Table 1.

Participant sociodemographic and healthcare access characteristics, sexual behavior status and report of a physical examination in the last year

	Male (N=4328)		Female (N=4911)
	Na	%b	Na	%b
Baseline sociodemographic factors
Age
12–14 years old	1372	42.0	1742	44.8
15–16 years old	1973	39.1	2226	39.9
17–18 years old	983	18.8	943	15.3
Race/ethnicity
White Non-Hispanic	2432	71.1	2655	69.2
Hispanic	698	10.2	756	9.7
Black Non-Hispanic	768	12.2	1101	16.0
Asian or other race	430	6.4	399	5.1
Parent education
<12th grade	555	12.2	722	14.2
≥12th grade	3287	79.0	3574	74.9
Family welfare recipient	938	23.1	1180	27.4
Baseline healthcare access factors
Health insurance last year
Continuous coverage	3183	75.4	3495	72.6
Interrupted coverage	261	6.7	282	6.0
No insurance	422	10.1	551	11.6
Participate in sports	2795	65.1	2780	57.4
Main predictor variable
Sexual behavior status in last year
At baseline	584	12.1	678	13.5
At follow-up	1515	31.6	1804	35.7
Main outcome variable
Physical examination in last year
At baseline	2551	58.8	2576	53.1
At follow-up	2756	64.6	3231	66.6

^aUnweighted;

^bWeighted, accounting for weight and strata