Table 2 Cox regression analysis: Associations between the number of teeth and all-cause mortality

All-cause mortality

 Number of teeth ≥ 20

(n = 90/1413)

Reference

Reference

  < 20

(n = 129/795)

2.658

(2.030–3.479)

 < 0.001*

1.604

(1.007–2.555)

0.047*

Cancer-related mortality

 Number of teeth ≥ 20

(n = 38/1413)

Reference

Reference

 < 20

(n = 44/795)

2.127

(1.378–3.283)

0.001*

1.719

(0.798–3.700)

0.166

Cardiovascular disease-related mortality

 Number of teeth ≥ 20

(n = 22/1413)

Reference

Reference

 < 20

(n = 33/795)

2.760

(1.609–4.735)

 < 0.001*

1.289

0.570