Table 4 Mortality RRs (95% CI) associated with a 10 ppb increase in different O3 exposure measures

From: Long-term ozone exposures and cause-specific mortality in a US Medicare cohort

Cause of death

1-h Maxa O3

8-h Maxa O3

24-h Averagea O3

All-cause

1.004 (1.003–1.006)

1.002 (1.001–1.003)

0.990 (0.988–0.991)

  Accidental

1.010 (1.002–1.017)

1.018 (1.009–1.027)

1.025 (1.014–1.036)

All cardiovascular

1.005 (1.003–1.007)

0.997 (0.995–0.999)

0.973 (0.970–0.975)

  Ischemic heart disease

1.008 (1.006–1.011)

0.996 (0.993–0.999)

0.964 (0.960–0.967)

  Cerebrovascular disease

0.993 (0.989–0.997)

0.987 (0.982–0.991)

0.968 (0.962–0.974)

  Congestive heart failure

1.063 (1.055–1.071)

1.072 (1.063–1.080)

1.066 (1.056–1.077)

All respiratory

1.030 (1.027–1.034)

1.033 (1.030–1.037)

1.021 (1.016–1.026)

  COPD

1.072 (1.067–1.077)

1.084 (1.079–1.089)

1.084 (1.077–1.091)

  Pneumonia

0.990 (0.984–0.996)

0.978 (0.972–0.985)

0.935 (0.927–0.944)

All cancer

0.995 (0.993–0.998)

0.993 (0.990–0.995)

0.983 (0.980–0.986)

  Lung cancer

1.015 (1.010–1.020)

1.016 (1.011–1.021)

1.007 (1.000–1.014)

  1. Time period: 2000 – 2008, USA
  2. RR risk ratio, CI confidence interval, IHD ischemic heart disease, CBV cerebrovascular disease, CHF congestive heart failure, COPD chronic obstructive pulmonary disease
  3. Risk ratios are age, gender and race stratified, and adjusted for state of residence and 1-year moving average PM2.5 exposures
  4. aWarm-season average of daily ozone concentrations
Back to article page