Increasing trends of sleep complaints in the city of São Paulo, Brazil

Increasing trends of sleep complaints in the city of São Paulo, Brazil

Author Santos-Silva, Rogerio Autor UNIFESP Google Scholar
Azeredo Bittencourt, Lia Rita Autor UNIFESP Google Scholar
Pires, Maria Laura Nogueira Autor UNIFESP Google Scholar
Mello, Marco Tulio de Autor UNIFESP Google Scholar
Taddei, Jose Augusto Autor UNIFESP Google Scholar
Benedito-Silva, Ana Amelia Google Scholar
Pompeia, Celine Autor UNIFESP Google Scholar
Tufik, Sergio Autor UNIFESP Google Scholar
Institution Universidade Federal de São Paulo (UNIFESP)
Univ Estadual Paulista Julio de Mesquita Fillho U
Universidade de São Paulo (USP)
Abstract Objective: the aim of this study was to compare the prevalence of sleep habits and complaints and to estimate the secular trends through three population-based surveys carried out in 1987, 1995, and 2007 in the general adult population of the city of São Paulo, Brazil.Methods: Surveys were performed using the same three-stage cluster-sampling technique in three consecutive decades to obtain representative samples of the inhabitants of São Paulo with respect to gender, age (20-80 years), and socio-economic status. Sample sizes were 1000 volunteers in 1987 and 1995 surveys and 1101 in a 2007 survey. in each survey, the UNIFESP Sleep Questionnaire was administered face-to-face in each household selected.Results: for 1987, 1995, and 2007, respectively, difficulty initiating sleep (weighted frequency %; 95% CI) [(13.9; 11.9-16.2), (19.15; 16.8-21.6), and (25.0; 22.5-27.8)], difficulty maintaining sleep [(15.8; 13.7-18.2), (27.6; 24.9-30.4), and (36.5; 33.5-39.5)], and early morning awakening [(10.6; 8.8-12.7), (14.2; 12.2-16.5), and (26.7; 24-29.6)] increased in the general population over time, mostly in women. Habitual snoring was the most commonly reported complaint across decades and was more prevalent in men. There was no statistically significant difference in snoring complaints between 1987 (21.5; 19.1-24.2) and 1995 (19.0; 16.7-21.6), but a significant increase was noted in 2007 (41.7; 38.6-44.8). Nightmares, bruxism, leg cramps, and somnambulism complaints were significantly higher in 2007 compared to 1987 and 1995. All were more frequent in women.Conclusions: This is the first study comparing sleep complaints in probabilistic population-based samples from the same metropolitan area, using the same methodology across three consecutive decades. Clear trends of increasing sleep complaints were observed, which increased faster between 1995 and 2007 than from 1987 to 1995. These secular trends should be considered a relevant public health issue and support the need for development of health care and educational strategies to supply the population's increased need for information on sleep disorders and their consequences. (C) 2010 Elsevier B.V. All rights reserved.
Keywords Sleep complaints
Sleep habits
Diurnal sleepiness
Sleep disorders
Language English
Sponsor Associacao Fundo de Incentivo a Psicofarmacologia (AFIP)
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
Grant number FAPESP: 07/50525-1
CEPID: 98/14303-3
Date 2010-06-01
Published in Sleep Medicine. Amsterdam: Elsevier B.V., v. 11, n. 6, p. 520-524, 2010.
ISSN 1389-9457 (Sherpa/Romeo, impact factor)
Publisher Elsevier B.V.
Extent 520-524
Access rights Closed access
Type Article
Web of Science ID WOS:000279424800004

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