Table 3

Modelling of 30-day mortality for STEMI and NSTEMI to show the impact of confounding

STEMINSTEMI
Estimated coefficient (95% CI)p ValueEstimated coefficient (95% CI)p Value
Intercept−10.35 (−11.88 to −8.81)<0.001−9.97 (−10.82 to −9.12)<0.001
Age, per 10 years0.91 (0.66 to 1.15)<0.0010.92 (0.79 to 1.06)<0.001
IMD score, per 10 points0.01 (−0.03 to 0.05)0.570.00 (−0.03 to 0.03)0.97
Proportion of females4.88 (3.64 to 6.13)<0.0011.48 (0.65 to 2.31)<0.001
Proportion age missing8.49 (1.18 to 15.64)0.0220.94 (12.63 to 28.97)<0.001
Proportion sex missing0.65 (−0.50 to 1.75)0.251.73 (0.34 to 3.07)0.01
Proportion IMD score missing−0.45 (−1.04 to 0.08)0.120.36 (−0.07 to 0.75)0.09
  • IMD, index of multiple deprivation; NSTEMI, non ST-elevation myocardial infarction ; STEMI, ST-elevation myocardial infarction.