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Table 3 Three-level analyses to identify determinants for recent dengue infection in Ban Pa Nai, northern Thailand.

From: Multi-level analyses of spatial and temporal determinants for dengue infection

  % sca aORa 95% CIa
ICC individuals   <0.0001  
ICC households   0.058  
Time (survey)    
May 2002 8.3 1.0  
September 2002 12.7 1.60 1.01–2.55
May 2003 5.1 0.63 0.36–1.10
September 2003 0.7 0.08 0.02–0.27
Individual-level variables:    
Spend days    
School 2.5 1.0  
House 6.2 3.06 1.16–8.08
Fields 6.1 3.22 1.20–8.66
Forest 4.8 1.97 0.19–20.5
Factory/office 7.9 3.05 0.74–12.5
Other 5.1 2.58 0.69–9.65
Eat time    
< 18.00 h 4.4 1.0  
>= 18.00 h 6.6 1.70 1.09–2.65
Using bednets    
No 8.7 1.0  
Yes 5.3 0.43 0.24–0.80
Days in forest    
No 6.2 1.0  
Yes 12.3 1.75 0.99–3.07
Evening around house    
No 5.6 1.0  
Yes 8.2 1.52 1.01–2.29
Household-level variables:    
Housing    
Wood or bamboo 5.9 1.0  
Stone 7.8 1.10 0.61–2.00
Combination of stone, wood/bamboo 4.1 0.59 0.36–0.96
Distance to irrigated fields    
0–60 m 7.6 1.0  
>60 m 4.3 0.45 0.29–0.70
% of irrigated fields in 200 m    
0–40% 6.5 1.0  
>40% 4.8 0.51 0.33–0.78
  1. a sc = recent dengue infection; aOR = adjusted Odds ratio; 95%-CI = 95% Confidence Interval.