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Table 2 HR and 95% confidence interval for cancer mortalitya

From: Alveolar bone loss and tooth loss contribute to increase in cancer mortality among older patients

 

Quartile of residual alveolar bone%

 

Loss of teeth

Q1(≥ 0.51)

 

Q2(0.43–0.51)

 

Q3(0.26–0.43)

 

Q4(< 0.26)

 

HR(95% CI)

for trendc

 

HR(95% CI)

HR(95% CI)

HR(95% CI)

HR(95% CI)

HR(95% CI)

Total cancer

(n = 24)

 

(n = 17)

 

(n = 23)

 

(n = 40)

    

Crude

1.00

 

0.75(0.40,1.40)

 

1.08(0.61,1.92)

 

1.93(1.17,3.21)

 

1.29(1.09,1.54)

 

1.03(1.01,1.06)

Adjusteda

1.00

0.73(0.38,1.40)

0.99(0.55,1.80)

1.86(1.11,3.14)

1.27(1.06,1.53)

1.03(1.00,1.05)

P valueb

  

0.346

 

0.979

 

0.019

 

0.009

 

0.015

LOP cancer

(n = 3)

 

(n = 6)

 

(n = 9)

 

(n = 10)

   

Crude

1.00

 

2.14(0.54,8.57)

 

3.31(0.90,12.26)

 

3.66(1.01,13.34)

 

1.46(1.04,2.07)

 

1.03(0.98,1.07)

Adjusteda

1.00

2.88(0.56,14.97)

4.77(1.02,22.35)

4.14(0.87,19.57)

1.45(0.99,2.12)

1.02(0.97,1.07)

P valueb

  

0.208

 

0.047

 

0.073

 

0.054

 

0.381

Digestive cancer

(n = 11)

 

(n = 5)

 

(n = 7)

 

(n = 16)

   

Crude

1.00

 

0.49(0.17,1.40)

 

0.74(0.29,1.91)

 

1.75(0.81,3.79)

 

1.27(0.96,1.69)

 

1.03(0.99,1.07)

Adjusteda

1.00

0.50(0.17,1.46)

0.53(0.18,1.55)

1.76(0.81,3.82)

1.25(0.94,1.68)

1.03(0.99,1.07)

P valueb

  

0.206

 

0.249

 

0.153

 

0.130

 

0.170

Respiratory cancer

(n = 4)

 

(n = 0)

 

(n = 3)

 

(n = 6)

   

Crude

1.00

 

0.00(0.00,999.99)

 

0.89(0.20,4.02)

 

1.83(0.52,6.53)

 

1.42(0.86,2.33)

 

1.04(0.98,1.11)

Adjusteda

1.00

0.00(0.00,999.99)

0.79(0.17,3.60)

1.61(0.45,5.85)

1.33(0.80,2.20)

1.04(0.97,1.11)

P valueb

  

0.997

 

0.758

 

0.466

 

0.274

 

0.296

  1. aAdjusting for age, sex, education levels, BMI, smoking, drinking, hypertension and diabetes
  2. b P-value from multivariate adjusted Cox proportional hazards model
  3. c HR(95% CI) for trend was calculated when severity of alveolar bone loss was treated as continuous variable