Effects of a support group leader education program jointly developed by health professionals and patients on peer leader self-efficacy among leaders of scleroderma support groups: a two-arm parallel partially nested randomised controlled trial

Table 3 Outcome data immediately post-intervention and 3 months post-intervention (complete data only)

	SPIN-SSLED intervention		Waitlist control
	N	Mean (SD)^a	N	Mean (SD)^a
Post-intervention
Leader self-efficacy (SSGLSS) score	74	166.9 (13.8)	72	150.2 (21.3)
Emotional distress (PHQ-8) score	74	2.9 (3.0)	72	4.1 (4.0)
Burnout (OLBI) score (among experienced leaders)	56	37.9 (3.4)	54	38.6 (4.4)
Volunteer satisfaction (VSI) score (among experienced leaders)	56	40.9 (5.3)	54	35.0 (7.5)
Months post-intervention
Leader self-efficacy (SSGLSS) score	73^b	164.4 (15.1)^b	73	148.4 (23.2)
Emotional distress (PHQ-8) score	74	3.4 (3.5)	72	4.5 (4.6)
Burnout (OLBI) score (among experienced leaders)	57	37.8 (3.0)	53	38.9 (3.8)
Volunteer satisfaction (VSI) score (among experienced leaders)	57	39.7 (6.0)	52	34.6 (7.9)

N number of participants, PHQ-8 Patient Health Questionnaire-8, OLBI Oldenburg Burnout Inventory, SD standard deviation, SSGLSS Scleroderma Support Group Leader Self-efficacy Scale, VSI Volunteer Satisfaction Index
^aStandard deviations do not take into account clustering within intervention groups
^bOne intervention arm participant scored 118 on the Scleroderma Support Group Leader Self-Efficacy Scale (possible scores 32–192) at baseline, 187 post-intervention, and 32 (all items “strongly disagree”) at 3 months post-intervention. We inquired with the participant about the unusual variability in scores, and she indicated that she had intended to score all items as “strongly agree” at 3 months post-intervention (score = 192) but had mistakenly responded backwards. Thus, her score was counted as missing at 3 months post-intervention

ISSN: 1750-1172