Table 2.

Adjusted hazard ratios from the Cox proportional hazard regression

Variable	Haz. Ratio	[95% Conf.	Interval]	P-Value
Cases N = 1185; 468 deaths
Dental Exams in past 10 years (relative to none)
1–10 Exams	0.62	0.49	0.80	< 0.01
10 + Exams	0.63	0.46	0.86	< 0.01
Age	1.01	1.00	1.02	0.03
Female Sex (relative to male)	1.03	0.82	1.30	0.78
White Race (relative to non-white)	0.79	0.63	0.99	0.04
Education > high school (relative to < HS)	0.73	0.58	0.92	0.01
Income (relative to < 20 K)
20k – 50k	1.31	0.98	1.74	0.06
> 50k	1.38	1.01	1.89	0.04
Private Insurance (relative to Medicare, Medicaid, or other)	0.57	0.44	0.73	< 0.01
Smoking > 10 PY (relative to < 10 PY)	1.16	0.88	1.53	0.29
Alcohol use > 1 drink / week (relative to < 1 drink / week)	1.25	0.90	1.72	0.18
T Stage (relative to T1)
T2	1.24	0.96	1.60	0.10
T3	1.41	1.06	1.89	0.02
T4	1.85	1.39	2.45	< 0.01
N1 (vs. N0)	1.52	1.25	1.84	< 0.01
M1 (vs. M0)	8.23	3.79	17.86	< 0.01
Controls N = 1192; 118 deaths
Dental Exams in past 10 years (Relative to none)
1–10 Exams	0.57	0.34	0.94	0.03
10 + Exams	0.60	0.37	0.98	0.04
Age	1.04	1.02	1.07	0.00
Female Sex (relative to male)	0.93	0.58	1.48	0.75
White Race (relative to non-white)	1.30	0.81	2.08	0.28
Education > high school (relative to < HS)	0.87	0.57	1.32	0.50
Income (relative to < 20 K)
20k – 50k	1.48	0.92	2.37	0.10
> 50k	1.08	0.58	2.00	0.81
Private Insurance (relative to Medicare, Medicaid, or other)	0.59	0.32	1.07	0.08
Smoking > 10 PY (relative to < 10 PY)	1.46	0.97	2.20	0.07
Alcohol use > 1 drink / week (relative to < 1 drink / week)	1.64	1.02	2.64	0.04