FACTORS ASSOCIATED WITH SLEEPING PATTERN, EXCESSIVE DAYTIME SLEEPINESS, AND OBESITY IN A POPULATION SAMPLE IN THE RURAL AREA OF CAICÓ-RN
Sleep Pattern, Obesity, Rural Area, Excessive Daytime Sleepiness, Social Jet Lag.
The sleep pattern expressed by individuals is an important health-related factor. There is evidence of urbanization promoting irregularity and sleep deprivation, related to the increase of excessive daytime sleepiness (EDS) and obesity in the world, although scarce literature describes such associations in rural populations. This study evaluated the sleep pattern, prevalence and levels of EDS, and self-reported obesity in a population sample from the rural area of Caicó-RN. Data collection was performed using the Sociodemographic and Munich Questionnaires, with the addition of questions to assess naps; Epworth Sleepiness Scale (ESS); weight, and height. 320 people were approached, of which 306 were elective for the study, distributed in nine communities/farms. There was a higher prevalence of individuals over 51 years old (40%), female (66%), with less than primary education (65.5%), with a partner (76.8%), with income of less than three minimum wages (91%) and who did not directly practice any rural activity (63.5%). Most respondents reported a sedentary lifestyle (58.4%), having three meals a day (59.4%), non-smokers (88.1%) and non-alcoholics (72.6%). Bed time and waking hours were brought forward (09:00 p.m. and 05:00 a.m., respectively), consistent with the predominance of morningness (34.4%) and intermediate (36.6%) chronotypes. In the first group, 92.4% reported sufficient sleep duration. The majority (73.8%) took naps, which lasted an average of one hour. There were no differences in the expression of the sleep pattern between weekdays and weekends, resulting in a low rate of social jet lag. There was an occurrence of EDS in 20% of the sample. Self-reported overweight was observed in 66.3% of the participants, with a significant association with age (p=0.002), marital status followed (p=0.003), at least one of the obese parents (p=0.01) and morningness chronotype (p=0.032). We did not verify the association between overweight and sleep deprivation. Based on the results, the sociodemographic profile was similar to that of frequent users of the health service in that area. Sleeping times may be related to geographic positioning, low urbanization, daytime demand for rural labor, prevention against thermal exposure and solar radiation. Napping may be related to early awakening, as well as expressing the nap habit. Thus, the study revealed that residents in the rural area of the semi-arid countryside of the state allocate the sleep episode in compliance with the environmental and sociocultural factors experienced, and have the habit of sleeping during the day ("the nap"), in order to provide enough sleep, which may be associated with a low prevalence of EDS. Overweight seems to be related to advanced age, to the female gender and morningness chronotype, not with sleep deprivation.