. Author manuscript; available in PMC: 2023 Jan 26.

Published in final edited form as: J Oral Facial Pain Headache. 2020;34(Suppl):s73–s84. doi: 10.11607/ofph.2577

Appendix 4.

Pearson Correlation Coefficients Showing Strength of Associations Among Health Measures

	PSQI	PROMIS fatigue score	OSA symptoms	Sum of atopic disorders	BMI (kg/m²)
PSQI	r = 1.000	r = 0.529	r = 0.356	r = 0.115	r = 0.152
		P < .001	P < .001	P = .004	P < .001
	n = 631	n = 578	n = 626	n = 624	n = 621
PROMIS fatigue score		r = 1.000	r = 0.294	r = 0.163	r = 0.044
			P < .001	P < .001	P = .290
		n = 597	n = 591	n = 589	n = 587
Obstructive sleep apnea symptoms			r = 1.000	r = 0.117	r = 0.339
				P = .003	P < .001
			n = 645	n = 643	n = 635
Sum of atopic disorders				r = 1.000	r = 0.024
					P = .543
				n = 643	n = 633
Body mass index (kg/m²)					r = 1.000
Body mass index (kg/m²)					n = 645

PSQI = Pittsburgh Sleep Quality Index; PROMIS = Patient-Reported Outcomes Measurement Information System Fatigue Short Form; OSA = obstructive sleep apnea; BMI = body mass index.