. Author manuscript; available in PMC: 2014 Jul 10.

Published in final edited form as: J Oral Sci. 2013 Mar;55(1):23–28. doi: 10.2334/josnusd.55.23

Table 3. Estimated coefficient and related statistics from the backward logistic regression model.

Question description	Estimate	Standard Error	Wald Chi-Square	P value	Odds ratio (95% CI)
3. I worry about the color of my teeth	-0.333	0.157	4.501	0.034	0.51 (0.28-0.95)
7. I'm bothered by the color of my gum	0.403	0.130	9.547	0.002	2.24 (1.34-3.73)
8. I think my teeth are getting worse despite my daily brushing	-0.376	0.136	7.706	0.006	0.47 (0.28-0.80)
11. I think I can clean my teeth well without using toothpaste	0.562	0.169	10.992	0.001	3.08 (1.58-5.97)
16. I have used a dye to see how clean my teeth are	0.537	0.104	26.801	< 0.0001	2.93 (1.95-4.39)
17. I use a toothbrush which has hard bristles	-0.404	0.108	14.029	< 0.0001	0.45 (0.29-0.68)
20. I have had my dentist tell me that I brush very well	0.360	0.106	11.596	0.001	2.05 (1.36-3.11)