From: Association between smoking and chronic kidney disease: a case control study
Cases | Control | OR† (CI 95%) | P | |||
---|---|---|---|---|---|---|
n | %* | n | %** | |||
Ever regular smoking | ||||||
No | 112 | 56.5 | 251 | 67.7 | 1 (Reference) | - |
Yes | 86 | 43.4 | 120 | 32.3 | 1.6 (1.12-2.29) | 0.009 |
Regular smoking | ||||||
Former | 30 | 15.1 | 43 | 11.6 | 1.04(0.58-1.86) | 0.8 |
Current | 56 | 28.2 | 77 | 20.8 | 1.63(1.08-2.45) | 0.02 |
No. of pack/years, cigarettes | ||||||
1-15 | 34 | 17.1 | 60 | 16.1 | 2.1(0.96-4.57) | 0.06 |
16-30 | 16 | 8 | 29 | 7.8 | 2.04(1.08-3.88) | 0.028 |
> 30 | 36 | 18.1 | 31 | 8.3 | 2.6(1.53-4.41) | 0.000 |