Table 7
Sensitivity and specificity for high and increased/high health risk according to waist circumference, based on World Health Organization (WHO) and predicted National Institutes of Health (NIH) protocols, by sex and age group, household population aged 12 to 79, Canada, 2009 to 2011

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Table summary
 This table displays the results of sensitivity and specificity for high and increased/high health risk according to waist circumference. The information is grouped by sex/age group (years) (appearing as row headers), nih predicted, who measured, sensitivity (% true positives), specificity (% true negatives) and specificity (% true negatives), calculated using high risk and increased /high risk units of measure (appearing as column headers).
Sex/Age group (years) NIH predicted WHO measured
Sensitivity
(% true positives)		 Specificity
(% true negatives)		 Sensitivity
(% true positives)		 Specificity
(% true negatives)
High risk Increased /High risk High risk Increased /High risk High risk Increased /High risk High risk Increased /High risk
Boys aged 12 to 19 98 98 100 100 94 97 100 100
Girls aged 12 to 19 86 89 99 99 69 77 100 100
Men 91 95 98 98 86 94 99 98
20 to 39 92 95 100 99 73 88 100 99
40 to 59 86 95 98 98 84 94 99 98
60 to 79 96 96 94 89 96 96 94 90
Women 95 93 95 93 88 85 100 99
20 to 39 88 93 99 96 84 83 100 100
40 to 59 98 90 91 95 89 84 100 99
60 to 79 95 98 95 70 90 92 100 96
Note: Estimates are generated from sub-sample B using NIH measured as the standard.
Source: 2009 to 2011 Canadian Health Measures Survey.