Table 1 Demographic characteristics of initial fertility patients (n = 459) and secondary infertile patients (n = 234)
Variables | First child infertility(n = 459) | Second child infertility(n = 234) | χ2 | P value |
|---|---|---|---|---|
No. (%) | No. (%) | |||
Age | n = 452 | n = 233 | 68.171 | 0.000** |
20–30 | 31(6.9) | 16(6.9) | ||
31–40 | 395(87.4) | 151(64.8) | ||
> 40 | 26(5.8) | 66(28.3) | ||
Ethnicity | n = 453 | n = 231 | 26.637 | 0.000** |
Han | 441(97.4) | 202(87.4) | ||
Minority | 12(2.6) | 29(12.6) | ||
Elective abortion | n = 412 | n = 200 | 58.184 | 0.000** |
Yes | 196(47.6) | 160(80.0) | ||
None | 216(52.4) | 60(20.0) | ||
OC history | n = 429 | n = 216 | 5.581 | 0.020* |
Yes | 223(52.0) | 91(42.1) | ||
No | 206(48.0) | 125(57.9) | ||
Education level | n = 453 | n = 231 | 36.814 | 0.000** |
Junior school and blow | 11(2.4) | 8(3.5) | ||
Junior high School | 48(10.6) | 57(24.7) | ||
High school | 44(9.7) | 36(15.6) | ||
Undergraduate | 311(68.7) | 122(52.8) | ||
Graduate and above | 39(8.6) | 8(3.5) | ||
History of allergy | n = 442 | n = 230 | 0.571 | 0.450 |
Yes | 59(13.3) | 26(11.3) | ||
No | 383(86.7) | 204(88.7) | ||
Monthly salary | n = 454 | n = 225 | 13.248 | 0.001* |
Low | 123(27.1) | 92(40.9) | ||
Middle | 222(48.9) | 90(40.0) | ||
High | 109(24.0) | 43(19.1) | ||
Single child in the family | n = 422 | n = 203 | 41.392 | 0.000** |
Yes | 205(52.5) | 44(21.7) | ||
No | 217(47.5) | 159(78.3) | ||
Anxiety | n = 459 | n = 234 | 2.415 | 0.120 |
Yes | 108(23.5) | 43(18.4) | ||
No | 351(76.5) | 191(81.6) |