Variable | Males (n = 3835) | χ2 | p | Females (n = 2512) | χ2 | p | ||||
---|---|---|---|---|---|---|---|---|---|---|
Total | Pregnancy | % | Total | Pregnancy | % | |||||
Residential areas | ||||||||||
 0 = Rural | 1886 | 342 | 18.1 | 4.61 | 0.032 | 1371 | 198 | 14.4 | 0.48 | 0.491 |
 1 = Urban | 1949 | 407 | 20.9 | 1141 | 176 | 15.4 | ||||
Age (Years) | ||||||||||
 1 = 15–17 | 210 | 49 | 23.3 | 24.54 | < 0.001 | 84 | 13 | 15.5 | 36.84 | < 0.001 |
 2 = 18–22 | 3387 | 626 | 18.5 | 2320 | 323 | 13.9 | ||||
 3 = 23–26 | 238 | 74 | 31.1 | 108 | 38 | 35.2 | ||||
Monthly expenditure (Yuan) | ||||||||||
 0 ≥ 1000 | 3056 | 452 | 14.8 | 215.08 | < 0.001 | 1996 | 273 | 13.7 | 11.25 | 0.001 |
 1 ≤ 1000 | 779 | 297 | 38.1 | 516 | 101 | 19.6 | ||||
Living arrangement | ||||||||||
 0 = Living with both parents | 2297 | 347 | 15.1 | 71.33 | < 0.001 | 1734 | 222 | 12.8 | 19.22 | < 0.001 |
 1 = Others* | 1538 | 402 | 26.1 | 778 | 152 | 19.5 | ||||
Family’s attitude toward premarital sex | ||||||||||
 0 = Neutral or unacceptable | 2046 | 347 | 12.3 | 147.21 | < 0.001 | 1909 | 211 | 11.1 | 92.33 | < 0.001 |
 1 = Acceptable | 1789 | 402 | 27.8 | 603 | 163 | 27.0 | ||||
Experience of sexual abuse | ||||||||||
 0 = No or Not sure | 3493 | 524 | 15.0 | 511.25 | < 0.001 | 2032 | 276 | 13.6 | 14.31 | < 0.001 |
 1 = Yes | 342 | 225 | 65.8 | 480 | 98 | 20.4 | ||||
Age at firs sex | ||||||||||
 0 = Older than 14 | 3478 | 454 | 13.1 | 997.35 | < 0.001 | 2373 | 275 | 11.6 | 368.51 | < 0.001 |
 1 = Younger than 14 | 357 | 295 | 82.6 | 139 | 99 | 71.2 | ||||
Number of Partners | ||||||||||
 0 = Single | 2533 | 497 | 19.6 | 0.04 | 0.844 | 1838 | 228 | 12.4 | 33.35 | < 0.001 |
 1 = Multiple | 1302 | 252 | 19.4 | 674 | 146 | 21.7 | ||||
Partner type | ||||||||||
 0 = Stable | 3545 | 646 | 18.2 | 51.02 | < 0.001 | 2426 | 332 | 13.7 | 80.99 | < 0.001 |
 1 = Casual | 290 | 103 | 35.5 | 86 | 42 | 48.8 | ||||
Condom use knowledge | ||||||||||
 0 = Wrong or unsure | 725 | 160 | 22.1 | 3.67 | 0.056 | 637 | 96 | 15.1 | 0.02 | 0.881 |
 1 = Correct | 3110 | 589 | 18.9 | 1875 | 278 | 14.8 | ||||
Condom use at first sex | ||||||||||
 0 = Yes | 2487 | 510 | 20.5 | 4.29 | 0.038 | 1665 | 234 | 14.1 | 2.71 | 0.099 |
 1 = No or Not sure | 1348 | 239 | 17.7 | 847 | 140 | 16.5 | ||||
Difficulties in acquiring condoms | ||||||||||
 0 = No difficulty at all | 3448 | 631 | 18.3 | 32.90 | < 0.001 | 2175 | 305 | 14.0 | 9.59 | 0.002 |
 1 = Some or very difficult | 387 | 118 | 30.5 | 337 | 69 | 20.5 | ||||
Condom use skills | ||||||||||
 0 = Knowing how to use condoms | 822 | 111 | 13.5 | 24.18 | < 0.001 | 211 | 37 | 17.5 | 1.27 | 0.259 |
 1 = Not knowing how to use condoms | 3013 | 638 | 21.2 | 2301 | 337 | 14.6 |