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Table 5 Multivariate Models of MF Exposure and Other Risk Factors/Confounders: Females and Males Combined

From: A case-control study of occupational magnetic field exposure and Alzheimer's disease: results from the California Alzheimer's Disease Diagnosis and Treatment Centers

Risk factor

Odds ratio

95% CI

p-value

High/Medium MF

2.2

(1.2 – 3.9)

< 0.01

Gender (females = 1; males = 0)

1.4

(1.1 – 1.8)

< 0.004

Age-at-exam per unit*

1.8

(1.5 – 2.2)

< 0.0001

Stroke

0.6

(0.4 – 0.9)

< 0.008

High MF

2.8

(0.8 – 9.3)

< 0.10

Gender (females = 1; males = 0)

1.4

(1.1 – 1.8)

< 0.01

Age-at-exam per unit*

1.8

(1.5 – 2.2)

< 0.0001

Stroke

0.6

(0.4 – 0.9)

< 0.01

High/Medium MF

2.0

(1.1 – 3.7)

< 0.03

Gender (females = 1; males = 0)

1.5

(1.1 – 1.9)

< 0.003

Age-at-onset per unit

1.3

(1.1 – 1.5)

< 0.003

Stroke

0.6

(0.4 – 0.97)

< 0.02

High MF

3.3

(0.8 – 14.1)

NS^: > 0.10

Gender (females = 1; males = 0)

1.4

(1.1 – 1.9)

< 0.01

Age-at-onset per unit

1.3

(1.1 – 1.5)

< 0.04

Stroke

0.6

(0.4 – 0.9)

< 0.01

  1. * Units:
  2. Age-at-exam: 1 = 65–74; 2 = 75–84; 3 = 85+
  3. Age-at-onset: 0 = 65-; 1 = 65–74; 2 = 75–84; 3 = 85+
  4. ^ NS = Not Significant