Table 6.

Predictors of EQ-5D (pre-pandemic and during lockdown)

	Coefficient (95% CI)
Domain and categories	Pre-pandemic (model 1)	During lockdown (model 2)	Mixed effects model with interaction (model 3)
Gender
Male	Reference	Reference	Reference
Female	0.018 (−0.008, 0.045)	0.002 (−0.025, 0.030)	−0.015 (−0.037, 0.007)
Cohort
BSRBR-AS	Reference	Reference	Reference
MAmMOTH	0.092 (0.062, 0.122)	0.054 (0.023, 0.086)	−0.036 (−0.062, −0.011)
BSR-PsA	0.009 (−0.028, 0.045)	−0.014 (−0.053, 0.025)	−0.023 (−0.055, 0.009)
Pre-pandemic sleep problems
0–3	Reference	Reference	Reference
4–8	−0.064 (−0.100, −0.028)	−0.059 (−0.097, −0.020)	0.006 (−0.027, 0.038)
9–20	−0.178 (−0.211, −0.146)	−0.166 (−0.200, −0.131)	0.013 (−0.017, 0.043)
Year of birth
1924–1945	−0.032 (−0.087, 0.023)	−0.062 (−0.120, −0.004)	−0.021 (−0.057, 0.014)
1946–1964	Reference	Reference	Reference
1965–1980	0.020 (−0.033, 0.074)	0.032 (−0.024, 0.089)	0.001 (−0.025, 0.027)
1981–2001	0.021 (−0.067, 0.109)	0.031 (−0.062, 0.124)	−0.009 (−0.044, 0.026)
Deprivation
1 (most deprived)	−0.113 (−0.164, −0.062)	−0.084 (−0.138, −0.030)	0.029 (−0.015, 0.074)
2	−0.046 (−0.091, −0.000)	−0.053 (−0.100, −0.005)	−0.007 (−0.046, 0.033)
3	Reference	Reference	Reference
4	0.016 (−0.020, 0.053)	0.018 (−0.202, 0.056)	0.002 (−0.030, 0.033)
5 (least deprived)	0.030 (−0.007, 0.066)	0.042 (0.003, 0.081)	0.0.13 (−0.019, 0.045)
Urban/rural
Urban	Reference	Reference	Reference
Rural	0.024 (−0.005, 0.052)	0.036 (0.06, 0.066)	0.012 (−0.012, 0.036)
Pre-pandemic physical activity (BSR-PsA cohort only)
Low	−0.085 (−0.172, 0.002)	−0.147 (−0.240, −0.055)	−0.062 (−0.131, 0.007)
Moderate	Reference	Reference	Reference
High	0.035 (−0.066, 0.136)	0.008 (−0.100, 0.115)	−0.028 (−0.108, 0.053)

Values in bold are statistically significant.