Relationship between betel quid chewing and radiographic alveolar bone loss among Taiwanese aboriginals: a retrospective study

Table 4 Multiple regression for RABL

	Estimate (mm)	Standard error	T for H₀: Parameter = 0	P-value
Age	0.05	0.01	3.79	<0.01
Means of PI	0.59	0.13	4.39	<.001
Cumulative amount of areca nut intake (100,000 pieces)
Smoker and chewer	0.34	0.12	2.95	<0.01
Chewer	0.40	0.18	2.22	0.03

ISSN: 1472-6831