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Table 4 Illness perception: medication users vs. non-users

From: Illness perception and health care use in individuals with irritable bowel syndrome: results from an online survey

Subscale/Dimension medication users medication non-users  
  n Median n Median U Z p r
Time course 420 21.00 68 21.00 13,437.50 -0.786 0.432 0.04
Consequences 415 19.00 71 17.00 10,595.00 -3.797  < 0.001 0.17
Personal control 425 11.00 73 12.00 14,376.00 -1.004 0.315 0.04
Cure control 420 10.00 71 11.00 12,692.50 -2.014 0.044 0.09
Coherence 420 12.00 68 13.00 13,526.00 -0.701 0.483 0.03
Cyclic occurrence 422 14.00 72 15.00 14,432.00 -0.686 0.493 0.03
Emotional representation 423 19.00 69 17.00 11,557.00 -2.781 0.005 0.13
  1. In the illness perception questionnaire revised, the term “irritable bowel syndrome” was used instead of “illness” in the original questionnaire. r ≥ 0.1 and < 0.3 small effect size, r ≥ 0.3 and < 0.5 moderate effect size, r ≥ 0.5 large effect size [32, 33]