Pregnant migrant workers n = 208 (%) | Local pregnant women n = 210 (%) | p value | |
---|---|---|---|
Age (years) mean ± SD | 27.5 ± 4.9 | 26.2 ± 6.1 | 0.017*T |
BMI (kg/m2) mean ± SD | 22.2 ± 2.8 | 21.7 ± 4.0 | 0.188 T |
Smoking N (%) | 0 (0) | 2 (1.0) | |
Previous preterm birth N (%) | 3 (1.4) | 5 (2.4) | 0.724F |
Work status N (%) | |||
Housewife | 0 (0) | 74 (35.4) | |
Company employee | 0 (0) | 26 (12.4) | |
Government employee | 0 (0) | 13 (6.2) | |
Private business | 0 (0) | 13 (6.2) | |
Household assistant | 79 (38.0) | 0 (0) | |
Shop assistant | 48 (23.1) | 19 (9.0) | |
Contractor | 36 (17.3) | 54 (25.7) | |
Construction worker | 25 (12.0) | 3 (1.4) | |
Factory worker | 17 (8.2) | 8 (3.8) | |
Others | 3 (1.4) | 0 (0) | |
Monthly household income (Baht) Median (min–max) | 13,750 (5000–27,000) | 20,000 (5000–81,600) | < .001*M |
Gestational age at participation N (%) | < .001*C | ||
1st trimester | 58 (27.9) | 110 (51.6) | |
2nd trimester | 67 (32.2) | 76 (35.7) | |
3rd trimester | 83 (39.9) | 27 (12.7) |