2007 National Healthcare Quality Report: Data Tables Appendix--Table 1.98a

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Table 1.98a
Immunization-preventable influenza admissions (excluding transfers from other institutions) per 100,000 population, age 65 and over, United States, 2003 and 2004

Population group		2004		2003
Population group		Rate^a	Standard error	Rate^a	Standard error
Total		44.8	3.1	68.6	3.0
Age	65-69	21.5	2.0	37.5	2.0
	70-74	31.8	2.4	54.1	2.7
	75-79	46.6	3.8	68.2	3.5
	80-84	65.3	5.3	96.6	5.1
	85 and over	99.7	7.4	142.5	7.4
Gender	Male	46.5	3.6	74.5	3.6
Gender	Female	44.1	3.0	65.6	2.8
Median income of patient's ZIP Code	Less than $25,000	27.1	4.7	69.4	11.2
	$25,000-$34,999	41.8	4.1	87.5	6.9
	$35,000-$44,999	48.7	4.9	76.5	4.6
	$45,000 or more	45.1	4.4	55.7	3.4
Location of patient residence	Metropolitan-large	42.9	5.5	47.0	3.5
	Metropolitan-small	37.2	3.5	75.5	7.4
	Micropolitan	50.8	5.8	89.1	7.9
	Noncore	74.1	9.1	134.2	10.4
Region of inpatient treatment	Northeast	43.6	6.8	36.5	5.2
	Midwest	71.0	9.3	104.6	7.3
	South	44.6	4.8	71.7	5.4
	West	16.1	2.7	53.7	5.1

^a Rates are adjusted by age and gender using the total U.S. population for 2000 as the standard population; when reporting is by age, the adjustment is by gender only; when reporting is by gender, the adjustment is by age only.

Source: Agency for Healthcare Research and Quality, Center for Delivery, Organization, and Markets, Healthcare Cost and Utilization Project, Nationwide Inpatient Sample, 2003 and 2004.