 52 52.1% 333 33 3 33.3 667 66 7 66.7% 177 17.7% 4 19 20 5 52.1 33. 6 66.7 17.7 2 52. 66. 17.

Abstract Introduction Benign paroxysmal positional vertigo (BPPV) is the peripheral vestibular dysfunction that most affects people worldwide, but its etiopathogenesis is still not fully understood. Considering the etiological diversity, some studies highlight the association between BPPV and thyroid diseases. Objective To investigate the association between thyroid diseases and BPPV. Data Synthesis Systematic review and meta-analysis of epidemiological studies searched in the PubMed, Web of Science, Embase, Cochrane Library, and Scopus databases. Studies that were fully available and investigated the association between BPPV and thyroid diseases were selected. The articles that composed the meta-analysis were analyzed using the dichotomous model, the Mantel-Haenszel statistical test, odds ratio (OR), and a 95% confidence interval (CI). Of the 67 articles retrieved from the databases, 7 met the eligibility criteria of the systematic review, and 4 had data necessary to perform the meta-analysis. Qualitative analysis revealed that the studies were conducted in the European and Asian continents. The predominant methodological design was the case-control type, and thyroid dysfunctions, hypothyroidism, and Hashimoto thyroiditis occurred more frequently. The meta-analysis showed no association between hypothyroidism and BPPV; however, there was a statistically significant relationship between Hashimoto thyroiditis and BPPV. Conclusion The meta-analysis results suggest a possible association between BPPV and Hashimoto thyroiditis. Nevertheless, we emphasize the need for further studies to elucidate the evidence obtained. (BPPV worldwide understood diversity metaanalysis meta PubMed Science Embase Library databases selected model MantelHaenszel Mantel Haenszel test OR, OR , (OR) 95 CI. CI . (CI) 6 metaanalysis. analysis. continents casecontrol case control type dysfunctions frequently however Nevertheless obtained (OR 9 (CI