Abstract Objective To estimate the prevalence of caregiver burden and identify associated factors among informal caregivers of elderly individuals with dementia. Method Cross-sectional and analytical study with a sample of caregivers of elderly individuals receiving care at a reference center for elderly health. Caregiver burden was assessed using the Zarit scale. Sociodemographic characteristics and factors related to the health and care of the elderly person were investigated. Data analysis was performed using Poisson regression with robust variance, based on a hierarchical model, with a significance level of 5%. Results A total of 436 caregivers participated in the study, the majority of whom were female (88.1%). The prevalence of caregiver burden was 32.8%. In the multiple model, the following factors were associated with a higher prevalence of caregiver burden: age between 40 and 59 years (PR=1.20; 95% CI=1.02-1.39), being in a marital relationship (PR=1.18; 95% CI=1.02-1.36), being a child or spouse of the elderly person (PR=1.16; 95% CI=1.01-1.33), having a negative self-perception of health (PR=1.30; 95% CI=1.10-1.52), using medication (PR=1.24; 95% CI=1.06-1.45), not practicing self-care measures (PR=1.49; 95% CI=1.17-1.89), providing support to the elderly person in family integration activities (PR=1.41; 95% CI=1.05-1.89), cultural activities (PR=1.36; 95% CI=1.08-1.72), and medication administration (PR=1.13; 95% CI=1.01-1.25). Conclusion The high prevalence of caregiver burden among caregivers of elderly individuals highlights the need for specific policies for this group and represents an aspect to be regularly evaluated by healthcare professionals who work directly with people with dementia and their families. Crosssectional Cross sectional scale investigated variance model 5 5% 43 88.1%. 881 88.1% . 88 1 (88.1%) 328 32 8 32.8% 4 PR=1.20 PR120 PR 20 (PR=1.20 95 CI=1.021.39, CI102139 CI CI=1.02 1.39 , 02 39 CI=1.02-1.39) PR=1.18 PR118 18 (PR=1.18 CI=1.021.36, CI102136 1.36 36 CI=1.02-1.36) PR=1.16 PR116 16 (PR=1.16 CI=1.011.33, CI101133 CI=1.01 1.33 01 33 CI=1.01-1.33) selfperception self perception PR=1.30 PR130 30 (PR=1.30 CI=1.101.52, CI110152 CI=1.10 1.52 10 52 CI=1.10-1.52) PR=1.24 PR124 24 (PR=1.24 CI=1.061.45, CI106145 CI=1.06 1.45 06 45 CI=1.06-1.45) selfcare PR=1.49 PR149 49 (PR=1.49 CI=1.171.89, CI117189 CI=1.17 1.89 17 89 CI=1.17-1.89) PR=1.41 PR141 41 (PR=1.41 CI=1.051.89, CI105189 CI=1.05 05 CI=1.05-1.89) PR=1.36 PR136 (PR=1.36 CI=1.081.72, CI108172 CI=1.08 1.72 08 72 CI=1.08-1.72) PR=1.13 PR113 13 (PR=1.13 CI=1.011.25. CI101125 1.25 25 CI=1.01-1.25) families 88.1 (88.1% 3 32.8 PR=1.2 PR12 2 (PR=1.2 9 021 CI=1.021.39 