Table 2.

EASi-QoL domain structures: long-form, pre-confirmatory factor analysis (CFA), pre-Rasch, and final 20-item measure.

EASi-QoLLong-form, 42 itemsPre-CFA, 34 itemsPre-Rasch, 27 itemsFinal, 20 items
Physical function
  Item 1 LiftingXXXX
  Item 2 Walking - 1 mileXXXX
  Item 3 Walking - 100 metersX
  Item 4 StairsXX
  Item 5 Standing - 30 minutesXXXX
  Item 6 Standing - 5 minutesX
  Item 7 Sitting - 2 hoursXXX
  Item 8 Sitting - 15 minutesX
  Item 9 Lying down in bedXX
  Item 10 Changing position in bedXX
  Item 11 Getting up from sittingXXXX
  Item 12 Find comfy positionXXXX
  Item 13 Drinking from a small glass or canX
  Item 14 Bending downXXX
  Item 15 ToiletXX
  Item 16 WashingXX
  Item 17 DressingXXXX
Disease activity
  Item 28 Pain - severityXXXX
  Item 29 Pain - durationX
  Item 30 SleepXXXX
  Item 31 EnergyXXXX
  Item 34 StiffnessXXXX
Emotional well-being
  Item 22 Embarrassed or self-conscious—how oftenXXXX
  Item 26 Control over ASXXX
  Item 27 Worry about futureXXXX
  Item 32 ConcentrationXXXX
  Item 33 Drive or motivationXXXX
  Item 38 FrustrationXXX
  Item 39 Embarrassed or self-conscious—amountX
  Item 40 DownheartedXXXX
Social participation
  Item 18 Interfere with workXXXX
  Item 19 Hobbies and pastimesXXX
  Item 20 Social activitiesXX
  Item 21 Family lifeXXXX
  Item 23 Intimate or sexual relationshipsXXX
  Item 24 Travel by carXXXX
  Item 25 Slowing downXXX
  Item 35 Doing errandsX
  Item 36 Jobs around the homeX
  Item 37 Physically activeXXXX
  Item 41 MedicationXX
  Item 42 Quality of lifeXXXX

  • AS: ankylosing spondylitis.