Table 1 The demographic data of study participants

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

 ≥350 ml⁻¹

..

139 (50 %)

..

76 (47.2 %)

 <350 ml⁻¹

..

137 (49.3 %)

..

81 (50.3 %)

 Missing

..

2 (0.7 %)

..

4 (2.5 %)

 <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 %)

 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 %)

 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 %)

 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 %)