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Table 2 PEI and MYMOP Comprehension, Response and Recall problems

From: Patient understanding of two commonly used patient reported outcome measures for primary care: a cognitive interview study

PROM Cognitive Process Problem Area Total patientsa
PEI (n = 20) Compre-hension Patient expressed uncertainly on how to interpret item 5
Patient left an applicable item blank or ticked n/a 1
Total patients with at least one problem 6
Recall Scored overall improvement since start of illness, not because of doctor. 6
Difficulty keeping the score to a single appointment, within an episode of care 6
Total patients with at least one problem 9
Response Suggested same or less category should be split into two 5
Difficulty choosing between “same or less” / “not applicable” 4
Data entry error made as a result of response scale 5
Total patients with at least one problem 9
MYMOP (n = 17) Compre-hension Difficulty with choosing, or sticking to a single “problem” 4
Symptoms misunderstood as conditions 8
Activity misunderstood as sporting / paid work 3
Total people with at least one problem 8
Recall Difficulty averaging over a week for something that is cyclical or has changed over the week. 3
Total people with at least one problem 3
Response Patient expressed confusion on how to interpret scale 4
Patient interpreted scale inconsistently between questions 2
Total people with at least one problem 6
  1. asome patients reported more than one type of problem in each process
  2. PEI items = 1) Able to cope with life, 2) Able to understand your Illness, 3) Able to cope with your illness, 4) Able to keep yourself healthy, 5) Confident about your health, 6) Able to help yourself
  3. MYMOP items = 1) Two symptoms (individualised) 2) One activity (individualised) 3) Overall well-being