Abstract Background: Despite the criteria already established for the classification of knee osteoarthritis (OA), a radiographic and/or clinical knee OA diagnosis usually occurs in cases of fully manifest or more advanced disease, which can make health promotion, prevention, and functional rehabilitation in more advanced stages of the disease less effective. In addition, radiographic knee OA can generate more financial costs for health services. Therefore, developing and validating screening instruments to assess the probability of development and progression of knee OA would be of great value for both clinical practice and science. Objective: To cross-culturally adapt and investigate the measurement properties of the Knee OA Pre-screening Questionnaire Brazilian version. Methods: A total of 250 individuals of both sexes aged between 35 and 92 years [(mean (standard deviation): 63 (11) years old; 74.1 (15.1) kg; 1.59 (0.09) m; 29.38 (5.44) kg/m2] participated in this study. The cross-cultural adaptation and analyses of the measurement properties of the KOPS Brazilian version included: (1) assessment of conceptual and item equivalence; (2) assessment of semantic equivalence; (3) assessment of operational equivalence; and (4) assessment of measurement equivalence, reliability, and validity. Results: Cronbach's alpha for the internal consistency among the six components of the KOPS Brazilian version was 0.71. The test-retest 72 h apart for each component resulted in a coefficient correlation intraclass ranging from 0.74 to 1.00. The probability of an individual randomly chosen from the population having KL ≥ 1 and KOPS Brazilian version ≥ 21 points was 0.74 (area under the curve of the Receiver Operating Characteristic – AUC of ROC); furthermore, the AUC for KL ≥ 2 and the KOPS Brazilian version ≥ 23 points was 0.77. Conclusion: The KOPS Brazilian version is a reliable and valid instrument for early screening of knee OA in individuals aged 35 years and over in the Brazilian context.

Resumo A autogestão na saúde é compreendida como a habilidade para gerir recursos internos, externos, conhecimentos e motivações relacionados com uma condição clínica crónica. O presente estudo propõe a tradução e adaptação cultural para a população portuguesa, bem como as propriedades psicométricas, das escalas Communication with Physicians (CwP) e Cognitive Symptoms Management (CSM). Após constituída a versão final das escalas no idioma português europeu e adaptada culturalmente para a população adulta com doença crónica, as escalas foram aplicadas inicialmente a uma amostra de 30 participantes, tendo em vista a obtenção da fiabilidade teste reteste, e posteriormente a uma amostra de 217 participantes para avaliação das propriedades psicométricas. Os participantes tinham todos pelo menos uma doença crónica e idade superior a 18 anos. Os resultados demonstraram valores adequados para a fiabilidade teste reteste de 0,72 para a escala CwP e 0,84 para a escala CSM. Após Análise Fatorial Confirmatória (AFC), foram encontrados índices de ajustamento aceitáveis variando de 0,37 a 0,87. Os valores da fiabilidade compósita foram de 0,75 para a CwP e de 0,73 para a CSM. A variância extraída da média (VEM) dos contructos foi de 0,75 para a CwP e 0,32 para a CSM. O valor de CFI foi de 0,84 e o de GFI foi de 0,90. Os questionários foram traduzidos e adaptados culturalmente com sucesso. Os valores da AFC evidenciam a validade das escalas CwP e CSM para a população portuguesa com doença crónica.

Abstract Healh self-management is the ability to manage internal and external resources, knowledge and motivations related to a chronic clinical condition. The present study proposes the translation and cultural adaptation for the portuguese language, as well as the psychometric properties, of the Communication with Physicians (CwP) and Cognitive Symptoms Management (CSM) scales. After constituting the final version of the scales in the European Portuguese language and culturally adapted to the adult population with chronic disease, the scales were initially applied to a sample of 30 participants, in order to obtain the test-retest reliability, and later to a sample of 217 participants for evaluation of psychometric properties. Participants all had at least one chronic illness and were over 18 years old. The results showed adequate values for the test-retest reliability of 0.72 for the CwP scale and 0.84 for the CSM scale. After confirmatory factor analysis (CFA), acceptable adjustment indexes ranging from 0.37 to 0.87 were found. The composite reliability values were 0.75 for CwP and 0.73 for CSM. Contracts VEM was 0.75 for CwP and 0.32 for CSM. The CFI value was 0.84 and the GFI value was 0.90. The questionnaires were successfully translated and culturally adapted. The AFC values confirm the validity of the psychometric properties to be used in the portuguese population with chronic disease.

O objectivo do presente estudo foi investigar quais as estratégias de coping mais utilizadas por idosos com osteoartrose do joelho (OAJ) e se existem diferenças na utilização das estratégias isoladas, ou agrupadas em categorias, conforme as características sócio demográficas, o grau de severidade da osteoartrose, a dor e outros sintomas da OAJ. A amostra foi constituída por 73 indivíduos com 69±5.9 anos e diagnóstico clínico e radiológico de OAJ. Os instrumentos utilizados foram os questionários Knee Injury and Osteoarthritis Outcome Score (KOOS) e o Brief COPE. O tratamento estatístico dos dados foi feito com base na análise de variância multivariada (MANOVA). A ausência de resultados estatisticamente significativos indica que as estratégias de coping, isoladas ou agrupadas, não foram influenciadas pelas variáveis testadas. Assim, é possível concluir que enfrentar as adversidades da OAJ não depende do género, do nível académico, da severidade da patologia e do nível de percepção da dor. Os resultados podem contribuir para a elaboração de programas educacionais com o propósito de trabalhar as estratégias de coping em idosos com OAJ.

The aim of this study was to investigate coping strategies in elderly with knee osteoarthritis (KOA) and if there are any differences in the use of strategies, alone or grouped into categories, according to sociodemographic characteristics, the degree of severity of osteoarthritis, pain and other KOA symptoms. The sample consisted of 73 individuals with 69± 5.9 years old and with clinical and radiological diagnosis of KOA. The instruments were Knee Injury and Osteoarthritis Outcome Score (KOOS) and the Brief COPE questionnaires. The statistical analisys was based on multivariate analysis of variance (MANOVA). No significant statistical differences were founded, indicating that the coping strategies, alone or grouped, were not influenced by variables tested. Thus, we conclude that face to the adversities of OAJ regardless of gender, academic level, the KOA severity and the self- reported pain level. The findings may contribute to educational programs wich aims to develop coping strategies in older adults with KOA.