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Table 1 Characteristics of syphilis-seropositive pregnant women and male partners

From: Contact tracing of syphilis-seropositive pregnant women and syphilis-infection among their male partners in Bao'an district, Shenzhen, China

Characteristics Pregnant women
n (%)
Male partners
n (%)
Age (Years)
  ≤ 20 94 (7.2) 22 (2.3)
 21–30 695 (53.5) 443 (46.0)
 31–40 483(37.2) 403 (41.8)
  > 40 27 (2.1) 95 (9.9)
Ethnicity
 Han 1252 (96.4) 939 (97.5)
 Minority 47 (3.6) 24 (2.5)
Marital status
 Unmarried 203 (15.6)
 Divorced 32 (2.5)
 Married 1064 (81.9)
Occupation
 Employed 463 (35.6) 923 (95.8)
 Unemployed 836 (64.4) 40 (4.2)
Education level
 Secondary school or below 895 (68.9) 489 (50.8)
 Senior high school 301 (23.2) 326 (33.9)
 College or above 103 (7.9) 148 (15.4)
Service at first ANC visit
 Routine antenatal care 936 (72.1)
 Emergency services 363 (27.9)
Source of syphilis infection on pregnant women’s reports
 Current partners 379 (29.2)
 Someone other than current partner 296 (22.8)
 Unknown 624 (48.0)
Age at first sex (Years)
  ≤ 20 418 (32.2) 429 (44.5)
 >20 881 (67.8) 342 (35.5)
 Unknown 0 (0.0) 192 (19.9)
Number of lifetime sex partners
 1 478 (36.8) 311 (32.3)
  ≥ 2 652 (50.2) 377 (39.1)
 Unknown 169 (13.0) 275 (28.6)
History of APOs
 Yes 302 (23.2)
 No 997 (76.8)
History of drug abuse
 Yes 20 (1.5) 18 (1.9)
 No 1279 (98.5) 945 (98.1)
History of other STD
 Yes 14 (1.1) 8 (0.8)
 No 1285 (98.9) 955 (99.2)
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