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Table 1 Risk factors of microscopic parasitaemia

From: Diagnostic comparison of malaria infection in peripheral blood, placental blood and placental biopsies in Cameroonian parturient women

Factors % positive Univariate analysis Multivariate analysis
OR (95% CI)* P OR (95% CI) P
Age (years)(n)      
   ≤ 20 (94) 31.9 (30) 2.69 (1.34 – 5.41) 0.005 4.61 (1.47 – 14.70) 0.01
   21–25 (108) 18.5 (20) 1.30 (0.63 – 2.71) 0.478 2.03 (0.80 – 5.20) 0.137
   >25 (101) 14.9 (15) Reference    
Parity (n)      
   I (95) 29.5 (28) 1.78 (0.95 – 3.35) 0.072 0.61 (0.22 – 1.69) 0.337
   II (90) 17.8 (16) 0.92 (0.46 – 1.87) 0.820 0.40 (0.15 – 1.06) 0.064
   ≥ III (121) 19.0 (23) Reference    
SP dosage (n)      
   ≥ 2 (141) 14.9 (21) 0.26 (0.11 – 0.62) 0.002 0.18 (0.06 – 0.52) 0.002
   1 (129) 24.0 (31) 0.47 (0.21 – 1.09) 0.076 0.31 (0.11 – 0.88) 0.028
   No SP (30) 40.0 (12) Reference    
Fever history (n)      
   Yes (125) 28.8 (36) 2.45 (1.36 – 4.40) 0.002 2.98 (1.58 – 5.73) 0.001
   No (162) 14.2 (23) Reference    
  1. OR = odds ratio; CI = confidence interval
  2. * Estimated by Pearson-Chi-Square
  3. † Estimated by multivariate logistic regression including all risk factors in the table