Table 2. Demographic characteristic of the pregnant women in the study population.
| Characteristic | Group | Women without sleep disorder n (%) | Women with sleep disorder n (%) |
|---|---|---|---|
| Age (years) | 18–24 | 39 (38.4) | 57 (47.9) |
| 25–29 | 38 (33.9) | 30 (25.2) | |
| 30–34 | 28 (25) | 29 (24.4) | |
| 35–45 | 7 (6.3) | 3 (2.5) | |
| Body mass index (kg/m2) | < 19.8 | 6 (2.6) | 15 (6.6) |
| 19.9–25 | 44 (19.3) | 51 (22.4) | |
| 25.1–28 | 24 (10.5) | 25 (11) | |
| >28.1 | 36 (15.8) | 27 (11.8) | |
| Education | Initial | 27 (24.1) | 21 (17.6) |
| Guidance school | 17 (15.2) | 21 (17.6) | |
| High school | 47 (42) | 57 (47.9) | |
| University | 21 (18.8) | 20 (16.8) | |
| Partner's education | Initial | 26 (23.2) | 25 (21.2) |
| Guidance school | 23 (20.5) | 24 (20.3) | |
| High school | 43 (38.4) | 46 (39) | |
| University | 20 (17.9) | 23 (19.5) | |
| Employment status | Housewife | 117 (98.3) | 104 (92.9) |
| Working | 2 (1.7) | 8 (7.1) | |
| Partner's job | Employee | 20 (16.9) | 24 (21.4) |
| Padrone | 0 (0) | 1 (0.9) | |
| Worker | 19 (16.1) | 20 (17.9) | |
| Open work | 78 (66.1) | 65 (58) | |
| No work | 1 (0.8) | 2 (1.8) | |
| Marital length (years) | <5 | 56 (50.5) | 63 (53.4) |
| 6–9 | 28 (25.2) | 27 (22.9) | |
| 10–13 | 13 (11.7) | 14 (11.9) | |
| > 14 | 14 (12.6) | 14 (11.9) | |
| Parity | 1 | 59 (50.5) | 71 (60.2) |
| 2 | 36 (32.1) | 25 (21.2) | |
| 3 | 13 (11.6) | 15 (12.7) | |
| 4 | 1 (0.9) | 4 (3.4) | |
| >5 | 3 (2.7) | 3 (2.5) | |
| Gestational age at the | 28 | 41 (36.6) | 46 (39) |
| first assessment (weeks) | 29 | 11 (9.8) | 14 (11.9) |
| 30 | 13 (11.6) | 9 (6.7) | |
| 31 | 19 (17) | 9 (6.7) | |
| 32 | 28 (25) | 40 (33.9) | |
| Present weight (kg) | 45–50 | 0 (0) | 5 (4.2) |
| 51–60 | 11 (9.9) | 14 (11.9) | |
| 61–70 | 40 (36) | 43 (36.4) | |
| 71–80 | 28 (25.2) | 30 (25.4) | |
| 81–90 | 26 (23.4) | 13 (11) | |
| >90 | 6 (5.4) | 13 (11) | |
| Caffeine use | No | 96 (85.7) | 105 (88.2) |
| Yes | 16 (14.3) | 14 (11.8) |