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Table 2 Symptoms Reported During Concept Elicitation (Waves 1 and 2)

From: Symptoms and impacts in anemia of chronic kidney disease

Symptom Spontaneously Reported
n/N (%)a
Reported After Probing
n/N (%)b
Total Mentions of a Concept
Proportion spontaneous
n/N (%)c
Proportion after probing
n/N (%)d
Feeling tired 22/28 (79) 5/6 (83) 22/27 (81) 5/27 (19)
Shortness of breath 11/28 (39) 5/6 (83) 11/16 (69) 5/16 (31)
Feeling weak/lacking strength 10/28 (36) 0/0 10/10 (100) 0/10 (0)
Gastrointestinal symptoms 5/28 (18) 6/10 (60) 5/11 (45) 6/11 (55)
Difficulty sleeping 4/28 (14) 6/12 (50) 4/10 (40) 6/10 (60)
Difficulty remembering things 0/28 (0) 12/24 (50) 0/12 (0) 12/12 (100)
Difficulty concentrating 0/28 (0) 9/24 (38) 0/9 (0) 9/9 (100)
Restless legs 0/28 (0) 5/14 (36) 0/5 (0) 5/5 (100)
  1. an represents the total number of participants who spontaneously mentioned the symptom and N represents all patients who participated in the concept elicitation interviews
  2. bn represents the number of participants who reported experiencing the symptom and N represents the number of participants probed regarding the symptom
  3. cn represents spontaneous mentions of the symptom and N represents the total mentions of the symptom (spontaneous and probed)
  4. dn represents mentions of the symptom after probing and N represents the total mentions of the symptom (spontaneous and probed)