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Table 6 Mean Body Mass Index of households all ages comparing two groups, one surveyed (in June 2003) before and the other (in July 2004) after food distribution

From: An assessment of food supplementation to chronically sick patients receiving home based care in Bangwe, Malawi : a descriptive study

  Group N Mean Std. Deviation Std. Error Mean
BMI 2003 506 21.86 6.54 .29
  2004 343 19.38 4.22 .23
  1. Student t = 6.2, df = 847, p < 0.001