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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