Table 3. Intervention effects, mixed-model analysis among white non-Hispanic participants, aged 6–9 years, 2004–2007 (n=677).

	Average intervention effect				Annual intervention effects
	2005–2007				2005				2006				2007
	b	95% CI		p	b	95% CI		p	b	95% CI		p	b	95% CI		p
Sun Protection Outcomes
Clothinga	0.14	0.03	0.26	0.01	0.15	0.01	0.29	0.03	0.17	0.03	0.31	0.02	0.11	−0.06	0.27	0.20
Hatsa	0.12	0.02	0.22	0.02	0.02	−0.10	0.14	0.78	0.31	0.18	0.43	0.00	0.04	−0.10	0.18	0.54
Shadea	0.12	0.04	0.20	0.002	−0.01	−0.11	0.10	0.91	0.10	0.00	0.20	0.05	0.27	0.16	0.39	<0.001
Sunscreena	0.16	0.07	0.25	<0.001	0.13	0.02	0.23	0.02	0.21	0.10	0.32	<0.00 1	0.15	0.02	0.27	0.02
Midday suna	0.12	0.00	0.23	0.04	0.09	−0.06	0.24	0.23	0.08	−0.08	0.23	0.33	0.18	0.01	0.35	0.04
Sun protection compositea	0.69	0.43	0.94	<0.001	0.41	0.09	0.74	0.01	0.87	0.55	1.19	<0.00 1	0.77	0.43	1.12	<0.001
Sun Exposure Outcomes
Tanning levela	0.13	−0.17	0.44	0.39	0.10	−0.26	0.45	0.59	0.14	−0.22	0.51	0.44	0.17	−0.23	0.56	0.41
Log nevus Count <2 mma	0.02	−0.04	0.08	0.52	−0.01	−0.09	0.07	0.81	0.06	−0.01	0.14	0.11	0.01	−0.06	0.09	0.76
Nevi ≥2 mm (0/1)b	−0.25	−0.53	0.04	0.09	−0.14	−0.48	0.19	0.40	−0.40	−0.77	−0.03	0.03	−0.19	−0.58	0.20	0.33
Nonsevere Sunburn (0/1)b	−0.25	−0.47	−0.04	0.02	−0.47	−0.78	−0.17	0.003	−0.16	−0.46	0.14	0.30	−0.13	−0.44	0.19	0.43
Severe sunburn (0/1)b	−0.52	−1.23	0.19	0.15	0.12	−1.08	1.32	0.85	−0.45	−1.62	0.72	0.45	−1.23	−2.27	−0.18	0.02
Cognitive Mediators
Risk factor awarenessa	0.42	0.28	0.57	<0.001	0.20	0.02	0.38	0.03	0.68	0.51	0.86	<0.001	0.39	0.19	0.58	<0.001
Sun protection barriersa	−0.09	−0.14	−0.05	<0.001	−0.07	−0.12	−0.01	0.02	−0.12	−0.17	−0.06	<0.001	−0.09	−0.15	−0.03	0.003
Melanoma riska	0.03	−0.06	0.12	0.54	0.03	−0.10	0.15	0.67	0.01	−0.11	0.13	0.82	0.05	−0.08	0.17	0.45
Melanoma severitya	−0.04	−0.10	0.02	0.18	−0.04	−0.12	0.03	0.27	−0.06	−0.14	0.02	0.14	−0.02	−0.10	0.06	0.59
Nonmelanoma riska	0.04	−0.06	0.15	0.45	0.01	−0.12	0.14	0.86	0.08	−0.05	0.22	0.23	0.03	−0.11	0.17	0.69
Nonmelanoma severitya	0.01	−0.06	0.07	0.86	0.01	−0.07	0.09	0.79	0.00	−0.08	0.07	0.92	0.01	−0.07	0.09	0.81
Sun protection effectivenessc	0.42	0.13	0.71	0.005	0.04	0.34	0.43	0.83	0.49	0.10	0.87	0.01	0.74	0.34	1.13	<0.001
Clothing stagec	0.64	0.38	0.90	<0.001	0.60	0.24	0.95	<0.001	0.78	0.41	1.13	<0.001	0.55	0.19	0.91	0.003
Midday sun stagec	0.69	0.40	0.97	<0.001	0.62	0.24	1.01	0.002	0 58	0.20	0.97	0.003	0.85	0.46	1.24	<0.001

^aSAS PROC MIXED. Regression coefficients represent the difference between the intervention and control group means on each measure for a given time period relative to baseline in 2004, as tested by the intervention group*year interactions. For the average intervention effect, the three separate group*year interactions were averaged.

^bSAS PROC GLMMIX. Regression coefficients represent the difference between the intervention and control group in the log odds of event occurrence for a given time period relative to baseline in 2004, as tested by the intervention group*year interactions. For the average effect, the three separate group*year interactions were averaged.

^cSAS PROC NLMIXED. Regression coefficients reflect the difference between the intervention and control group in the cumulative (ordinal) logit associated with classification in a higher stage or quartile compared to the lowest for a given time period relative to baseline in 2004, as tested by the group*year interactions. For the average effect, the three separate group*year interactions were averaged.