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Table 5 Relapse rate after discharge from therapeutic home treatment for SAM by study group

From: Effects of unconditional cash transfers on the outcome of treatment for severe acute malnutrition (SAM): a cluster-randomised trial in the Democratic Republic of the Congo

Nutritional relapsea , b Intervention arm Control arm P value
Number (%) 707 (51.7) 660 (48.3)
Relapsed to MAMa    
 Number of events/child-weeks at risk 91/11,505 292/7813  
 Incidence rate per 100 child-weeks (95% CI) 0.79 (0.63–0.95) 3.74 (3.31–4.17)  
 Incidence rate ratio (95% CI)c 0.25 (0.14–0.45) 1.00 (Reference) <0.001
 Unadjusted HR (95% CI) 0.21 (0.11–0.41) 1.00 (Reference) 0.005
 Adjusted HR (95% CI)d 0.21 (0.11–0.41) 1.00 (Reference) 0.001
Relapsed to SAMb    
 Number of events/child-weeks at risk 24/12,761 73/11,558  
 Incidence rate per 100 child-weeks (95% CI) 0.19 (0.11–0.26) 0.63 (0.49–0.78)  
 Incidence rate ratio (95% CI)c 0.31 (0.19–0.49) 1.00 (Reference) <0.001
 Unadjusted HR (95% CI) 0.31 (0.17–0.59) 1.00 (Reference) 0.003
 Adjusted HR (95% CI)d 0.30 (0.16–0.58) 1.00 (Reference) 0.001
  1. aRelapse to MAM was defined as the development of a WHZ < –2.0 and ≥ –3.0 (WHO Growth Standards 2006) or MUAC <125 mm and ≥115 mm (without bilateral oedema) at least once during the monthly follow-up visits without the child developing SAM criteria during any other follow-up visit
  2. bRelapse to SAM was defined as development of a WHZ < −3.0 (WHO Growth Standards 2006) or MUAC <115 mm or presence of bilateral oedema at least once during the monthly follow-up visits
  3. cComputed by using a mixed-effects Poisson regression model, with health centre as random effects
  4. dFrom marginal Cox proportional hazards models where the outcome variable is time until first event and time is calendar week. 95% CIs used robust estimates of the variance to account for clustering at the health centre level, and P value was performed with the robust score test. Co-variates in the adjusted model included the household size, the IDDS score and the school achievement of the mother