Table 1.
Sociodemographic and lifestyle characteristics according to sleep quality of adolescents, São Luís, Maranhão, Brazil, 2016.
| Variables | Good Sleep Quality | Poor Sleep Quality | Total | p-Value |
|---|---|---|---|---|
| % (n) | % (n) | % (n) | ||
| Age (years) | 0.037 | |||
| 18 | 44.2 (764) | 55.8 (963) | 69.1 (1727) | |
| 19 | 39.8 (307) | 60.2 (465) | 30.9 (772) | |
| Sex | <0.001 | |||
| Male | 48.9 (584) | 51.1 (609) | 47.7 (1193) | |
| Female | 37.3 (487) | 62.7 (819) | 52.3 (1306) | |
| Schooling | 0.030 | |||
| Elementary | 16.0 (4) | 84.0 (21) | 1.0 (25) | |
| Medium | 43.6 (730) | 56.4 (946) | 67.1 (1676) | |
| Technical/vocational course | 46.5 (60) | 53.5 (69) | 5.2 (129) | |
| College | 41.4 (277) | 58.6 (392) | 26.7 (669) | |
| Economic class 1,2 | 0.136 | |||
| A | 45.4 (78) | 54.6 (94) | 7.8 (172) | |
| B | 43.9 (473) | 56.1 (605) | 48.6 (1078) | |
| C | 39.9 (371) | 60.1 (559) | 42.0 (930) | |
| D/E | 52.8 (19) | 47.2 (17) | 1.6 (36) | |
| Separated/Divorced Parents | 0.262 | |||
| Yes | 43.9 (565) | 56.1 (721) | 51.5 (1286) | |
| No | 41.7 (506) | 58.3 (707) | 48.5 (1213) | |
| Screen time | 0.542 | |||
| ≤5 h per day | 42.4 (700) | 57.6 (950) | 66.0 (1650) | |
| >5 h per day | 43.7 (371) | 56.3 (478) | 34.0 (849) | |
| Frequency of coffee consumption | 0.654 | |||
| Daily | 43.2 (595) | 56.8 (782) | 55.1 (1377) | |
| Weekly | 41.1 (218) | 58.9 (313) | 21.3 (531) | |
| Monthly | 49.1 (26) | 50.9 (27) | 2.1 (53) | |
| Never | 43.1 (232) | 56.9 (306) | 21.5 (538) | |
| Amount of coffee consumed (cup/day) | 0.978 | |||
| <0.1 | 43.1 (232) | 56.9 (306) | 21.5 (538) | |
| 0.1 to 1.0 | 42.7 (561) | 57.3 (754) | 52.6 (1315) | |
| >1.0 | 43.0 (278) | 57.0 (368) | 25.9 (646) |
1 Economic class of 2216 adolescents. 2 Average family income per month in each economic class in 2016: A = US$ 5989, B = US$ 2021, C = US$ 1241, D/E = US$ 220.