Table 3.

Mediated effects of daily pain severity and pain catastrophizing and 95% asymmetric confidence interval (CI)

Predictors	Mediators	a Path ß (SE)	b Path ß (SE)	ab correlation	Point estimate	95% Asymmetric CI
						Lower	Upper
TST		–.30 (.28)	.38 (.14)	–.003	–.1141	–.388	.095
WASO	Pain severity	.03 (.01)	.38 (.14)	.029	.0114*	.002	.025
SOL		.002 (.01)	.38 (.14)	.028	.0008	–.007	.010
TST		–.52 (.29)	.34 (.10)	.089	–.1742	–.420	.016
WASO	Pain catastrophizing	.05 (.02)	.34 (.10)	.186	.0174*	.003	.039
SOL		.00 (.02)	.34 (.10)	.153	.0003	–.013	.016

Note. TST, total sleep time; WASO, wake after sleep onset; SOL, sleep onset latency; *, statistically significant mediated effect.