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Table 3 Patient factors associated with permanently switching to oral therapy on follow-up questionnaire

From: Oral vitamin B12therapy in the primary care setting: a qualitative and quantitative study of patient perspectives

  No. (%) of subjects Unadjusted Adjusted*
Patient factor Choosing oral therapy n = 39 Choosing injection therapy n = 13 OR (95% CI) p-value OR (95% CI) p-value
Perceived disadvantages of injections       
   Frequent visits to see MD/nurse
   Agree 27 (96) 1 (4) 27.00 <0.001 35.41 0.005
   Disagree 12 (50) 12 (50) (3.14–231.87)   (2.90–432.70)  
   Travel/parking costs
   Agree 23 (92) 2 (8) 7.91 0.016 8.66 0.036
   Disagree 16 (59) 11 (41) (1.54–40.60)   (1.15–65.30)  
  1. * Adjusted for patient factors at least weakly associated (i.e., p < 0.20) with permanently switching to oral B12 therapy in bivariate analyses: perceived disadvantages of injections (frequent visits to see MD/nurse, travel/parking costs), perceived disadvantage of pills (take too many pills already)