Comparison of prevalence and exposure-disease associations using self-report and hospitalization data among enrollees of the world trade center health registry

Table 2 Chronic disease prevalence and agreement statistics

Disease	Prevalence (SR)^a	Prevalence (SPARCS)	Kappa	Sensitivity	Specificity	Positive Agreement	Negative Agreement
Rheum. Arth.	9.5	0.4	0.04	0.60	0.91	0.05	0.95
Hypertension	36.5	17.9	0.21	0.61	0.69	0.40	0.78
Heart Attack	3.8	1.6	0.31	0.56	0.97	0.33	0.98
Stroke	2.4	1.1	0.35	0.57	0.98	0.36	0.99
Asthma	18.1	6.9	0.23	0.55	0.85	0.30	0.91
Diabetes	12.2	5.8	0.34	0.61	0.91	0.39	0.95
Hyperlipidemia	40.5	11.2	0.10	0.59	0.62	0.26	0.74

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