Table 3.
Extent of misclassification on using different MUAC cutoffs as against the corresponding BMI cutoffs. Women's nutrition study, Bihar, 2016.
| Body mass index (kg/m2) | Mid-upper arm circumference (cm) | Sensitivity and specificity of the chosen cutoff value | Total misclassification (%) | Kappa coefficient (95% CI) | |
|---|---|---|---|---|---|
|
<23.2 |
≥23.2 |
||||
| <18.5 | 193 (31.23) | 53 (8.58) | 0.89, 0.82 | 18.94 | 0.68 (0.62–0.73) |
| ≥18.5 | 64 (10.36) |
308 (49.84) |
|||
|
<26 |
≥26 |
||||
| <23 | 494 (79.94) | 59 (9.55) | 0.91, 0.91 | 11.33 | 0.61 (0.53–0.69) |
| ≥23 | 11 (1.78) |
54 (8.74) |
|||
|
<27.3 |
≥27.3 |
||||
| <25 | 565 (91.42) | 24 (3.88) | 0.95, 0.94 | 4.85 | 0.60 (0.48–0.72) |
| ≥25 | 6 (0.97) |
23 (3.72) |
|||
|
<30.5 |
≥30.5 |
||||
| <30 | 608 (98.38) | 4 (0.65) | 0.99, 0.83 | 0.97 | 0.58 (0.30–0.86) |
| ≥30 | 2 (0.32) | 4 (0.65) | |||
MUAC, mid-upper arm circumference; BMI, body mass index; CI, confidence interval.