Ascertaining asthma status in epidemiologic studies: a comparison between administrative health data and self-report

Rousseau, Marie-Claude; Conus, Florence; El-Zein, Mariam; Benedetti, Andrea; Parent, Marie-Elise

doi:10.1186/s12874-023-02011-6

Table 3 Agreement between asthma defined from administrative data and self-report among participants, with sampling weights applied

From: Ascertaining asthma status in epidemiologic studies: a comparison between administrative health data and self-report

Asthma in administrative databases^a		Self-report		% Agreement (95% CI)^b	Kappa (95% CI)^b	P pos (95% CI)^b	P neg (95% CI)^b
		Ever had asthma (n = 1640)
		Yes	No
≥ 2 PC within 1 year or ≥ 1 H	Yes	669	130	88.3 (86.8–89.9)	0.57 (0.52–0.63)	0.64 (0.59–0.69)	0.93 (0.92–0.94)
≥ 2 PC within 1 year or ≥ 1 H	No	138	703	88.3 (86.8–89.9)	0.57 (0.52–0.63)	0.64 (0.59–0.69)	0.93 (0.92–0.94)
≥ 2 PC within 2 years or ≥ 1 H	Yes	698	136	89.0 (87.5–90.5)	0.60 (0.55–0.65)	0.67 (0.62–0.71)	0.93 (0.92–0.94)
≥ 2 PC within 2 years or ≥ 1 H	No	109	697	89.0 (87.5–90.5)	0.60 (0.55–0.65)	0.67 (0.62–0.71)	0.93 (0.92–0.94)
≥ 2 PC within 3 years or ≥ 1 H	Yes	707	144	89.1 (87.6–90.6)	0.61 (0.56–0.66)	0.67 (0.63–0.72)	0.93 (0.92–0.94)
≥ 2 PC within 3 years or ≥ 1 H	No	100	689	89.1 (87.6–90.6)	0.61 (0.56–0.66)	0.67 (0.63–0.72)	0.93 (0.92–0.94)
≥ 2 PC within 5 years or ≥ 1 H	Yes	723	150	89.0 (87.5–90.5)	0.61 (0.56–0.66)	0.67 (0.63–0.72)	0.93 (0.92–0.94)
≥ 2 PC within 5 years or ≥ 1 H	No	84	683	89.0 (87.5–90.5)	0.61 (0.56–0.66)	0.67 (0.63–0.72)	0.93 (0.92–0.94)
≥ 2 PC within 30 years or ≥ 1 H	Yes	741	154	89.4 (87.9–90.9)	0.63 (0.58–0.68)	0.69 (0.65–0.74)	0.94 (0.93–0.95)
≥ 2 PC within 30 years or ≥ 1 H	No	66	679	89.4 (87.9–90.9)	0.63 (0.58–0.68)	0.69 (0.65–0.74)	0.94 (0.93–0.95)
		Asthma diagnosed by a physician (n = 1638)
		Yes	No
≥ 2 PC within 1 year or ≥ 1 H	Yes	649	149	90.6 (89.2–92.0)	0.62 (0.57–0.68)	0.68 (0.63–0.72)	0.94 (0.94–0.95)
≥ 2 PC within 1 year or ≥ 1 H	No	113	727	90.6 (89.2–92.0)	0.62 (0.57–0.68)	0.68 (0.63–0.72)	0.94 (0.94–0.95)
≥ 2 PC within 2 years or ≥ 1 H	Yes	676	156	90.9 (89.5–92.3)	0.64 (0.59–0.69)	0.70 (0.65–0.74)	0.95 (0.94–0.96)
≥ 2 PC within 2 years or ≥ 1 H	No	86	720	90.9 (89.5–92.3)	0.64 (0.59–0.69)	0.70 (0.65–0.74)	0.95 (0.94–0.96)
≥ 2 PC within 3 years or ≥ 1 H	Yes	685	164	91.0 (89.6–92.4)	0.65 (0.60–0.70)	0.70 (0.66–0.75)	0.95 (0.94–0.96)
≥ 2 PC within 3 years or ≥ 1 H	No	77	712	91.0 (89.6–92.4)	0.65 (0.60–0.70)	0.70 (0.66–0.75)	0.95 (0.94–0.96)
≥ 2 PC within 5 years or ≥ 1 H	Yes	700	171	90.9 (89.5–92.3)	0.65 (0.60–0.70)	0.70 (0.66–0.75)	0.95 (0.94–0.95)
≥ 2 PC within 5 years or ≥ 1 H	No	62	705	90.9 (89.5–92.3)	0.65 (0.60–0.70)	0.70 (0.66–0.75)	0.95 (0.94–0.95)
≥ 2 PC within 30 years or ≥ 1 H	Yes	718	175	91.3 (90.0-92.7)	0.67 (0.62–0.72)	0.72 (0.68–0.77)	0.95 (0.94–0.96)
≥ 2 PC within 30 years or ≥ 1 H	No	44	701	91.3 (90.0-92.7)	0.67 (0.62–0.72)	0.72 (0.68–0.77)	0.95 (0.94–0.96)

H, hospitalization; PC, physician consultation; P neg, proportion of negative agreement; P pos, proportion of positive agreement
^a Algorithms applied to asthma-related health services in a lookback window of 30 years (1983–2012)
^b All parameters are corrected for the stratified sampling and 95% CIs are estimated based on the actual number of survey respondents
Compilation based on data from the ©Government of Quebec, Institut de la statistique du Québec, Survey on Childhood Environment and the Development of Allergic Diseases, 2012 and Quebec Birth Cohort on Immunity and Health, 2017. Institut de la statistique du Québec is not responsible for compilations or interpretation of results

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ISSN: 1471-2288

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