Table 5.

Univariate and multivariate linear regression model for mean difference (MD) in Western Ontario Osteoarthritis of the Shoulder score, type of arthroplasty, sex, age, and period of surgery, (n = 417)

	Univariate	Multivariate
Factor	MD (CI)	p-value	MD (CI)	p-value
Type of arthroplasty
SHA	0		0
RTSA	–0.1 (–6.8 to 6.5)	1.0	–1.9 (–9.2 to 5.5)	0.6
Sex
Women	0		0
Men	1.7 (–3.9 to 7.4)	0.6	3.5 (–2.3 to 9.3)	0.2
Age
< 65	0		0
≥ 65	5.8 (0.5 to 11)	0.03	6.6 (1.1 to 12)	0.02
Period of surgery
2006–2010	0		0
2011–2015	2.1 (–3.0 to 7.1)	0.4	2.4 (–3.1 to 8.0)	0.4