Table 3.

Smoking based on clinical reminder and ICD-9 and ICD-10 data compared with survey as “reference standard”

	Survey smoking
	FY 2019 (n = 323)			FY 2017 (n = 227)
Smoking	Never	Former	Current	Never	Former	Current
Clinical reminder
Never (%)	79			71
Former (%)		75			42
Current (%)			91			92
Kappa statistic	.73			.58
Agreement	82%			75%
Weighted kappa statistic	.76			.63
Weighted agreement	90%			84%
ICD-9 and ICD-10
Never (%)	79			82
Former (%)		52			58
Current (%)			54			42
Kappa statistic	.39			.36
Agreement	59%			56%
Weighted kappa statistic	.49			.47
Weighted agreement	78%			76%

Note: Only agreement cell percents are shown because some of the other cell sizes are too small to display because they contain ≤10 individuals. Column percents are shown.

ICD: International Classification of Disease.