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Table 2 Distribution of HPV type infection by age group (N = 571)

From: An epidemiological study assessing the prevalence of human papillomavirus types in women in the Kingdom of Bahrain

Age group Overall (N=571) 16–19 (n’=8) 20–24 (n’=77) 25–34 (n’=246) 35–44 (n’=106) 45–54 (n’=88) ≥55 (n’=46)
n 95% CI (LL–UL) n 95% CI (LL–UL) n 95% CI (LL–UL) n 95% CI (LL–UL) n 95% CI (LL–UL) n 95% CI (LL–UL) n 95% CI (LL–UL)
HPV - 515 90.2 (87.5–92.5) 6 75 (34.9–96.8) 72 93.5 (85.5–97.9) 217 88.2 (83.5–92.0) 97 91.5 (84.5–96.0) 82 93.2 (85.7–97.5) 41 89.1 (76.4–96.4)
HPV + 56 9.8 (7.5–12.5) 2 25 (3.2–65.1) 5 6.5 (2.1–14.5) 29 11.8 (8.0–16.5) 9 8.5 (4.0–15.5) 6 6.8 (2.5–14.3) 5 10.9 (3.6–23.6)
Single infection 28 4.9 (3.3–7.0) 1 12.5 (0.3–52.7) 2 2.6 (0.3–9.1) 14 5.7 (3.1–9.4) 4 3.8 (1.0–9.4) 5 5.7 (1.9–12.8) 2 4.3 (0.5–14.8)
Multiple infection 15 2.6 (1.5–4.3) 1 12.5 (0.3–52.7) 1 1.3 (0–7.0) 7 2.8 (1.2–5.8) 3 2.8 (0.6–8.0) 1 1.1 (0–6.2) 2 4.3 (0.5–14.8)
Infection with unidentifiable HPV type* 13 2.3 (1.2–3.9) 0 0 (0–36.9) 2 2.6 (0.3–9.1) 8 3.3 (1.4–6.3) 2 1.9 (0.2–6.6) 0 0 (0–4.1) 1 2.2 (0.1–11.5)
  1. HPV -: HPV Negative; HPV +: HPV Positive; N: total number of women included in the final analysis; n’: total number of women whose cervical samples were tested in each age strata; n: number of women in a given category; %: n / Number of women with available results × 100; 95% CI: exact 95% confidence interval; LL: Lower limit; UL: Upper limit.