Table 2.
Associations of age, marital status, hormonal contraceptive use and recent sex with schistosome infection as assessed by multivariable logistic regression
| Participant characteristic | Entire cohort (n = 58) | Schistosoma spp. ag -positive (N = 33) | Schistosoma spp. ag -negative (N = 25) | OR for association with schistosomiasis (95% CI) | P value (α = 0.05) |
|---|---|---|---|---|---|
| Median age (IQR) | 27.5 (23.8–32.0) | 25.0 (22.5–29.5) | 30.0 (25.0–34.0) | 0.934 (0.838–1.041) | 0.216 |
| Married, % | 60.7 (34/56) | 50.0 (16/32) | 79.2 (19/24) | 0.590 (0.138–2.527) | 0.477 |
| Sexual behaviour | |||||
| Hormonal contraceptive use, % | 30.4 (17/56) | 12.5 (4/32) | 54.2 (13/24) | 0.151 (0.037–0.611) | 0.008 |
| DMPA*, % | 19.6 (11/56) | 9.4 (3/32) | 33.3 (8/24) | ||
| NetEn*, % | 8.9 (5/56) | 3.1 (1/32) | 16.7 (4/24) | ||
| Oral pill, % | 1.8 (1/56) | 0 (0/32) | 4.2 (1/24) | ||
| Sex in last 3 days | |||||
| PSA+, % | 41.8 (23/55) | 31.3 (10/32) | 56.5 (13/23) | 0.480 (0.130–1.773) | 0.271 |
ag antigen, OR odds ratio, DMPA depot-medroxyprogesterone acetate, NET-EN norethisterone enanthate, PSA prostate-specific antigen. Data were assessed using multivariable binomial logistic regression with factors that were found to have significant associations in univariate analysis and the Schistosoma spp. ag-free (CCA-negative) group as the reference category. When OR is above 1, there is a positive association of given factor with schistosomiasis; OR value above 1 represents inverse relationship of given factor with schistosomiasis. OR for age is a per year OR