Table 4.

Repeated Measures Analysis for Emergency Department Visits

Variable	Reference level	IRR [95% CI]
Testing site POC/Lab	PST	1.65* [1.47, 1.84]
Age at index	NA	0.99* [0.99, 0.99]
Payer channel Medicare	Commercial	1.39* [1.32, 1.47]
Male	Female	0.81* [0.78, 1.84]
Hypertension	No hypertension	1.11* [1.07, 1.16]
Heart failure	No heart failure	1.14* [1.09, 1.20]
Valvular disease	No valvular disease	0.96* [0.92, 1.00]
Diabetes	No diabetes	1.14* [1.10, 1.19]
Chronic pulmonary disease	No chronic pulmonary disease	1.22* [1.17, 1.28]
Renal disease	No renal disease	1.35* [1.28, 1.43]
Peripheral vascular disease	Peripheral vascular disease	1.11* [1.06, 1.17]
Cancer	No cancer	1.26* [1.19, 1.33]
Obesity	No obesity	1.15* [1.10, 1.20]

IRR, incidence rate ratio. Statistically significant effects (i.e., p < .05) are indicated by *. Age at index included as a continuous variable