Table 1 Characteristics of participants by each occupational field in survey study (N = 9725)
|  | Unemployed (n = 3910) | Agriculture related (n = 1937) | Industry related (n = 237) | Business and white collar (n = 3641) | Total (n = 9725) |
|---|---|---|---|---|---|
Maternal age, year (SD) | 28.59 (4.98) | 27.57 (5.51) | 29.58 (4.02) | 30.53 (4.69) | 29.15 (5.11) |
Pre-pregnancy BMI, Kg/m2 (SD) | 22.38 (9.07) | 22.38 (5.13) | 22.91 (4.38) | 22.04 (6.91) | 22.26 (7.37) |
Gestational age, week (SD) | 38.99 (1.43) | 39.15 (1.37) | 38.92 (1.26) | 38.93 (1.45) | 38.99 (1.41) |
Infant birthweight, kg (SD) | 3.42 (0.59) | 3.27 (0.56) | 3.34 (0.50) | 3.42 (0.77) | 3.36 (0.66) |
Infant age, month (SD) | 5.39 (3.44) | 5.65 (3.41) | 5.34 (3.37) | 5.26 (3.42) | 5.38 (3.44) |
Infant sex, n (%) | |||||
 Male | 2023 (51.74) | 985 (50.85) | 109 (45.99) | 1808 (49.66) | 4925 (50.64) |
 Female | 1887 (48.26) | 952 (49.15) | 128 (54.01) | 1833 (50.34) | 4800 (49.36) |
Parity, n (%) | |||||
 Primiparous | 1624 (41.53) | 729 (37.64) | 71 (29.96) | 1991 (54.68) | 4415 (45.40) |
 Multiparous | 2286 (58.47) | 1208 (62.36) | 166 (70.04) | 1650 (45.32) | 5310 (54.60) |
Delivery method, n (%) | |||||
 Vaginal delivery | 2220 (56.77) | 1263 (65.19) | 92 (38.94) | 1994 (54.76) | 5571 (57.29) |
 Cesarean section | 1690 (43.23) | 674 (34.81) | 145 (61.06) | 1647 (45.24) | 4154 (42.71) |
Region, n (%) | |||||
 Urban | 2532 (64.76) | 649 (33.51) | 80 (33.76) | 3116 (85.58) | 6377 (65.57) |
 Rural | 1378 (35.24) | 1288 (66.49) | 157 (66.24) | 525 (14.42) | 3348 (34.43) |
Maternal education, n (%) | |||||
 Primary school and below | 287 (7.34) | 456 (23.54) | 5 (2.11) | 38 (1.04) | 786 (8.08) |
 Middle School | 1784 (45.63) | 1261 (65.10) | 122 (51.48) | 386 (10.60) | 3553 (36.53) |
 High/Vocational School | 1009 (25.81) | 159 (8.21) | 59 (24.89) | 527 (14.47) | 1754 (18.04) |
 College and above | 830 (21.23) | 61 (3.15) | 51 (21.52) | 2690 (73.88) | 3632 (37.35) |
Resident status, n (%) | |||||
 Local | 2314 (59.18) | 1574 (81.26) | 175 (73.84) | 2024 (55.59) | 6087 (62.59) |
 Migrant | 1596 (40.82) | 363 (18.74) | 62 (26.16) | 1617 (44.41) | 3638 (37.41) |
Employment status, n (%) | |||||
 Informal | / | 1916 (98.92) | 176 (74.26) | 1089 (29.91) | 6774 (69.66) |
 Formal | / | 21 (1.08) | 61 (25.74) | 2552 (70.09) | 2951 (30.34) |
Had breastfeeding intention, n (%) | |||||
 Never/Rarely | 29 (0.74) | 17 (0.88) | 1 (0.42) | 29 (0.80) | 76 (0.78) |
 Sometimes/Often | 249 (6.37) | 46 (2.38) | 19 (8.02) | 317 (8.73) | 631 (6.50) |
 Always | 3628 (92.88) | 1870 (96.74) | 217 (91.56) | 3286 (90.47) | 9001 (92.72) |