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Table 1 Prevalence rates (PR) and multivariate predictors of infection with P. vivax and P. falciparum by qPCR. Adjusted odds ratios (AOR), 95% confidence intervals (95% CI) and P-values are given only for statistically significant factors

From: Very high carriage of gametocytes in asymptomatic low-density Plasmodium falciparum and P. vivax infections in western Thailand

   P. vivax P. falciparum
  n PR AOR 95% CI P-value PR AOR 95% CI P-value
Region
 Bong Ti 2359 3.82   1.85–3.80 0.016 1.36    
 Kong Mong Tha 415 1.45 0.36 0.16–0.83 0    
 Suan Phueng 1535 3.12 0.69 0.47–1.01 1.17    
Gender
 Female 2222 2.03    < 0.001 0.63    0.003
 Male 2087 4.74 2.65 1.85–3.80 1.72 2.63 1.40–4.94
Age group (years)
 < 7 758 1.19    < 0.001 0.40    0.088
 7–12 849 1.88 1.87 0.82–4.29 0.82 2.51 0.67–9.88
 13–17 409 3.91 3.93 1.71–9.04 2.20 5.91 1.56–22.4
 18–49 1699 5.30 5.70 2.83–11.5 1.47 3.78 1.12–12.8
 ≥ 50 594 2.19 2.09 0.88–4.97 1.01 2.74 0.67–11.2
Recent travel
 No 4231 3.29     1.09    
 Yes 78 6.41     5.13    
 To Myanmar 27 7.41     11.11 9.04 2.53–32.2 0.001
Feeling unwell
 No 4103 3.12    0.001 1.12    
 Yes 206 7.77 3.56 2.03–6.58 1.94    
Malaria last 2 weeks
 No 4289 3.36     1.05    < 0.001
 Yes 19 0     26.32 30.1 9.87–92.0