From: Anthropometric screening approach for obstructive sleep apnea in Japanese men: development and validation of the ABC scale
Original BQ
Modified BQ
ABC scale
Age, BMI, NC
AHI ≥ 15
Sensitivity
Specificity
PPV
NPV
75.2%
41.0%
63.6%
54.7%
85.4%
35.0%
64.3%
70.1%
66.0%
73.8%
61.7%
60.0%
72.0%
63.8%