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Table 3 Risk (and 95% confidence intervals) of STEMI and NSTEMI associated with each interquartile range increase in pollutant concentration

From: Ambient fine particulate air pollution triggers ST-elevation myocardial infarction, but not non-ST elevation myocardial infarction: a case-crossover study

    STEMI NSTEMI
Pollutant Lag hours IQR n Odds ratio 95% confidence interval p-value n Odds ratio 95% confidence interval p-value
  0 7.1 338 1.18 1.01-1.38 0.04 339 0.93 0.78-1.09 0.36
  0-2 6.8 335 1.15 0.99-1.35 0.07 338 0.93 0.79-1.10 0.39
PM2.5 0-11 6.1 333 1.12 0.95-1.31 0.17 338 1.00 0.85-1.17 0.99
(μg/m3) 0-23 5.9 329 1.11 0.93-1.32 0.24 335 1.04 0.88-1.22 0.68
0-47 5.4 332 0.94 0.79-1.13 0.53 330 1.02 0.85-1.22 0.81
0-71 5.1 318 0.82 0.67-1.00 0.05 327 1.00 0.83-1.21 0.96
  0-95 5.1 314 0.85 0.69-1.05 0.12 328 1.00 0.82-1.23 0.99
  0 4245 270 1.03 0.95-1.12 0.51 283 0.99 0.90-1.10 0.88
  0-2 4159 275 1.00 0.89-1.13 0.99 284 1.02 0.92-1.13 0.69
UFP 0-11 3475 274 1.05 0.90-1.23 0.53 284 1.04 0.91-1.20 0.60
(particles/cm3) 0-23 3284 274 1.06 0.89-1.26 0.50 276 1.01 0.86-1.18 0.90
0-47 2989 273 1.01 0.84-1.21 0.92 277 0.96 0.80-1.16 0.70
0-71 2834 274 1.03 0.84-1.25 0.80 279 0.93 0.75-1.15 0.49
  0-95 2742 278 1.06 0.86-1.30 0.60 278 0.89 0.71-1.12 0.33
  0 860 270 1.07 0.91- 1.27 0.39 283 0.97 0.82-1.15 0.70
  0-2 871 275 1.03 0.86-1.23 0.75 284 0.96 0.80-1.14 0.62
AMP 0-11 840 274 1.11 0.91-1.36 0.32 284 0.97 0.80-1.17 0.73
(particles/cm3) 0-23 775 274 1.12 0.92- 1.38 0.26 284 0.97 0.81-1.17 0.78
0-47 673 273 1.10 0.90- 1.35 0.33 277 0.94 0.78-1.12 0.48
0-71 615 274 1.04 0.85- 1.27 0.69 279 0.92 0.76-1.10 0.34
  0-95 558 278 1.04 0.86- 1.26 0.67 278 0.89 0.74-1.07 0.21