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Table 2 Proportion of current smokers and TJR by BMI and socioeconomic status

From: Smoking and primary total hip or knee replacement due to osteoarthritis in 54,288 elderly men and women

 

1stquintile (Lowest SES)

2ndquintile

3rdquintile

4thquintile

5thquintile (Highest SES)

N = 9,046

N = 8,848

N = 8,953

N = 8,911

N = 8,856

BMI < 30 (N = 36,305)

     

Current smokers, %

11.5

8.3!!

8.3!!

7.4!!

6.5!!

TJR, %

6.7

6.6

7.7!

6.8

7.4

BMI > =30 (N = 8,309)

     

Current smokers, %

7.6

6.2

5.4!

5.3!

4.9!

TJR, %

11.2

14.2!

12.0

13.0

13.1

All (N = 44,614)

     

Current smokers, %

10.7

7.9!!

7.7!!

7.1!!

6.2!!

TJR,%

7.7

8.1

8.5!

7.9

8.3

  1. Abbreviations: BMI (body mass index), SES (socioeconomic status based on the distribution of Socio-Economic Indices for Areas (SEIFA) in the cohort), TJR (total joint replacement).
  2. ! 0.001 < P value < 0.05; !! P value < 0.001, comparison with Lowest SES (1st SEIFA quintile).