Table 1 Parameter estimates with 95% confidence interval (in parentheses) for the time-to-first malaria based on different univariable and multivariable shared frailty models
From: The effect of dams and seasons on malaria incidence and anopheles abundance in Ethiopia
Covariates | Univariable model | Multivariable models | |||
|---|---|---|---|---|---|
HR‡(95% CI) | Adjusted HR (95% CI) | ||||
Distance | 0.989(0.894, 1.093) | 0.990(0.896, 1.093) | 0.995(0.900, 1.100) | 0.993(0.899,1.096) | |
Sex | Female(ref) | 1.000 | 1.000 | 1.000 | 1.000 |
Male | 0.951(0.803, 1.127) | 0.952(0.804, 1.127) | 0.952(0.804, 1.128) | 0.952(0.804, 1.127) | |
Age | ≤ 3 years(ref) | 1.000 | 1.000 | 1.000 | 1.000 |
3 to 7 years | 1.663 ∗(1.117, 2.474) | 1.804 ∗∗(1.211, 2.687) | 1.678 ∗(1.126, 2.500) | 1.802 ∗∗(1.210, 2.685) | |
≥ 7 years | 1.656 ∗(1.098, 2.498) | 1.791 ∗∗(1.182, 2.713) | 1.686 ∗(1.112, 2.554) | 1.790 ∗∗(1.182, 2.712) | |
Year | Year 1(ref) | 1.000 | 1.000 | 1.000 | 1.000 |
Year 2 | 0.991(0.837, 1.1756) | 0.921(0.773, 1.097) | 0.983(0.826, 1.170) | 0.933(0.785, 1.110) | |
Mosquito density | 1.006 ∗(1.001, 1.011) | 0.997(0.992, 1.003) | 1.006 ∗(1.001, 1.011) | ||
Season | Dry season(ref) | 1.000 | 1.000 | 1.000 | |
Long rainy season | 4.415 ∗∗(3.390, 5.750) | 4.545 ∗∗(3.478, 5.938) | 4.455 ∗∗(3.421, 5.802) | ||
Short rainy season | 2.182 ∗∗(1.580, 3.013) | 2.178 ∗∗(1.576, 3.008) | 2.174 ∗∗(1.574, 3.004) | ||