Table 5.
Comparing false-negative (FN) and false-positive (FP) rates between various subgroups of participants and studies
| MUAC cut-off (cm) | All data combined | Low prevalence studies removed* | LMIC† only | Males | Females | HIV-negative | HIV-positive | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| FN‡(%) | FP§(%) | FN (%) | FP (%) | FN (%) | FP (%) | FN (%) | FP (%) | FN (%) | FP (%) | FN (%) | FP (%) | FN (%) | FP (%) | |
| 23·0 | 35 | 7 | 28 | 10 | 28 | 10 | 46 | 5 | 25 | 6 | 58 | 2 | 29 | 6 |
| 23·5 | 25 | 11 | 19 | 16 | 19 | 17 | 36 | 8 | 17 | 10 | 43 | 3 | 22 | 10 |
| 24·0 | 16 | 17 | 12 | 24 | 12 | 24 | 24 | 13 | 12 | 15 | 32 | 7 | 15 | 17 |
| 24·5 | 10 | 23 | 7 | 32 | 8 | 32 | 16 | 19 | 8 | 19 | 24 | 9 | 11 | 22 |
| 25·0 | 7 | 27 | 4 | 43 | 5 | 37 | 11 | 22 | 5 | 26 | 20 | 13 | 9 | 19 |
| 25·5 | 4 | 33 | 2 | 51 | 3 | 45 | 6 | 28 | 3 | 32 | 16 | 16 | 4 | 24 |
LMIC, low- and middle-income countries; MUAC, mid-upper arm circumference.
*
Excludes studies with low (<10 %) prevalence of individuals with BMI < 18·5 kg/m2 (ARG, GUI-TBC, MAL-HNW, NAM, SAF, USA-HIV and USA-IDU) or a low prevalence (<11 %) of individuals with normal to high BMI (MAL-HWW, ZAM).
†
Excludes the following upper-middle- and high-income countries: ARG, NAM, SAF, USA-HIV and USA-IDU.
‡
FN = percentage of individuals with BMI < 18·5 kg/m2 who are missed using the MUAC cut-off.
§
FP = percentage of individuals with BMI ≥ 18·5 kg/m2 who are referred for further screening.