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Table 4 Associations of oil spill exposure characteristics and nonfatal MI occurring after December 31st 2010. GuLF STUDY 2010–2013

From: Deepwater Horizon oil spill exposures and nonfatal myocardial infarction in the GuLF STUDY

  MI cases/ total Na RRb (95% CI)
  Among workers and non-workers (N = 30,946; 135 cases)
Worked on clean-up
 Yes 112/23362 1.83 (1.13, 2.94)
 No 20/6852 ref
Residential proximity to oil spillc
 Direct/indirect 95/18444 1.17 (0.79, 1.74)
 Away from the spill 37/11770 ref
  Among clean-up workers only (n = 23,896; 114 cases)
Maximum exposure jobd
 Response Work 14/4305 0.61 (0.29, 1.27)
 Operations Work 25/4200 0.97 (0.50, 1.89)
 Clean-up on Water 17/3603 0.76 (0.38, 1.55)
 Decontamination 26/3436 1.66 (0.87, 3.16)
 Clean-up on Land 14/3484 0.88 (0.43, 1.82)
 Administrative Support 16/4334 ref
Work duration
  > 180 days 33/5157 1.99 (0.98, 4.04)
 91–180 days 38/8038 1.35 (0.67, 2.70)
 31–90 days 31/7314 1.27 (0.63, 2.59)
 1–30 days 10/2853 ref
Ever had to stop work due to heatd
 Yes 51/7201 1.85 (1.25, 2.73)
 No 55/13827 ref
Worked near burning oild
 Yes 9/2068 0.93 (0.47, 1.84)
 No 103/21294 ref
Maximum overall THC exposure
  ≥ 3.00 ppm 16/3315 1.34 (0.65, 2.76)
 1.00–2.99 ppm 35/7169 1.05 (0.56, 1.96)
 0.30–0.99 ppm 46/7662 1.65 (0.91, 2.99)
  < 0.30 ppm 15/5190 ref
  1. aNumber of observations included in the fully adjusted model, by exposure status
  2. bRisk ratios (RR) adjusting for age, gender, BMI, education, smoking and residential proximity to the oil spill
  3. cModels adjust for duration of clean-up work in addition to the confounders age, gender, BMI, education, and smoking
  4. dModels adjust for duration of clean-up work in addition to the confounders age, gender, BMI, education, smoking and residential proximity to the oil spill