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Table 3 Adherence as indicated by various assessment methods during the 30-day intervention period

From: Adherence to home fortification with micronutrient powders in Kenyan pre-school children: self-reporting and sachet counts compared to an electronic monitoring device

Adherence

MEMS (n = 338)

Self-reporting (n = 338)

Sachet count (n = 338)

Coveragea

330 (97.6%)

317 (93.8%)

313 (92.6%)

Missingb

8 (2.4%)

21 (6.2%)

19 (5.6%)

High (≥ 80%, or ≥24 sachets consumed)

200 (60.6%)

266 (83.9%)

270 (86.3%)

Low (< 80%, or 1-23 sachets consumed)

130 (39.4%)

51 (16.1%)

43 (13.7%)

  1. Values indicate n (%), MEMS Medication Events Monitoring System
  2. aNumber of children who consumed at least one of the 30 sachets scheduled during the intervention period
  3. bReasons, by intervention group: MEMS: 6 participants moved residence, 1 participant damaged the electronic device and another lost the electronic device; Self-reporting: 6 participants moved residence; 15 others failed to submit their self-reporting forms; Sachet counts: 6 participants moved residence; 13 others failed to return empty sachets