Group MMP-8 (ng/ml) MMP-8/TIMP-1 
Median (IQR)
Acutecoronarysyndrome
Non-smokers 117.1 (154.7) 0.34 (0.42)
Smokers 109.5 (213.6) 0.39 (0.84)
Unstableangina 
Non-smokers 91.0 (137.4) 0.32 (0.45)
Smokers 52.1 (44.5) * 0.16 (0.20) *
Myocardialinfarction
Non-smokers 121.3 (147.1) 0.34 (0.42)
Smokers 143.6 (284.4) 0.43 (0.97) ‡
Controls 
Non-smokers 41.3 (61.2) 0.14 (0.21)
Smokers 71.7 (92.0) ‡ 0.25 (0.33) ‡
*p<0.05, † p<0.01, ‡ p<0.001 compared to the corresponding non-smoking category by Mann-Whitney test
Table 2: Median serum MMP-8 concentrations and MMP-8/TIMP-1 ratios according to the smoking status.