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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