Table 2.

CAP Incidence Rates for Active Employees, Early Retirees, and their Dependents: 2009 MarketScan Data

Age and risk categories	All patients with CAP			Patients with CAP managed in the hospital		Patients with CAP in outpatient setting
	Person-years, N	Episodes, N	Incidence per 1000 person-years	Episodes, N	Incidence per 1000 person-years	Episodes, N	Incidence per 1000 person-years
Active employees and their adult dependents
Age, 18–49 yrs	7,267,964	65,045	8.9	8936	1.2	56,109	7.7
Low risk	6,847,855	51,503	7.5	3831	0.6	47,672	7.0
Moderate risk	348,130	10,530	30.2	3536	10.2	6994	20.1
High risk	71,978	3012	41.8	1569	21.8	1443	20.0
Age, 50–64 yrs	3,479,241	49,018	14.1	11,908	3.4	37,110	10.7
Low risk	2,865,264	26,871	9.4	2655	0.9	24,216	8.5
Moderate risk	492,878	15,981	32.4	5882	11.9	10,099	20.5
High risk	121,099	6166	50.9	3371	27.8	2795	23.1
Total: age, 18–64 yrs	10,747,205	114,063	10.6	20,844	1.9	93,219	8.7
Low risk	9,713,119	78,374	8.1	6486	0.7	71,888	7.4
Moderate risk	841,009	26,511	31.5	9418	11.2	17,093	20.3
High risk	193,077	9178	47.5	4940	25.6	4238	21.9
Early retirees and their adult dependents
Total: age, 18–64 yrs	896,885	13,411	15.0	4067	4.5	9344	10.4
Low risk	703,402	6314	9.0	821	1.2	5493	7.8
Moderate risk	154,762	4967	32.1	2026	13.1	2941	19.0
High risk	38,721	2130	55.0	1220	31.5	910	23.5

CAP indicates community-acquired pneumonia.