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Table 3 Conditional logistic regression model of environmental exposures with multiple sclerosis risk

From: Environmental exposures and the risk of multiple sclerosis in Saudi Arabia

Environmental exposures

AORa

95% CI

P value

First child in family

1.68

1.03–2.74

0.038

Family history of MS

5.83

2.83–12

<  0.001

≥ 5 Fast food times/week, yes/no

2.05

1.03–4.08

0.042

History of measles infection, yes/no

3.77

2.05–6.96

<  0.001

≥ 5 Servings of fruits / week, yes/no

0.25

0.16–0.38

< 0.001

Daily coffee intake, yes/no

0.46

0.31–0.68

< 0.001

Sun exposure during primary school, high/low

0.57

0.38–0.85

0.006

Sun exposure during university school, high/low

0.48

0.30–0.76

0.002

  1. aAOR Adjusted odds ratio, included variables in the model are age and gender