Table 3.

Parameters in the multivariate Cox regression analysis (p value, hazard ratio, 95% CI = 95% confidence)

Parameter	p value	Hazard ratio (95% CI)
Type of disability
Physical vs. intellectual (= 1)	0.001	HR = 50.932 (4.72–549.86)
Physical vs. both intellectual and physical (= 1)	0.003	HR = 16.197 (2.54–103.20)
Both intellectual and physical vs. intellectual (= 1)	0.016	HR = 3.145 (1.24–7.99)
Nutrition
Pureed/liquid food vs. without restrictions (= 1)	0.480
Pureed/liquid food vs. feeding tube (= 1)	0.087
Feeding tube vs. without restrictions (= 1)	0.468
Removable partial denture
Yes vs. no (= 1)	< 0.001	HR = 3.013 (1.61–5.64)
Postoperative checkup within 3 months
Yes vs. no (= 1)	0.691
Tooth type
Incisor vs. premolar (= 1)	0.013	HR = 2.281 (1.19–4.39)
Molar vs. incisor (= 1)	0.402
Molar vs. premolar (= 1)	0.017	HR = 1.693 (1.10–2.61)
Load bearing restoration
Yes vs. no (= 1)	0.182
Age	0.669
Decayed teeth	0.175
Missing teeth	0.232
DMFT score	0.798

Significant p-values are printed in italics