CI10213 CI102 CI=1.0 139 1.3 0 CI=1.02-1.39 PR=1.1 PR11 (PR=1.1 CI=1.021.36 136 CI=1.02-1.36 011 CI=1.011.33 CI10113 CI101 133 CI=1.01-1.33 PR=1.3 PR13 (PR=1.3 101 CI=1.101.52 CI11015 CI110 CI=1.1 152 1.5 CI=1.10-1.52 061 CI=1.061.45 CI10614 CI106 145 1.4 CI=1.06-1.45 PR=1.4 PR14 (PR=1.4 171 CI=1.171.89 CI11718 CI117 189 1.8 CI=1.17-1.89 051 CI=1.051.89 CI10518 CI105 CI=1.05-1.89 081 CI=1.081.72 CI10817 CI108 172 1.7 7 CI=1.08-1.72 CI=1.011.25 CI10112 125 1.2 CI=1.01-1.25 88. (88.1 32. PR=1. PR1 (PR=1. CI=1.021.3 CI1021 CI10 CI=1. 1. CI=1.02-1.3 CI=1.011.3 CI1011 CI=1.01-1.3 CI=1.101.5 CI1101 CI11 15 CI=1.10-1.5 CI=1.061.4 CI1061 14 CI=1.06-1.4 CI=1.171.8 CI1171 CI=1.17-1.8 CI=1.051.8 CI1051 CI=1.05-1.8 CI=1.081.7 CI1081 CI=1.08-1.7 CI=1.011.2 12 CI=1.01-1.2 (88. PR=1 (PR=1 CI=1.021. CI1 CI=1 CI=1.02-1. CI=1.011. CI=1.01-1. CI=1.101. CI=1.10-1. CI=1.061. CI=1.06-1. CI=1.171. CI=1.17-1. CI=1.051. CI=1.05-1. CI=1.081. CI=1.08-1. (88 PR= (PR= CI=1.021 CI= CI=1.02-1 CI=1.011 CI=1.01-1 CI=1.101 CI=1.10-1 CI=1.061 CI=1.06-1 CI=1.171 CI=1.17-1 CI=1.051 CI=1.05-1 CI=1.081 CI=1.08-1 (8 (PR CI=1.02- CI=1.01- CI=1.10- CI=1.06- CI=1.17- CI=1.05- CI=1.08- (

Resumo Objetivo estimar a prevalência de sobrecarga de trabalho, identificando fatores associados entre cuidadores informais de pessoas idosas com demência. Método Estudo transversal e analítico, com amostra de cuidadores de pessoas idosas assistidas em um centro de referência à saúde do idoso. A sobrecarga entre os cuidadores foi avaliada pela escala de Zarit. Foram investigadas características sociodemográficas e associadas às condições de saúde e de atenção à pessoa idosa. Para análise dos dados utilizou-se a regressão de Poisson com variância robusta, a partir de modelo hierarquizado, assumindo-se nível de significância de 5%. Resultados Participaram do estudo 436 cuidadores, sendo a maioria do sexo feminino (88,1%). A prevalência de sobrecarga entre os cuidadores foi de 32,8%. No modelo múltiplo, mostraram-se associados à maior prevalência de sobrecarga entre os cuidadores: idade de 40 a 59 anos (RP=1,20; IC95%=1,02-1,39), situação conjugal com companheiro (RP=1,18; IC95%=1,02-1,36), ser filho ou cônjuge da pessoa idosa (RP=1,16; IC95%=1,01-1,33), ter autopercepção negativa da saúde (RP=1,30; IC95%=1,10-1,52), fazer uso de medicamentos (RP=1,24; IC95%=1,06-1,45), não ter medidas de autocuidado (RP=1,49; IC95%=1,17-1,89), suporte à pessoa idosa nas atividades de integração familiar (RP=1,41; IC95%=1,05-1,89), nas atividades culturais (RP=1,36; IC95%=1,08-1,72) e na administração de medicamentos (RP=1,13; IC95%=1,01-1,25). Conclusão A elevada prevalência de sobrecarga entre os cuidadores de pessoas idosas alerta para a necessidade de políticas específicas para esse grupo e representa um aspecto a ser regularmente avaliado pelos profissionais de saúde que lidam diretamente com pessoas com demência e seus familiares. trabalho analítico idoso Zarit utilizouse utilizou se robusta hierarquizado assumindose assumindo 5 5% 43 88,1%. 