Table 3.

Regression data -characteristics (having had surgery vs. not having had surgery)

Predictor	Odds ratio	Lower CI	Upper CI	p-value
Region
EURa	1
US	0.41	0.02	10.01	0.582
Japan	1.22	0.02	98.61	0.929
Age	1.00	0.98	1.02	0.764
Gender
Femalea	1
Male	1.08	0.76	1.55	0.669
BMI	0.99	0.95	1.03	0.637
Symptoms
No anxiety/depressiona	1
Anxiety/depression	1.10	0.71	1.70	0.659
Employment
Working (full time & part time)a	1
Retired	1.36	0.78	2.36	0.28
Other	1.48	0.81	2.72	0.20
Disease severity
Milda	1
Moderate	1.72	0.92	3.21	0.088
Severe	4.09	2.08	8.04	< 0.001
Physician satisfaction with medication
Very satisfieda	1
Somewhat satisfied	0.80	0.45	1.45	0.467
Neither satisfied nor dissatisfied	0.81	0.42	1.55	0.52
Very/Somewhat dissatisfied	0.83	0.39	1.74	0.613

^aReference case