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Table 4 Validity assessment of self-reported receipt of iron-containing supplements in 9 countries, 2007–2016

From: Validity of self-reported receipt of iron supplements during pregnancy: implications for coverage measurement

Country Year Survey Total number of ANC clients observed Observation prevalence Sensitivity Specificity Correctly classified Self-reported prevalence Area under the curve (AUC) Inflation factor
Haiti 2013 SPA 1620 70.9 88.3 66.9 82.1 72.3 0.78 1.02
Kenya 2010 SPA 1409 50.6 82.1 92.8 87.4 45.1 0.87 0.89
Malawi 2013–14 SPA 2068 86.0 95.7 71.0 92.2 86.3 0.83 1.00
Namibia 2009 SPA 859 78.4 87.7 83.3 86.7 72.3 0.86 0.92
Nepal 2015 SPA 1565 63.3 74.7 71.8 73.6 57.6 0.73 0.91
Rwanda 2007 SPA 722 41.8 63.3 90.7 79.2 31.9 0.77 0.76
Senegal 2016 SPA 849 86.8 97.7 89.3 96.6 86.2 0.93 0.99
Tanzania 2014–15 SPA 4009 75.9 91.9 74.8 87.8 75.8 0.83 1.00
Uganda 2007 SPA 779 75.2 85.7 82.9 85.0 68.7 0.84 0.91
Total    13,880 71.8 88.7 79.3 86.0 69.5 0.84 0.97
Nepal 2016–17 NOMS 227 53.7 86.1 34.3 62.1 76.7 0.60 1.43
  1. ANC antenatal care, NOMS Nepal Oil Massage Study, SPA Service Provision Assessment