Table II.

Percentage of adolescents having at least 1 preventive care visit, 2003–2010 MarketScan database

	Pre-recommendation		Transition			Post-recommendation
	2003	2004	2005	2006	2007	2008	2009	2010
Number of adolescents	924 381	1 027 624	1 183 285	1 284 699	1 622 938	1 863 651	2 043 328	1 983 226
Full Sample	24.6	25.3	28.6	33.5	36.3	37.2	39.8	41.1
Sex*
Male	21.9	22.5	25.8	30.4	32.5	33.4	36.2	37.6
Female	27.4	28.1	31.5	36.6	40.1	41.1	43.5	44.6
Age group*
Early (11–14 y)	29.2	29.4	33.4	39.7	43.3	44.5	48.0	50.5
Middle (15–17 y)	25.5	26.0	29.3	34.3	37.0	38.1	40.3	41.8
Late (18–21 y)	19.0	20.0	22.4	25.7	27.7	28.5	30.4	30.5
Region*
Northeast	49.1	47.1	52.5	55.3	58.7	60.4	61.4	61.8
North central	21.7	23.8	27.3	32.2	35.4	36.7	40.0	41.6
South	19.4	20.8	24.2	28.7	31.7	33.3	36.0	36.4
West	24.4	26.1	26.4	31.2	32.9	32.0	32.6	35.8
MSA*
Yes	27.3	27.9	30.8	35.3	38.3	39.0	41.6	42.8
No	13.8	15.7	17.1	22.2	24.1	25.5	27.3	28.6
Insurance type*
FFS	14.1	13.4	15.8	19.0	25.2	24.8	29.3	25.7
Managed care plans
HMO	31.0	31.4	32.7	38.0	41.2	41.6	42.1	44.4
POS	34.2	33.7	36.6	37.6	39.2	40.6	44.0	42.6
PPO	18.5	21.3	25.6	31.2	33.6	34.8	38.4	40.2

Outpatient visits with International Classification of Diseases-9th Revision codes: V20.2, V70.0, V70.3, V70.5, V70.6, V70.8, and V70.9 or Current Procedural Terminology codes between 99381 and 99397 are defined as preventive care visits.

^*Differences within groups are statistically significant at the 1% level during each of the study years.