Table 2.

A: Diagnostic Performance for Body Mass Index using cutoffs of ≥25kg/m2 and ≥30kg/m2 by Age Group and Sex
	BMI≥25kg/m2								BMI≥30kg/m2
	Sensitivity	Specificity	Correctly Classified	PPV	NPV	+LR	−LR	C- index	Sensitivity	Specificity	Correctly Classified	PPV	NPV	+ LR	−LR	C- index
Men
≥60years	80.7	81.4	80.8	96.9	37.0	4.34	0.24	0.81	32.9	99.6	41.0	99.8	17.2	79.7	0.67	0.66
60–69.9years	87.2	76.3	85.7	96.0	47.6	3.68	0.17	0.82	40.3	99.2	48.1	99.7	20.2	51.8	0.60	0.70
70–79.9years	79.5	87.3	80.4	98.0	35.4	6.25	0.24	0.83	30.9	100.0	38.7	100.0	15.7	---	0.69	0.65
80+ years	63.2	86.9	65.8	97.5	22.4	4.80	0.42	0.75	14.5	100.0	23.9	100.0	12.7	---	0.86	0.57
Females
≥60years	76.9	91.6	78.5	98.7	32.2	9.10	0.25	0.84	38.5	98.8	45.1	99.9	88.5	233.4	0.62	0.69
60–69.9years	79.7	91.3	80.7	99.1	28.3	9.12	0.22	0.86	44.5	99.5	49.0	99.9	13.6	96.8	0.56	0.72
70–79.9years	78.8	92.2	80.0	99.0	30.4	10.1	0.23	0.85	37.7	100.0	43.4	100.0	13.9	---	0.62	0.69
80+ years	65.7	91.3	70.8	96.9	39.4	7.59	0.38	0.79	23.4	100.0	38.4	100.0	24.1	---	0.77	0.62

B: Diagnostic Performance for Waist Circumference for Diagnosing Obesity using sex-specific cutoffs by Age Group and Sex
	Waist Circumference ≥102cm in Males or ≥88cm in Females
	Sensitivity	Specificity	Correctly Classified	PPV	NPV	+LR	−LR	C-index
Men
≥60years	59.7	95.5	64.2	98.9	74.4	13.11	0.42	0.78
60–69.9years	64.9	96.0	69.1	99.0	69.7	16.2	0.37	0.80
70–79.9years	59.8	92.6	63.7	98.4	76.4	8.03	0.43	0.76
80+ years	44.0	100	50.3	100.0	81.3	---	0.56	0.72
Females
≥60years	80.5	85.5	81.0	97.9	65.7	5.54	0.23	0.83
60–69.9years	80.6	89.6	81.4	98.9	70.7	7.77	0.22	0.85
70–79.9years	82.1	85.5	82.4	98.3	67.6	5.65	0.21	0.84
80+ years	77.0	81.2	77.8	100.0	83.7	4.08	0.28	0.79

All sensitivity, specificity, correctly classified values and predictive values represent percentages

Abbreviations: C-index: concordance index; BMI: body mass index; C-index: concordance index; +LR: positive likelihood ratio; -LR: negative likelihood ratio