. 2020 Jun 23;20:988. doi: 10.1186/s12889-020-09109-2

Table 6.

Multiple linear regression with the six interference items as the outcomes for all respondents included (N = 2021) ^a

	General activity			Mood			Working			Relations			Walking			Enjoyment of life
	Adjusted R² = 0.460			Adjusted R² = 0.584			Adjusted R² = 0.516			Adjusted R²⁼ 0.543			Adjusted R² = 0.291			Adjusted R² = 0.589
	B	95% CI	p	B	95% CI	P	B	95% CI	p	B	95% CI	p	B	95% CI	p	B	95% CI	p
Age groups
18–29 years	0.100	−0.339, 0.539	0.655	0.66	0.32, 0.995	0.000	0.04	−0.39, 0.48	0.848	0.43	0.08, 0.77	0.016	− 0.98	−1.42, − 0.54	0.000	− 0.25	− 0.60, 0.11	0.176
30–39 years	0.181	0.173, 0.534	0.316	0.58	0.32, 0.85	0.000	0.27	− 0.08, 0.62	0.126	0.35	0.08, 0.63	0.012	−0.77	−1.12, − 0.42	0.000	− 0.10	−0.39, 0.18	0.473
40–49 years	0.381	0.087, 0.674	0.011	0.54	0.32, 0.76	0.000	0.37	0.08, 0.65	0.013	0.36	0.13, 0.59	0.002	−0.53	−0.83, − 0.24	0.000	− 0.02	− 0.26, 0.22	0.857
50–59 years	0.233	− 0.044, 0.509	0.099	0.13	− 0.08, 0.34	0.213	0.07	−0.20, 0.34	0.610	0.07	−0.15, 0.28	0.546	−0.38	−0.66, − 0.10	0.007	−0.06	− 0.28, 0.17	0.628
60–69 years		−0.036, 0.489	0.091	0.07	−0.30, 0.27	0.502	0.04	−0.22, 0.296	0.771	0.14	−0.07, 0.35	0.187	−0.14	−0.41, 0.12	0.287	0.06	−0.16, 0.27	0.609
70–80 years (ref)	–			–			–			–			–			–
Sex
Women	0.084	−0.085, 0.253	0.331	0.02	−0.11, 0.15	0.75	0.22	0.06, 0.39	0.009	0.02	−0.12, 0.16	0.775	0.06	−0.11, 0.23	0.470	−0.13	−0.27, 0.01	0.066
Men (ref)	–			–			–			–			–			–
Education			0.536	–
Second level, first stage	0.145	−0.111, 0.402	0.267	–			0.11	−0.14, 0.36	0.387	–			0.36	0.10, 0.61	0.007	0.08	−0.13, 0.29	0.446
Second level, second stage	0.026	−0.160, 0.212	0.783	–			0.10	−0.09, 0.28	0.31	–			0.05	−0.14, 0.23	0.611	−0.14	−0.29, 0.02	0.077
Third level (ref)	–			–			–			–			–			–
Comorbidities
0	−0.672	−0.967, −0.377	0.000	−0.07	−0.30, 0.16	0.530	−0.48	− 0.77, − 0.19	0.001	0.26	0.02, 0.50	0.033	−0.81	−1.10, − 0.51	0.000	−0.17	− 0.41, 0.07	0.160
1–2	−0.384	− 0.660, − 0.107	0.007	−0.01	− 0.22, 0.21	0.960	− 0.32	−0.60, − 0.05	0.020	0.34	0.12, 0.56	0.003	−0.78	−1.06, − 0.51	0.000	− 0.18	−0.41, 0.04	0.107
≥ 3 (ref)	–									–			–			–
Depression
PHQ score	0.175	0.127, 0.224	0.000	0.34	0.30, 0.37	0.000	0.26	0.21, 0.31	0.000	0.36	0.32, 0.40	0.000	−0.03	−0.08, 0.02	0.224	0.47	0.43, 0.51	0.000
Symptom burden
MDASI sum	0.075	0.068, 0.081	0.000	0.06	0.06, 0.67	0.000	0.08	0.07, 0.08	0.000	0.06	0.05, 0.06	0.000	0.06	0.05, 0.07	0.000	0.05	0.05, 0.06	0.000

^a Demographic and disease-related variables that were significantly correlated with MDASI sum score in the univariable analyses were entered as covariates