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Table 4 Selection of outcomes in Delphi study

From: Methodology in core outcome set (COS) development: the impact of patient interviews and using a 5-point versus a 9-point Delphi rating scale on core outcome selection in a COS development study

  Round 1 Round 2 Round 3
Outcome 5PT 9PT 5PT 9PT 5PT 9PT
Pain behaviour In Out Out Out
Pain character/type In Out In In Out Out
Pain frequency In In In In In In
Pain intensity/severity In In In In In In
Pain location In In In In In In
Full pain recovery In In In In In Out
Function/disability/activity limitation In In In In In In
Physical activity levels/exercise limitations In In In In In In
Need for mobility aid In Out In Out Out
Perceived body imbalance Out Out Out Out
Sexual functioning In Out In Out In
Health related quality of life In In In In In In
Health status In In In In In Out
Family life impact In In In In In Out
Social life impact In In In In In Out
Patient satisfaction with life In In In In In Out
Patient satisfaction with treatment In In In In In In
Patient expectations of treatment In In Out In In
Anxiety In In In In In Out
Confidence In In Out Out
Depression In In In Out In
Dependence on others In In Out Out
Emotional symptoms In In In Out In
Fear avoidance In In In In In Out
Frustration Out Out Out Out
Pain catastrophizing In In In Out In
Self-efficacy In In In Out In
Well-being In In Out Out
Fatigue In Out Out Out
Sleep function In In In In In Out
Work ability In In In In In In
Work performance In In In Out Out
Analgesia use In Out Out Out
Cost In In Out Out
Healthcare utilisation In In In Out Out
Anthropomorphic outcomes Out Out Out Out
Body flexibility Out Out Out Out
Functional mobility In Out Out Out
Gait endurance In Out In Out In
Gait speed Out Out Out Out
New-born outcomes Out Out Out Out
Outcomes from pain provocation/location tests In Out Out Out
Posture In Out Out Out
Pubis symphysis mobility Out Out Out Out
Maternal pregnancy outcomes Out Out Out Out
Muscle endurance Out Out Out Out
Muscle strength In Out Out Out
Recovery of symptoms In In In In In In
Step length Out Out Out Out
Surgical outcomes Out Out Out Out
Urinary Incontinence In In In Out In
Maternal adverse outcomes/undesirable effects In Out In Out Out
Unborn/born adverse outcomes/ undesirable effects Out Out Out Out
Breathing function Out Out
Clinical findings on motion palpation/joint play of pelvic girdle joints Out Out
Coping strategies/coping styles In Out Out
Global perceived improvement/global rate of change In Out Out
Goal attainment In Out Out
  Round 1 Round 2 Round 3
Outcome 5PT 9PT 5PT 9PT 5PT 9PT
Likelihood of planning subsequent pregnancies Out Out
Motor control/movement strategies/ movement patterns In Out In
Muscle tightness Out Out
Need for additional supports Out Out
Outcomes from functional tests In Out
Pain duration/pain pattern In In In In
Patients beliefs about pain/meaning of complaints to patient In Out Out
Patient understanding/knowledge of PGP In Out Out
Postural observation Out Out
Symptoms during menstruation Out Out
Possible outcomes in each round n 53 53 68 68 37 20
Total “In” each round n 41 29 37 20 24 11
% “In” each round 77% 55% 54% 29% 65% 55%
Z-score (outcomes “in”) 2.46 2.95 0.73
  1. Selection of outcomes on the 5-point scale survey version and the 9-point scale survey version for all Delphi rounds based on the criterion of ≥70% participants scoring the outcome as “important” [4+ (5-point scale) or 7+ (9-point scale)] for 3 of the 5 stakeholder groups, inclusive of the patient representative group
  2. - Denotes the outcome was not rated in that particular Delphi round