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Table 3 Analysis of the cases and the controls by multivariate conditional logistic regression

From: Associations of lifestyle and diet with the risk of nasopharyngeal carcinoma in Singapore: a case–control study

Variable Adjusted ORa 95% CI P value
Tobacco smoking
 Never 1   
 Current 4.50 2.58–7.86 <0.001
 Former 2.52 1.54–4.12 <0.001
Salted vegetables
 Never/rarely 1   
 Monthly 1.41 0.88–2.26 0.150
 Weekly/daily 4.18 1.69–10.38 0.002
  1. OR odds ratio, CI confidence interval
  2. a Adjusted for educational level of cases and controls