. Author manuscript; available in PMC: 2022 May 1.

Published in final edited form as: J Surg Res. 2021 Jan 8;261:159–166. doi: 10.1016/j.jss.2020.12.019

Table 4 –

Multivariable analysis to identify predictors of decision regret among patients treated for diverticulitis.

Instrument	Total sample mean (SD)	Unadjusted	Adjusted^*
		Estimate (95% CI)	Estimate (95% CI)
DCS total	27 (27)	15 (12, 17)	13 (10, 16)
DCS—informed subscale	31 (31)	14 (11, 17)	12 (10, 15)
DCS—values clarity subscale	28 (30)	13 (11, 16)	12 (9, 14)
DCS—support subscale	25 (27)	13 (10, 16)	12 (9, 15)
DCS—effective decision subscale	23 (26)	15 (12, 17)	13 (11, 16)
SDM-Q9 shared decision-making	56 (32)	−8 (−11, −5)	−6 (−9, −3)
GIQLI GI quality of life	28 (7)	−11 (−14, −7)	−9 (−13, −5)
Decision role concordance, n (%)
No	32 (26%)	—	—
Yes	91 (74%)	−17 (−24, −9)	−13 (−20, −5)

Each instrument was analyzed separately in its own model. For all estimates, P value was <0.001.

Each model used a linear regression technique with Decision Regret Scale score as the outcome.

Adjusted for age, gender, years since treatment for diverticulitis, health status (EQ-5D-3L), and treatment type (surgery versus observation). Higher scores on DCS and its subscales indicate a worse measured state. Lower scores on SDM-Q9 and GIQLI indicate less shared decision-making and GI-related quality of life, respectively.