From: Seroprevalence and risk factors on Syphilis among blood donors in Chengdu, China,from 2005 to 2017
 | Case | Control | ||
---|---|---|---|---|
NO. | Percent (%) | NO. | Percent (%) | |
Marital status | ||||
 Single | 93 | 25.3 | 193 | 26.2 |
 Married | 266 | 72.3 | 536 | 72.8 |
 Divorced | 9 | 2.4 | 7 | 1.0 |
Education | ||||
 < Primary school | 34 | 9.2 | 38 | 5.2 |
 Middle school | 123 | 33.4 | 214 | 29.1 |
 High school | 107 | 29.1 | 214 | 29.1 |
 Complete university and above | 104 | 28.3 | 270 | 36.7 |
Sex | ||||
 Male | 177 | 48.1 | 354 | 48.1 |
 Female | 191 | 51.9 | 382 | 51.9 |
Occupation | ||||
 Worker | 59 | 16.0 | 111 | 15.1 |
 Farmer | 46 | 12.5 | 119 | 16.2 |
 Merchant and commercial service | 95 | 25.8 | 125 | 17.0 |
 Government staff | 40 | 10.9 | 100 | 13.6 |
 Student | 25 | 6.8 | 84 | 11.4 |
 Staff | 38 | 10.3 | 100 | 13.6 |
 Other | 65 | 17.7 | 97 | 13.2 |