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Table 1 Demographic characteristics of FSWs in intervention and standard of care groups at baseline and follow-up

From: A community-based comprehensive intervention to reduce syphilis infection among low-fee female sex workers in China: a matched-pair, community-based randomized study

VariablesBaselineFollow-up
Intervention
N (%)
Current standard of care
N (%)
P valueIntervention
N (%)
Current standard of care
N (%)
P value
Age group
 Age < 35219 (35.7)204 (49.6)<  0.001110 (25.3)186 (45.7)<  0.001
 Age ≥ 35394 (64.3)207 (50.4)325 (74.7)221 (54.3)
Marital status
 In marriage/Cohabitation441 (71.9)294 (71. 5)0.887278 (63.9)272 (66.8)0.373
 Single/Divorced/widowed172 (28.1)117 (28.5)157 (36.1)135 (33.2)
Educational level a
 Less than or equal to primary school389 (63.6)235 (57.2)0.040268 (61.6)230 (57.2)0.196
 Higher than primary school223 (36.4)176 (42.8)167 (38.4)172 (42.8)
Daily number of clients a
 Less than five448 (73.2)336 (81.8)0.002362 (83.2)311 (78.1)0.064
 More than five164 (26.8)75 (18.2)73 (16.8)87 (21.9)
Venue type a
 Self-rented rooms and “market day” rooms203 (33.1)144 (35.0)0.524208 (47.8)196 (49.4)0.654
 Small salon/massage room/ guesthouse/inn410 (66.9)267 (65.0)227 (52.2)201 (50.6)
Price charged per vaginal sex
  ≤ RMB 50 **487 (79.4)253 (61.6)<  0.001261 (60.0)179 (44.0)<  0.001
  > RMB 51126 (20.6)158 (38.4)174 (40.0)228 (56.0)
HIV-related knowledge awareness
 Knowledgeable427 (69.7)251 (61.1)<  0.001409 (94.0)377 (92.6)0.418
 Non-knowledgeable186 (30.3)160 (38.9)26 (6.0)30 (7.4)
Consistent condom use
 Yes344 (56.1)232 (56.4)0.917335 (77.0)287 (70.5)0.032
 No269 (43.9)179 (43.6)100 (23.0)120 (29.5)
Self-reported STD symptoms in past 6 months
 Yes64 (10.4)47 (11.4)0.6169 (2.1)30 (7.4)<  0.001
 No549 (89.6)364 (88.6)426 (97.9)377 (92.6)
Newly-diagnosed HIV infection
 Positive11 (1.8)11 (2.7)0.3403 (0.7)4 (1.0)0.641
 Negative602 (98.2)400 (97.3)432 (99.3)403 (99.0)
Syphilis infection
 Positive68 (11.1)61 (14.8)0.07627 (6.2)62 (15.2)<  0.001
 Negative545 (88.9)350 (85.2)408 (93.8)345 (84.8)
  1. **RMB: Short for renminbi, is the currency issued by the Chinese government; HIV: Human immunodefiency virus; STD: Sexually transmitted diseases; FSW: Female sex workers
  2. *P <  0.01
  3. a: Some objects had no response to this variable