Table 1

Factors associated with the intent to have a second child among 11 991 women of childbearing age

Factorn (%)IntentUnivariate modelMultivariate model
To have a second child (n (%))cORs (95% CI)P valueaORs (95% CI)P value
Total11 9914725 (39.4)
Year
 20163647 (30.4)1316 (36.1)11
 20178344 (69.6)3409 (40.9)1.22 (1.13 to 1.33)<0.0011.31 (1.17 to 1.48)<0.001
Age (years)
 <252748 (22.9)556 (20.2)11
 25–293151 (26.3)1308 (41.5)2.80 (2.49 to 3.15)<0.0011.28 (1.10 to 1.50)0.002
 30–342588 (21.6)1390 (53.7)4.57 (4.05 to 5.16)<0.0011.30 (1.09 to 1.55)0.004
 35–391812 (15.1)900 (49.7)3.89 (3.41 to 4.43)<0.0011.29 (1.15 to 1.44)0.016
 ≥401692 (14.1)571 (33.7)2.01 (1.75 to 2.30)<0.0010.99 (0.82 to 1.19)0.902
Region
 Eastern8422 (70.2)3275 (38.9)1.23 (1.07 to 1.41)0.0041.28 (1.10 to 1.49)0.001
 Central2582 (21.5)1113 (43.1)1.46 (1.25 to 1.70)<0.0011.50 (1.27 to 1.78)<0.001
 Western987 (8.2)337 (34.1)11
Ethnicity
 Han11 651 (97.2)4595 (39.4)1
 Other340 (2.8)130 (38.2)0.95 (0.76 to 1.19)0.654
Residence
 Rural4595 (38.3)1974 (43.0)1.27 (1.18 to 1.37)<0.0011.62 (1.47 to 1.78)<0.001
 Urban7396 (61.7)2751 (37.2)11
Educational level
 Primary school or below109 (0.9)36 (33.0)1
 Junior high school1632 (13.6)746 (45.7)1.71 (1.13 to 2.57)0.011
 Senior high school1088 (9.1)493 (45.3)1.68 (1.11 to 2.55)0.015
 College or higher9162 (76.4)3450 (37.7)1.22 (0.82 to 1.83)0.322
Marriage
 Single4441 (37.0)941 (21.2)11
 Married7550 (63.0)3784 (50.1)3.74 (3.43 to 4.07)<0.0011.74 (1.50 to 2.02)<0.001
Occupation
 Factory worker1614 (13.5)710 (44.0)11
 Farmer300 (2.5)176 (58.7)1.81 (1.41 to 2.32)<0.0011.43 (1.09 to 1.88)0.010
 Manager3323 (27.7)1432 (43.1)0.96 (0.86 to 1.09)0.5511.07 (0.94 to 1.22)0.323
 Rural migrant worker1392 (11.6)681 (48.9)1.22 (1.06 to 1.41)0.0071.11 (0.95 to 1.30)0.200
 Clerk1714 (14.3)594 (34.7)0.68 (0.59 to 0.78)<0.0010.86 (0.71 to 1.03)0.103
 Student1592 (13.3)240 (15.1)0.23 (0.19 to 0.27)<0.0010.63 (0.51 to 0.79)<0.001
 Other2056 (17.1)892 (43.4)0.98 (0.86 to 1.11)0.7141.02 (0.88 to 1.18)0.806
Annual household income (RMB)
 <30 0003650 (30.4)1151 (31.5)11
 30 000–80 0004406 (36.7)1847 (41.9)1.57 (1.43 to 1.72)<0.0010.99 (0.88 to 1.10)0.798
 >80 0003935 (32.8)1727 (43.9)1.70 (1.55 to 1.87)<0.0011.13 (1.00 to 1.28)0.047
History of abortion
 No10 073 (84.0)3758 (37.3)11
 Yes1918 (16.0)967 (50.4)1.71 (1.55 to 1.88)<0.0011.18 (1.05 to 1.31)0.004
First child
 Boy3639 (30.3)1811 (49.8)3.47 (3.16 to 3.80)<0.0012.70 (2.33 to 3.13)<0.001
 Girl3091 (25.8)1745 (56.5)4.54 (4.12 to 5.00)<0.0013.65 (3.14 to 4.24)<0.001
 None5261 (43.9)1169 (22.2)11
Barriers to having more children
 Economic barrier5576 (46.5)2110 (37.8)0.65 (0.56 to 0.76)<0.0010.37 (0.31 to 0.43)<0.001
 Health barrier1862 (15.5)731 (39.3)0.69 (0.59 to 0.82)<0.0010.39 (0.32 to 0.47)<0.001
 Childrearing barrier2040 (17.0)794 (38.9)0.68 (0.58 to 0.81)<0.0010.32 (0.27 to 0.39)<0.001
 Educational barrier1752 (14.6)723 (41.3)0.75 (0.64 to 0.90)<0.0010.38 (0.32 to 0.46)<0.001
 Other761 (6.3)367 (48.2)11
  • aOR, adjusted odds ratio; cOR, crude odds ratio;RMB, renminbi.