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Table 2 Hazard ratio (HR) for AD mortality by blood cadmium level at baseline

From: Blood cadmium levels and Alzheimer’s disease mortality risk in older US adults

 

Event no. (%)

Crude HR (95 % CIs)

Adjusted HR (95 % CIs)a

Blood cadmium level

Model 1

Model 2

Cadmium quartile, μg/L

       

  Quartile 1 (≤0.3)

7 (0.7)

1.00

(ref)

1.00

(ref)

1.00

(ref)

  Quartile 2 (0.3–0.4)

11 (1.4)

1.80

(0.55–5.92)

1.83

(0.57–5.86)

1.81

(0.54–6.07)

  Quartile 3 (0.4–0.6)

15 (1.3)

1.99

(0.83–4.75)

1.86

(0.74–4.70)

1.88

(0.73–4.85)

  Quartile 4 (>0.6)

18 (1.6)

2.66

(1.06–6.63)

3.76

(1.43–9.93)

3.83

(1.38–10.59)

p value for trend

  

0.228

 

0.068

 

0.068

  1. Note: CIs = confidence intervals, HR = hazard ratio, ref = reference
  2. aModel 1: Adjusted for age, age square, gender, ethnicity, education, family income, smoking, and serum cotinine level
  3. Model 2: Further adjusted for rice eating, body mass index, diabetes, and hypertension