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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