Self-Perceived Quality of Life (WHOQOL-Bref), and Self-Reported Health, Social and Environmental Factors Related to Its Improvement among Residents of Anil, Rio de Janeiro-Cross-Sectional Study.

This study aims to assess the self-perception of the QoL (WHOQOL-bref) in the Canal of Anil zone and its neighbor zone of the center of the District of Anil in Rio de Janeiro and to identify which factors are associated with the population self-perception of the need to "improve" their quality of life (QoL). A cross-sectional observational analytical study was carried out after approval by the competent ethics committee (CEP/CONEP) approval. A non-probabilistic sampling of residents of the Canal of Anil (n = 494) and the central district of Anil (n = 250) was used. A questionnaire was administered in person to collect data on self-reported sociodemographic characteristics, general health, sanitation, lifestyle in the residential area, and the WHOQOL-Bref. Although with a worse self-perceived water/sanitation participants in the Anil Canal community report fewer allergies, less medication, fewer skin diseases, less Zika virus, and less Chikungunya, among others. The self-perception of the need to improve the QoL in the Anil Canal community and the zone at the central District of Anil has proved to be influenced by several social and economic factors as well as residential practices and conditions. The multivariate analysis allowed us to identify both modifiable and non-modifiable risk factors for the need to improve physical QoL: taking medication, respiratory problems, skin disease diagnosed by a doctor, having a water tank at home or having filtered water at home, unpleasant odor of the water of the Anil Canal and the level of education, and age. Regarding the need to improve the environmental QoL, both areas are largely modifiable (e.g., having had ascariasis/roundworm; having a water tank in the house; not drinking bottled water; not having pavements in the street). Sociodemographic and environmental factors, in addition to health conditions, play a pivotal role in influencing individuals' perceptions of the necessity for enhanced physical and environmental well-being.