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Table 1 Sample size calculation, 2014

From: Associations of childhood, maternal and household dietary patterns with childhood stunting in Ethiopia: proposing an alternative and plausible dietary analysis method to dietary diversity scores

  Baseline (2010) rate (%) Expected endline rate (%) Percentage point (pp) or change in mean z-score Power Intra-class correlation at baseline (2010) Intra-class correlation at 2013 progress evaluation survey Minimum sample size required
Stunting (24-59 m) 55.9 48.9 7 pp 0.8 0.032 NA 1450
Exclusive breast feeding (0–5.9 m) 72.4 79.4 7 pp 0.8 0.026 0.005 600
Minimum dietary diversity (6–23.9 m) 6.3 11.3 5 pp 0.8 0.038 0.125 900
Minimum total sample size required        2950