Demographic and socioeconomic factors affecting syphilis positive rates
| Factors | No of women screened (%) | No syphilis positive (%) | Positive rate(%) | χ2 (p? |
|---|---|---|---|---|
| Age | ||||
| <20 | 13 404 (3.2) | 65 (3.2) | 0.5 | 11.5 |
| 20–24 | 157 998 (37.7) | 759 (37.6) | 0.5 | (0.022) |
| 25–29 | 169 559 (40.5) | 771 (38.2) | 0.5 | |
| 30–34 | 66 349 (15.8) | 372 (18.4) | 0.6 | |
| ⩾35 | 11 560 (2.8) | 52 (2.6) | 0.5 | |
| Educational background | ||||
| Illiterate/primary school | 175 632 (41.9) | 309 (15.3) | 0.2 | 2699.8 |
| Junior high school | 62 286 (14.9) | 1077 (53.4) | 1.7 | (0.000) |
| Senior high school | 75 899 (18.1) | 505 (25.0) | 0.7 | |
| Higher education | 105 054 (25.1) | 128 (6.3) | 0.1 | |
| Occupation | ||||
| Worker | 53 741 (12.8) | 273 (13.5) | 0.5 | 508.7 |
| Farmer | 15 666 (3.7) | 82 (4.1) | 0.5 | (0.000) |
| Civil servant | 8 252 (2.0) | 6 (0.3) | 0.1 | |
| Professional | 63 752 (15.2) | 52 (2.6) | 0.1 | |
| Commercial/service personnel | 28 609 (6.8) | 228 (11.3) | 0.8 | |
| Unemployed | 148 992 (35.6) | 1052 (52.1) | 0.7 | |
| Others | 99 859 (23.8) | 326 (16.1) | 0.3 | |
| District | ||||
| Luohu | 32 318 (7.7) | 189 (9.4) | 0.6 | 35.6 |
| Futian | 69 130 (16.5) | 297 (14.7) | 0.4 | (0.000) |
| Nanshan | 59 791 (14.3) | 235 (11.6) | 0.4 | |
| Baoan | 182 487 (43.6) | 911 (45.1) | 0.5 | |
| Longgang | 68 686 (16.4) | 372 (18.4) | 0.5 | |
| Yantian | 6 459 (1.5) | 15 (0.7) | 0.2 | |
| Residency status (Hukou) | ||||
| Local | 53 532 (12.8) | 212 (10.5) | 0.4 | 68.5 |
| Temporary | 179 360 (42.8) | 1048 (51.9) | 0.6 | (0.000) |
| Floating | 185 979 (44.4) | 759 37.6 () | 0.4 | |
| Gestational weeks at first diagnosis | ||||
| <5 | 7 540 (1.8) | 36 (1.8) | 0.5 | 151.6 |
| 5–8 | 50 767 (12.1) | 228 (11.3) | 0.5 | (0.000) |
| 9–12 | 72 213 (17.2) | 227 (11.2) | 0.3 | |
| 13–16 | 54 202 (12.9) | 237 (11.7) | 0.4 | |
| 17–20 | 39 290 (9.4) | 215 (10.7) | 0.6 | |
| 21–24 | 35 730 (8.5) | 142 (7.0) | 0.4 | |
| 25–28 | 26 891 (6.4) | 188 (9.3) | 0.6 | |
| 29–32 | 25 844 (6.2) | 205 (10.2) | 0.8 | |
| 33–36 | 28 316 (6.8) | 164 (8.1) | 0.6 | |
| 37–40 | 70 454 (16.8) | 321 (15.9) | 0.5 | |
| ⩾41 | 7 204 (1.7) | 55 (2.7) | 0.8 | |
| Total (for each section) | 418 871 (100.0) | 2019 (100.0) | 0.48 | ? |