TABLE 9.
Summary of indicator characteristics relative to predicting MPA > 0.50, for NPNL women across all sites
Food group cutoffs | Sensitivity1 | Specificity | False positives, % | False negatives, % | Total misclassified, % | Cutoff yielding closest estimate of % of women with MPA > 0.50 (percentage point difference)2 |
FGI-9R | ||||||
≥3 | 86–100 | 4–32 | 33–69 | 0–4 | 33–69 | |
≥4 | 57–98 | 30–65 | 16–51 | 1–18 | 34–54 | Mozambique (−3), Philippines (+14) |
≥5 | 14–67 | 66–100 | 0–25 | 9–52 | 23–52 | Burkina Faso (+15), Mali (−4), Bangladesh (+1), Philippines (−12) |
≥6 | 2–36 | 94–100 | 0–5 | 18–60 | 21–60 | Burkina Faso (−13) |
FGI-13R | ||||||
≥3 | 86–100 | 2–32 | 33–69 | 0–4 | 34–69 | |
≥4 | 59–98 | 18–62 | 18–53 | 1–15 | 33–56 | Mozambique (+4) |
≥5 | 30–79 | 59–93 | 3–30 | 6–43 | 23–46 | Mali (+12), Bangladesh (+8), Philippines (−5) |
≥6 | 10–50 | 84–100 | 0–9 | 14–55 | 22–55 | Burkina Faso (−6), Mali (−16), Bangladesh (−12) |
≥7 | 2–19 | 95–100 | 0–3 | 19–60 | 21–60 | |
FGI-21R | ||||||
≥4 | 83–98 | 13–46 | 21–58 | 1–9 | 30–61 | Mozambique (+13) |
≥5 | 59–87 | 36–83 | 7–34 | 5–24 | 29–40 | Mozambique (−17), Philippines (+9) |
≥6 | 22–75 | 71–100 | 0–16 | 7–48 | 23–48 | Burkina Faso (+9), Mali (+3), Bangladesh (+2) |
≥7 | 11–40 | 89–100 | 0–6 | 16–54 | 21–54 |
Sensitivity assesses the proportion of all those who have MPA > 0.50 who are identified by the indicator.
The difference is the site-specific prevalence for MPA > 0.50, less the prevalence estimated by the FGI at a given cutoff. When 2 cutoffs yielded estimates that were similar (within 5 percentage points) in distance from “true” prevalence, both are listed.