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Table 2 Results for “Click-MUAC” devices and uniMUAC tape used by mothers/caregivers and clinic staff compared to case-definition applied to the mean of 3 MUAC measurements taken by a research assistant

From: Comparing performance of mothers using simplified mid-upper arm circumference (MUAC) classification devices with an improved MUAC insertion tape in Isiolo County, Kenya

  Test Deviceb Sensitivityc Specificityc Agreementc Kappa c Youden’s Jc
SAMd MSDa 1 93.7% (89.0%, 97.5%) 98.8% (98.0%, 99.5%) 98.2% (97.3%, 98.9%) 0.92 (0.87, 0.95) 92.5% (87.6%, 96.4%)
2 93.8% (89.1%, 97.5%) 98.7% (97.9%, 99.4%) 98.1% (97.2%, 98.9%) 0.91 (0.87, 0.95) 92.4% (87.7%, 96.3%)
3 96.1% (92.3%, 99.2%) 98.8% (98.0%, 99.5%) 98.5% (97.7%, 99.1%) 0.93 (0.89, 0.96) 94.9% (91.0%, 97.9%)
4 100.0% (97.1%, 100.0%) 98.8% (98.0%, 99.5%) 98.9% (98.3%, 99.5%) 0.95 (0.92, 0.98) 98.8% (98.0%, 99.5%)
CSDa 1 92.1% (86.9%, 96.4%) 99.1% (98.5%, 99.7%) 98.3% (97.4%, 99.0%) 0.92 (0.88, 0.95) 91.3% (86.0%, 95.6%)
2 94.6% (90.1%, 98.2%) 98.9% (98.2%, 99.6%) 98.4% (97.5%, 99.1%) 0.92 (0.88, 0.96) 93.5% (89.0%, 97.0%)
3 96.1% (92.1%, 99.2%) 99.0% (98.3%, 99.6%) 98.7% (97.9%, 99.3%) 0.94 (0.90, 0.97) 95.1% (91.1%, 98.1%)
4 100.0% (97.1%, 100.0%) 99.2% (98.7%, 99.8%) 99.3% (98.9%, 99.8%) 0.97 (0.94, 0.99) 99.2% (98.7%, 99.8%)
GAMd MSDa 3 90.7% (87.4%, 93.7%) 96.2% (94.6%, 97.5%) 94.3% (92.9%, 95.7%) 0.87 (0.84, 0.90) 86.8% (83.2%, 90.1%)
4 99.1% (98.0%, 100.0%) 96.5% (95.0%, 97.7%) 97.3% (96.3%, 98.3%) 0.94 (0.92, 0.96) 95.6% (93.7%, 97.2%)
CSD 3 91.8% (88.9%, 94.6%) 97.2% (95.8%, 98.3%) 95.4% (94.0%, 96.6%) 0.89 (0.86, 0.92) 89.0% (85.6%, 92.0%)
4 98.0% (96.4%, 99.4%) 97.4% (96.2%, 98.5%) 97.6% (96.6%, 98.5%) 0.95 (0.92, 0.97) 95.4% (93.4%, 97.2%)
  1. aMSD = Classification by mother/caregiver made using the specified “Click-MUAC” device or uniMUAC tape; CSD = Classification by IMAM clinical staff using the specified “Click-MUAC” device or uniMUAC tape
  2. bNumbers 1, 2 and 3 refer to specific “Click-MUAC” devices. Device 4 is the uniMUAC tape
  3. cPoint estimates and associated 95% confidence intervals of summary measures are reported
  4. dSAM is defined as MUAC < 115 mm; GAM is defined as MUAC < 125 mm. Devices 1 and 2 did not allow for GAM assessment