Table 1 Sociodemographic characteristics of the study population.
From: Maternal Work and Spontaneous Preterm Birth: A Multicenter Observational Study in Brazil
Maternal characteristics | sPTB N (%) | Term birth N (%) | p-value |
|---|---|---|---|
Maternal age (years) | <0.001 | ||
≤ 19 | 399 (31.2) | 211 (18.6) | |
20–34 | 767 (59.9) | 800 (70.4) | |
≥ 35 | 114 (8.9) | 125 (11.0) | |
Skin colour/ethnicity | 0.273 | ||
White | 552 (43.1) | 447 (39.3) | |
Other | 728 (56.9) | 689 (60.7) | |
Marital status | 0.009 | ||
With a partner | 961 (75.1) | 912 (80.3) | |
Without a partner | 319 (24.9) | 224 (19.7) | |
Household (a) | 0.953 | ||
Urban | 1140 (89.6) | 1012 (89.5) | |
Rural | 133 (10.4) | 119 (10.5) | |
Schooling (years) (b) | 0.016 | ||
≤8 | 562 (44.6) | 419 (37.4) | |
9–12 | 628 (49.8) | 622 (55.5) | |
>12 | 71 (5.6) | 79 (7.1) | |
Paid work in pregnancy (c) | <0.001 | ||
No | 884 (69.4) | 684 (60.3) | |
Yes | 389 (30.6) | 451 (39.7) | |
Workload (daily) [n = ] (d) | 0.170 | ||
≤ 8 hours | 1097 (90.7) | 965 (88.4) | |
> 8 hours | 112 (9.3) | 127 (11.6) | |
Children under 5 years (e) | 0.069 | ||
No | 883 (69.0) | 814 (71.7) | |
Yes | 397 (31.0) | 321 (28.3) | |
Total | 1280 (100) | 1136 (100) |
