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Table 1 Baseline sociodemographic characteristics and risk factors for cervical disease at enrolment

From: Reduced acquisition and reactivation of human papillomavirus infections among older women treated with cryotherapy: results from a randomized trial in South Africa

  No. of subjects (%)
  HIV negative HIV positive
  Cryotherapy arm, (n = 271) Control arm, (n = 269) Cryotherapy arm, (n = 38) Control arm, (n = 34)
Age, years:     
   35-39 110 (40.6) 114 (42.4) 19 (50.0) 21 (61.8)
   40-49 124 (45.8) 116 (43.1) 18 (47.4) 9 (26.5)
   50-65 37 (13.7) 39 (14.5) 1 (2.6) 4 (11.8)
Education:     
   No school 28 (10.3) 28 (10.4) 3 (7.9) 3 (8.8)
   Some primary school 103 (38.0) 98 (36.4) 13 (34.2) 11 (32.4)
   Some high school 108 (39.9) 103 (38.3) 17 (44.7) 13 (38.2)
   High school graduate 32 (11.8) 40 (14.9) 5 (13.2) 7 (20.6)
Currently employed 73 (26.9) 70 (26.0) 10 (26.3) 3 (8.8)
Married 141 (52.0) 150 (55.8) 13 (34.2) 12 (35.3)
Age < 16 years at first sexual intercourse 98 (36.2) 102 (37.9) 12 (31.6) 13 (38.2)
≥ 5 Lifetime sex partners 84 (31.0) 82 (30.5) 17 (44.7)a 24 (70.6)a
≥ 2 Sex partners during previous month 3 (1.1) 4 (1.5) 1 (2.6) 1 (2.9)
Current smoker 21 (7.8) 19 (7.1) 6 (15.8) 4 (11.8)
Current contraceptive use:     
   Injectable 57 (21.0) 44 (16.4) 10 (26.3) 9 (26.5)
   Oral 10 (3.7) 5 (1.9) 0 2 (5.9)
No. of live births:     
   None 5 (1.9) 10 (3.7) 0 3 (8.8)
   1-4 181 (66.8) 184 (68.4) 29 (76.3) 24 (70.6)
   ≥ 5 85 (31.4) 75 (27.9) 9 (23.7) 7 (20.6)
Cytologic abnormality (ASCUS or greater) 15 (5.5) 20 (7.4) 2 (5.3) 3 (8.8)
Chlamydia trachomatis or Neisseria gonorrhoeae 16 (5.9) 13 (4.8) 6 (15.8) 2 (5.9)
Trichomonas vaginalis 30 (11.1) 25 (9.3) 3 (7.9) 4 (11.8)
  1. a P value < 0.05 for comparisons between the cryotherapy and control group.
  2. ASCUS = atypical squamous cells of undetermined significance.