. Author manuscript; available in PMC: 2015 Sep 1.

Published in final edited form as: Int Forum Allergy Rhinol. 2014 Jul 30;4(9):693–701. doi: 10.1002/alr.21364

Table 5.

Correlation coefficients between PSQI, RSDI, and SNOT-22 postoperative change scores.

	RSDI Physical	RSDI Functional	RSDI Emotional	RSDI Total	SNOT-22
Postoperative change scores (n=219):	R_s	R_s	R_s	R_s	R_s
PSQI Sleep quality	0.375^**	0.314^**	0.201^*	0.332^**	0.377^**
PSQI Medication	0.172^*	0.098	0.039	0.119	0.185^*
PSQI Duration	0.128	0.173^*	0.149^*	0.152^*	0.237^**
PSQI Sleep disturbance	0.402^**	0.279^**	0.212^*	0.327^**	0.394^**
PSQI Sleep latency	0.309^**	0.285^**	0.265^**	0.313^**	0.432^**
PSQI Daytime dysfunction	0.441^**	0.460^**	0.455^**	0.503^**	0.411^**
PSQI Sleep efficiency	0.147^*	0.137^*	0.107	0.143^*	0.201^*
PSQI Total score	0.365^**	0.363^**	0.338^**	0.383^*	0.456^**

indicates significant correlation p<0.050.

^**

indicates significant correlation p<0.001.

Spearman’s correlation coefficients (Rs) for nonparametric distributions were used.