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Table 5 Univariate and multivariate adjusted risk factors analysis for time-to-recurrent P. vivax episodes and P. falciparum episodes

From: Identification of different malaria patterns due to Plasmodium falciparum and Plasmodium vivax in Ethiopian children: a prospective cohort study

  P. vivax P. falciparum
Univariate HR (95 % CI) Multivariate AHR (95 % CI) G P-value Univariate HR (95 % CI) Multivariate AHR (95 % CI) G P-value
Gender
 Female 1 1   1 1  
 Male 1.0 (0.8,1.2) 1.0 (0.8,1.2)   0.9 (0.8,1.1) 0.9 (0.7,1.0)  
Age (years)
 ≤3 1 1 <0.01* 1 1 0.02*
 3–7 0.8 (0.6,1.0) 0.7* (0.6,0.9) 1.2 (0.9,1.4) 0.9 (0.8,1.1)
 ≥7 0.6* (0.4,0.9) 0.6* (0.4,0.9) 1.7* (1.3,2.2) 1.2* (1.1,1.6)
Proximity to the dam
 ≤1.17 km 1 1 0.25 1 1 0.91
1.17–1.79 0.8 (0.7,1.1) 0.8 (0.6,1.1) 0.9 (0.8,1.1) 0.9 (0.7,1.2)
1.79–2.97 0.9 (0.7,1.1) 0.9 (0.7,1.2) 1.0 (0.8,1.1) 1.0 (0.8,1.3)
 >2.97 1.0 (0.8,1.3) 0.9 (0.7,1.2) 1.1 (0.9,1.3) 1.1 (0.9,1.3)
Season
 Long rainy 1 1 <0.01* 1 1 <0.01*
 Dry 2.9* (2.2,3.9) 2.7* (2.2,3.5) 14.6* (12.0,17.7) 16.9 (14.3,20.2)
 Moderate rainy 0.9 (0.6,1.2) 1.0 (0.8,1.3) 1.1 (0.8,1.4) 1.4* (1.1,1.8)
Model parameters
 ρ   0.75    0.86  
 Ɵ (SE)   0.36 (0.13)    0.58 (0.27)  
 η (SE)   0.62 (0.26)    0.46 (0.19)  
  1. HR hazard ratio; AHR adjusted hazard ratio; SE standard error, G p-value global p-value
  2. * P < 0.05