Table 2

Study attrition in total and within each surveillance arm

Total (N=4382)
n (%)
Surveillance
Active (N=2215)
n (%)
Passive (N=2167)
n (%)
OR (95% CI)*
Death120 (2.7)49 (2.2)71 (3.3) 0.68 (0.47 to 0.98)
Lost to follow-up98 (2.2)38 (1.7)60 (2.8) 0.62 (0.41 to 0.94)
With drawn204 (4.7)93 (4.2)111 (5.1)0.84 (0.63 to 1.11)
Children completing the study3960 (90.4)2035 (91.9)1925 (88.8)1.24 (0.94 to 1.63)
  • Data are shown as number and percentages within parenthesis.

  • *OR and 95% CI estimates of the effect of active surveillance corrected for cluster-specific random effects and the fixed effects of gender, religion, father’s education and fuel applying mixed-effects logistic regression are shown. Significant differences are bolded.