Is it getting better? An analytical method to test trends in health disparities, with tobacco use among sexual minority vs. heterosexual youth as an example

Table 3 Trends in Prevalence of Recent Cigarette Smoking Across Years, within Sexual Orientation Groups

	Ever smoked cigarettes in the last 30 days (%)						Trend 1998 – 2004^b	Trend 2004 – 2010^c
	1998	2001	2004	2007	2010	p-value^a	OR^d (95% CI)	OR^d (95% CI)
Male
OPPOS	56.3	47.0	38.5	34.1	29.5	< .001	0.48 (0.45, 0.51)	0.66 (0.62, 0.71)
BOTH	63.3	54.6	50.9	40.1	38.9	< .001	0.59 (0.49, 0.70)	0.59 (0.50, 0.70)
SAME	52.1	35.0	34.5	35.7	31.0	< .001	0.48 (0.30, 0.76)	0.83 (0.54, 1.25)
Female
OPPOS	63.9	52.9	44.6	36.3	29.5	< .001	0.46 (0.43, 0.48)	0.52 (0.49, 0.56)
BOTH	75.8	67.3	66.7	56.9	50.0	< .001	0.63 (0.46, 0.85)	0.51 (0.40, 0.64)
SAME	55.8	40.0	48.1	31.7	34.3	.006	0.74 (0.35, 1.59)	0.53 (0.30, 0.96)

Note. Data were weighted. OR in bold indicates p < .05
^aChi-square test for trend
^bReference year = 1998
^cReference year = 2004
^dAdjusted for grade
OPPOS Students who had sex with partner(s) of the opposite gender only, BOTH Students who had sex with both male and female partners, SAME Students who had sex with partner(s) of the same gender only, OR Odds ratio, CI Confidence interval

ISSN: 1475-9276