Table 3 Comparison of premarital sexual intercourse and pregnancy among unmarried female workers from the Eastern/Central and the Western of China
|  | Eastern/central | Western | χ2 | p |
|---|---|---|---|---|
Premarital sexual intercourse (n, %) | ||||
   yes | 764(17.4) | 111(14.3) | 4.09 | 0.031 |
   no | 3615(82.6) | 666(85.7) |  |  |
Premarital pregnancy among female who had reported premarital sexual intercourse (n, %) | ||||
   yes | 203(26.6) | 28(25.2) | 0.090 | 0.764 |
   no | 561(73.4) | 83(74.8) |  |  |