Table 1: Proportion of preterm and full-term births stratified by maternal sociodemographic characteristics and reproductive history - MEJC, Brazil, 2017.

Variable Premature

n (%)
Full-term

n (%)
p-value
Maternal Age 0.142
≤ 19 years 196 (20.1) 417 (17.5)
20 to 34 years 627 (64.2) 1543 (64.9)
≥ 25 years 153 (15.7) 417 (17.5)
Cohabits with Companion 0.964
Yes 228 (23.4) 557 (23.4)
No 748 (76.6) 1820 (76.6)
Maternal education 0.285
Adequate 172 (17.6) 383 (16.1)
Inadequate 804 (82.4) 1994 (83.9)
Race/color 0.567
White 93 (9.5) 242 (10.2)
Previous children 0.449
None 455 (46.6) 1065 (44.8)
1 to 2 422 (43.2) 1040 (43.8)
3 or more 99 (10.1) 272 (11.4)
Fetal loss/miscarriages 0.410
None 746 (76.4) 1859 (78.2)
1 to 2 214 (21.9) 474 (19.9)
3 or more 16 (1.6) 44 (1.9)
Previous vaginal births 0.006
None 597 (61.2) 1560 (65.6)
1 to 2 301 (30.8) 605 (25.5)
3 or more 78 (8.0) 212 (8.9)
Previous caesarian section < 0.001
None 784 (80.3) 1750 (73.6)
1 to 2 181 (18.5) 593 (24.9)
3 or more 11 (1.1) 34 (1.4)
Previous gestations 0.737
None 390 (40.0) 922 (38.8)
1 to 2 410 (42.0) 1033 (43.5)
3 or more 176 (18.0) 422 (17.8)