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Table 1 The demographic data of study participants

From: Human papillomavirus prevalence in South African women and men according to age and human immunodeficiency virus status

  HIV-negative women, N = 208 HIV-positive women, N = 278 HIV-negative men, N = 325 HIV-positive men, N = 161
Median age (range) 37 years (18–66 years) 32 years (18–65 years) 38 years (19–67 years) 36 years (22–64 years)
 18–25 years N = 41, median: 22 years N = 44, median: 23 years N = 35, median: 24 years N = 8, median: 23 years
 26–35 years N = 59, median: 30 years N = 130, median: 30 years N = 99, median: 31 years N = 64, median: 31 years
 36–45 years N = 64, median: 40 years N = 71, median: 39 years N = 105, median: 40 years N = 67, median: 39 years
 46–66 years N = 44, median: 49 years N = 33, median: 49 years N = 86, median: 53 years N = 22, median: 52 years
CD4 count
 ≥350 ml−1 .. 139 (50 %) .. 76 (47.2 %)
 <350 ml−1 .. 137 (49.3 %) .. 81 (50.3 %)
 Missing .. 2 (0.7 %) .. 4 (2.5 %)
Age at first sex
 <16 years 28 (63.9 %) 49 (17.6 %) 87 (26.8 %) 40 (24.8 %)
 16–18 years 123 (59.1 %) 171 (61.5 %) 163 (50.2 %) 94 (58.4 %)
 >18 years 55 (26.4 %) 57 (20.5 %) 71 (21.8 %) 26 (16.2 %)
 Missing 2 (1.0 %) 1 (0.4 %) 4 (1.2 %) 1 (0.6 %)
Smoking
 Never 133 (63.9 %) 182 (65.5 %) 48 (26.8 %) 31 (19.3 %)
 Previously 13 (6.3 %) 28 (10.1 %) 45 (13.8 %) 26 (16.1 %)
 Current 62 (29.8 %) 68 (24.5 %) 228 (70.2 %) 104 (64.6 %)
 Missing 0 (0.0 %) 0 (0.0 %) 4 (1.2 %) 0 (0 %)
Lifetime number of sexual partners
 1–3 137 (65.9 %) 134 (48.2 %) 94 (28.9 %) 39 (24.2 %)
 4–6 51 (24.5 %) 106 (38.1 %) 91 (28.0 %) 38 (23.6 %)
 ≥7 17 (8.2 %) 37 (13.3 %) 136 (41.8 %) 82 (50.9 %)
 Missing 3 (1.4 %) 1 (0.4 %) 4 (1.2 %) 2 (1.2 %)
Cervical cytology
 Normal 157 (75.5 %) 167 (60.1 %)   
 ASCUS 19 (9.1 %) 23 (8.3 %)   
 LSIL 17 (8.2 %) 63 (22.7 %)   
 HSIL 2 (1.0 %) 10 (3.6 %)   
 Inadequate 13 (6.2 %) 14 (5.0 %)   
 Missing 0 (0.0 %) 1 (0.4 %)   
  1. ASCUS atypical squamous cell of undetermined significance, LSIL low grade squamous intraepithelial lesion, HSIL high grade squamous intraepithelial lesion