Table 3. Model-fitting for anemia, malaria and urinary schistosomiasis, and geohelminths controlling for random-effects at the hamlet level.
Condition | Demographic group | Response variable | Baseline | Factor | Odds ratio (and CI95) | P-value |
Anemia* | Children | Sex | Boy | Girl | 0.82 (0.68–0.98) | 0.032 |
Age (continuous) | +1 year | 0.92 (0.90–0.95) | <0.00001 | |||
Malaria (microscopy | Negative | Positive | 1.79 (1.37–2.32) | <0.00001 | ||
Urinary schistosomiasis (Hemastix®) | Negative | Positive | 1.30 (0.97–1.75) | 0.078 | ||
Malaria | Children | Sex | Boy | Girl | 0.82 (0.66–1.03) | 0.082 |
Age (continuous) | +1 year | 1.01 (0.98–1.04) | 0.61 | |||
Mother knows malaria? | No | Yes | 0.63 (0.47–0.85) | 0.002 | ||
Mothers | Age | +1 year | 0.96 (0.94–0.98) | <0.001 | ||
Pregnant | No | Yes | 0.46 (0.24–0.90) | 0.023 | ||
History of previous treatment | No | Yes | 0.60 (0.40–0.92) | 0.020 | ||
S. haematobium | Children | Sex | Boy | Girl | 0.99 (0.74–1.34) | 0.97 |
Age | +1 year | 1.12 (1.07–1.16) | <0.00001 | |||
Child bathes in river? | No | Yes | 1.75 (1.06–2.91) | 0.030 | ||
Child bathes in dam? | No | Yes | 20.23 (1.30–314.9) | 0.032 | ||
Mothers | Age | +1 year | 0.99 (0.97–1.01) | 0.20 | ||
Pregnant? | No | Yes | 0.56 (0.32–1.00) | 0.049 | ||
Self-reported water contact | Less frequently | Daily | 2.08 (1.22–3.53) | 0.007 | ||
STH infections* | Children | Age | +1 year | 1.08 (1.06–1.11) | <0.00001 | |
Sex | Boy | Girl | 0.90 (0.74–1.10) | 0.313 | ||
Self-reported worms in stool? | No | Yes | 1.45 (1.17–1.80) | <0.001 | ||
Self-reported tummy pain? | No | Yes | 1.29 (0.96–1.74) | 0.095 |
Anemia model included 1913 children >2 years of age, malaria model included 2309 children and 878 mothers, urinary schistosomiasis model included 2094 children and 894 mothers, and model for geohelminth infections included 2085 children.
Note that none of the variables tested for mothers was significantly associated with anemia or with geohelminth infection.