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Table 4 Factors associated with the probability of completing the web-based version of the questionnaire: results of logistic regression*

From: A nationwide study on reproductive function, ovarian reserve, and risk of premature menopause in female survivors of childhood cancer: design and methodological challenges

  OR (95% CI)
Age 1.08 (1.02-1.15)
Educational level (ref. group: High level)  
 Medium 0.65 (0.28-1.53)
 Low 0.06 (0.01-0.52)
Employment status (ref. group: Employed)  
 Student 3.25 (1.00-10.56)
 Unemployed 0.35 (0.10-1.29)
Randomization group (ref. group: Mixed invitation group) 2.85 (1.31-6.21)
  1. OR, odds ratio; CI, confidence interval.
  2. * Derived from Van den Berg MH et al. Using web-based and paper-based questionnaires for collecting data on fertility issues among female cancer survivors: differences in response characteristics. J Med Internet Res. 2011 Sep 29;13(3):e76.