Never smokers (n = 616) | Cumulative smoking exposure (pack-years of smoking)c | P-trendd | |||
---|---|---|---|---|---|
Light smokers [0.1-20.0 pack-years] (n = 745) | Moderate smokers [20.1-40.0 pack-years] (n = 687) | Heavy smokers [> 40.0 pack-years] (n = 438) | |||
Mean ankle-brachial index | |||||
Unadjusted | 1.156 (0.004) | 1.138 (0.004)** | 1.125 (0.004)*** | 1.118 (0.005)*** | <0.001 |
Age-adjusted | 1.156 (0.004) | 1.138 (0.004)** | 1.124 (0.004)*** | 1.119 (0.005)*** | <0.001 |
Multivariate-adjusteda | 1.150 (0.004) | 1.137 (0.004)* | 1.128 (0.004)*** | 1.123 (0.005)*** | <0.001 |
Peripheral arterial diseaseb | |||||
Prevalence, n (%) | 12 (1.9) | 30 (4.0) | 31 (4.5) | 30 (6.8) | |
Unadjusted OR | 1.00 (reference) | 2.11 (1.07-4.16)* | 2.38 (1.21-4.67)* | 3.70 (1.87-7.31)*** | <0.001 |
Age-adjusted OR | 1.00 (reference) | 2.32 (1.17-4.59)* | 2.85 (1.44-5.64)** | 3.69 (1.86-7.31)*** | <0.001 |
Multivariate-adjusteda OR | 1.00 (reference) | 2.15 (1.06-4.38)* | 2.24 (1.08-4.65)* | 2.93 (1.41-6.09)** | 0.008 |