Table 4:

Univariable GEE analysis of baseline variables and PROMIS sleep disturbance across 4 time points (baseline, 2 weeks, 6 months, and 12 months)

Baseline Variable	B (CI)	SE	Test Statistic	p
Univariable GEE
Sociodemographics
Age	−0.15 (−0.21, −0.09)	0.03	22.26	<.001
Education	−0.78 (−1.45, −.011)	0.34	5.21	.022
Non-Caucasian	−0.61 (−3.31, 2.10)	1.38	0.19	.661
Surgical Variables
Surgery/reconstruction type
Breast conserving surgery (Lumpectomy)	Ref	Ref	Ref	Ref
Mastectomy	−0.95 (−3.40, 1.49)	1.25	0.59	.444
Mastectomy with reconstruction	1.70 (−0.06, 3.45)	0.90	3.59	.058
Axillary procedure	3.65 (1.42, 5.88)	1.14	10.30	.001
Treatment variables
Radiation therapy	−0.62 (−2.22, 0.99)	0.82	0.57	.451
Chemotherapy*	1.70 (0.03, 3.33)	0.84	3.98	.046
Breast Cancer Pain questionnaire (BCPQ)
Pain Severity Index (PSI)	0.22 (0.10, 0.35)	0.06	11.87	.001
Opioid use	4.97 ( 2.19, 7.74)	1.42	12.31	<.001
Psychological Variables
Pain Catastrophizing	0.25 (0.13, 0.37)	0.06	15.66	<.001
Anxiety (PROMIS-SF)	0.49 (0.34, 0.65)	0.08	40.20	<.001
Depression (PROMIS-SF)	0.45 (0.26, 0.65)	0.10	21.46	<.001
Negative Affect (PANAS)	0.35 (0.19, 0.50)	0.08	18.23	<.001
Positive Affect (PANAS)	−0.26 (−0.38, −0.15)	0.06	20.41	<.001
Somatization (BSI)	0.89 (00.50, 1.27)	0.20	20.65	<.001