Table 5 Prevalence of periportal fibrosis in relation to demographic characteristics of the study participants, infection status and intensity of infection
Variable | No. examined | PPF (%,n) | 95%CI | χ2 | P-value | |
|---|---|---|---|---|---|---|
Sex | Female | 513 | 24.2% (124) | 20.7–28.1 | 4.9559 | 0.026 |
Male | 417 | 30.7% (128 | 26.4–35.3 | |||
Age (in years) | 1–5 | 71 | 8.5% (6) | 3.7–17.8 | 131.0316 | 0.001 |
6–15 | 418 | 13.2% (55) | 10.2–16.8 | |||
16–25 | 119 | 31.1% (37) | 23.3–40.1 | |||
26–35 | 103 | 39.8% (41) | 30.6–49.6 | |||
36–45 | 91 | 47.3% (43) | 37.1–57.7 | |||
≥46 | 128 | 54.7% (70) | 45.8–63.2 | |||
S. mansoni infection status | Infected | 641 | 24.3% (156) | 21.2–27.8 | 7.9531 | 0.005 |
Not infected | 289 | 33.2% (96) | 27.9–38.8 | |||
Intensity of infection | 1–99 | 354 | 25.9% (92) | 21.7–30.8 | 1.7427 | 0.42 |
100–399 | 204 | 21.1% (43) | 15.9–27.3 | |||
≥400 | 83 | 25.3% (21) | 16.9–35.9 | |||