Table 2.

Incidence of hospitalization events by annual income and educational attainment.

	Number of Participants	Hospitalization Events	Person-Time At risk (years)	Incidence Rate (Events/person-year)
Annual Income
<$19,999	35	78	90.3	0.86
$20,000–49,999	100	129	254.8	0.51
$50,000–99,999	97	108	258.1	0.42
>$100,000	64	51	157.8	0.32
Refused/no answer	43	51	108.9	0.47
Educational Attainment
High school/Vocational	117	193	299.6	0.64
Some College	67	81	177.8	0.46
Bachelors	79	96	200.0	0.48
Graduate	76	47	192.6	0.24

Incidence Rate reported as the number of hospitalizations per person-year at risk.