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. Author manuscript; available in PMC: 2010 Sep 22.
Published in final edited form as: Circulation. 2009 Sep 8;120(12):1056–1064. doi: 10.1161/CIRCULATIONAHA.108.827121

Table 3.

Hazard ratios (HR; 95% CI) for all-cause, cardiovascular disease, ischemic heart disease, other cardiovascular, and cancer mortality by tertile of blood lead at baseline.

Tertile of Blood Pb
1st 2nd 3rd p-trend
<0.19 μmol/L (<4 μg/dL) 0.19–0.29 μmol/L (4–6 μg/dL) >0.29 μmol/L (>6 μg/dL)
N 320 561 354
Follow-up, years 2,472 4,431 2,867
Allcause
 Deaths 72 144 110
 Crude Ref 1.11 (0.84–1.47) 1.27 (0.94–1.71) 0.11
 Multivariable 1* Ref 0.81 (0.53–1.25) 0.93 (0.59–1.45) 0.84
 Multivariable 2 Ref 0.69 (0.41–1.19) 0.84 (0.50–1.42) 0.67
All cardiovascular
 Deaths 38 84 63
 Crude Ref 1.23 (0.84–1.80) 1.40 (0.94–2.09) 0.10
 Multivariable 1* Ref 0.86 (0.49–1.51) 0.99 (0.55–1.78) 0.96
 Multivariable 2 Ref 0.63 (0.29–1.38) 0.69 (0.33–1.47) 0.44
  Ischemic heart disease
   Deaths 17 36 29
   Crude Ref 1.19 (0.67–2.11) 1.44 (0.79–2.61) 0.23
   Multivariable 1* Ref 1.13 (0.49–2.62) 1.30 (0.54–3.17) 0.55
   Multivariable 2 Ref 1.02 (0.32–3.21) 1.04 (0.33–3.22) 0.95
  Other cardiovascular
   Deaths 21 48 34
   Crude Ref 1.26 (0.76–2.11) 1.37 (0.80–2.36) 0.27
   Multivariable 1* Ref 0.64 (0.28–1.46) 0.77 (0.34–1.74) 0.65
   Multivariable 2 Ref 0.30 (0.09–1.03) 0.39 (0.12–1.23) 0.23
Cancer
 Deaths 28 57 40
 Crude Ref 1.12 (0.71–1.76) 1.17 (0.72–1.91) 0.52
 Multivariable 1* Ref 0.84 (0.44–1.62) 0.67 (0.33–1.37) 0.26
 Multivariable 2 Ref 1.03 (0.42–2.55) 0.53 (0.20–1.39) 0.15
*

Adjusted for age, smoking (never/former/current & packyears), and education.

Same model, but excluding the 212 participants (72 deaths) who had ischemic heart disease (201) or stroke (12) at baseline.

Multivariable models of cancer excluding 197 participants (40 deaths) with cancer at baseline.