. Author manuscript; available in PMC: 2016 Dec 1.

Published in final edited form as: Pain Med. 2015 Jul 14;16(12):2386–2396. doi: 10.1111/pme.12842

Table 2.

Determinants of Pain Cessation Rate: Univariate Analysis

Characteristic	Hazard Ratio	Hazard Ratio 95% Confidence Intervals	P-Value
Self-Perceived Risk of Addiction^a	0.65	0.42–0.99	0.05
Preoperative Illicit Opioid Use	0.56	0.27–1.16	0.12
Fear of Pain Score^a	0.75	0.52–1.08	0.12
Anxiety Sensitivity Index Score^a	1.25	0.92–1.70	0.16
Any Preoperative Opioid Use	0.68	0.38–1.21	0.19
Legitimate Preoperative Opioid Use	0.67	0.35–1.27	0.22
Family History of Alcohol or Drug Abuse	1.29	0.81–2.06	0.28
Preoperative Sedative Use	0.75	0.35–1.59	0.45
Preoperative Marijuana Use	0.68	0.21–2.23	0.52
Preoperative Pain (Non-surgical Site)^a	1.06	0.64–1.76	0.82
Positive PTSD Symptoms	0.94	0.55–1.62	0.83
SOAPP 24 Score^a	0.98	0.77–1.25	0.85
Beck Depression Inventory-II Score^a	0.98	0.76–1.26	0.86
Tobacco Use (lifetime)	1.05	0.64–1.73	0.86
Preoperative Alcohol Use	0.97	0.61–1.53	0.89
Male Gender	0.98	0.57–1.67	0.94
Preoperative Pain (Surgical Site)^a	1.02	0.63–1.65	0.94
Age^a	1.00	0.73–1.36	1.00

Hazard Ratio between the 25^th and 75^th percentile.