881 88,1% . 88 1 (88,1%) 328 32 8 32,8% múltiplo mostraramse mostraram 4 RP=1,20 RP120 RP 20 (RP=1,20 IC95%=1,021,39, IC95102139 IC IC95%=1,02 1,39 , IC95 02 39 IC95%=1,02-1,39) RP=1,18 RP118 18 (RP=1,18 IC95%=1,021,36, IC95102136 1,36 36 IC95%=1,02-1,36) RP=1,16 RP116 16 (RP=1,16 IC95%=1,011,33, IC95101133 IC95%=1,01 1,33 01 33 IC95%=1,01-1,33) RP=1,30 RP130 30 (RP=1,30 IC95%=1,101,52, IC95110152 IC95%=1,10 1,52 10 52 IC95%=1,10-1,52) RP=1,24 RP124 24 (RP=1,24 IC95%=1,061,45, IC95106145 IC95%=1,06 1,45 06 45 IC95%=1,06-1,45) RP=1,49 RP149 49 (RP=1,49 IC95%=1,171,89, IC95117189 IC95%=1,17 1,89 17 89 IC95%=1,17-1,89) RP=1,41 RP141 41 (RP=1,41 IC95%=1,051,89, IC95105189 IC95%=1,05 05 IC95%=1,05-1,89) RP=1,36 RP136 (RP=1,36 IC95%=1,081,72 IC95108172 IC95%=1,08 1,72 08 72 IC95%=1,08-1,72 RP=1,13 RP113 13 (RP=1,13 IC95%=1,011,25. IC95101125 1,25 25 IC95%=1,01-1,25) familiares 88,1 (88,1% 3 32,8 RP=1,2 RP12 2 (RP=1,2 021 IC95%=1,021,39 IC9510213 IC95102 IC95%=1,0 139 1,3 IC9 0 IC95%=1,02-1,39 RP=1,1 RP11 (RP=1,1 IC95%=1,021,36 136 IC95%=1,02-1,36 011 IC95%=1,011,33 IC9510113 IC95101 133 IC95%=1,01-1,33 RP=1,3 RP13 (RP=1,3 101 IC95%=1,101,52 IC9511015 IC95110 IC95%=1,1 152 1,5 IC95%=1,10-1,52 061 IC95%=1,061,45 IC9510614 IC95106 145 1,4 IC95%=1,06-1,45 RP=1,4 RP14 (RP=1,4 171 IC95%=1,171,89 IC9511718 IC95117 189 1,8 IC95%=1,17-1,89 051 IC95%=1,051,89 IC9510518 IC95105 IC95%=1,05-1,89 081 IC95%=1,081,7 IC9510817 IC95108 172 1,7 7 IC95%=1,08-1,7 IC95%=1,011,25 IC9510112 125 1,2 IC95%=1,01-1,25 88, (88,1 32, RP=1, RP1 (RP=1, IC95%=1,021,3 IC951021 IC9510 IC95%=1, 1, IC95%=1,02-1,3 IC95%=1,011,3 IC951011 IC95%=1,01-1,3 IC95%=1,101,5 IC951101 IC9511 15 IC95%=1,10-1,5 IC95%=1,061,4 IC951061 14 IC95%=1,06-1,4 IC95%=1,171,8 IC951171 IC95%=1,17-1,8 IC95%=1,051,8 IC951051 IC95%=1,05-1,8 IC95%=1,081, IC951081 IC95%=1,08-1, IC95%=1,011,2 12 IC95%=1,01-1,2 (88, RP=1 (RP=1 IC95%=1,021, IC951 IC95%=1 IC95%=1,02-1, IC95%=1,011, IC95%=1,01-1, IC95%=1,101, IC95%=1,10-1, IC95%=1,061, IC95%=1,06-1, IC95%=1,171, IC95%=1,17-1, IC95%=1,051, IC95%=1,05-1, IC95%=1,081 IC95%=1,08-1 (88 RP= (RP= IC95%=1,021 IC95%= IC95%=1,02-1 IC95%=1,011 IC95%=1,01-1 IC95%=1,101 IC95%=1,10-1 IC95%=1,061 IC95%=1,06-1 IC95%=1,171 IC95%=1,17-1 IC95%=1,051 IC95%=1,05-1 IC95%=1,08- (8 (RP IC95% IC95%=1,02- IC95%=1,01- IC95%=1,10- IC95%=1,06- IC95%=1,17- IC95%=1,05- (