Table 1:

Descriptive statistics of survey respondents versus non-respondents.

Surgeon Characteristics	Respondents n=203 (24.0%)	Non-Respondents n=646 (76.0%)	p-value
Age
30–39 years old	13 (6.4%)	22 (3.4%)	<0.001
40–49 years old	89 (43.8%)	181 (28.0%)
50–59 years old	66 (32.5%)	224 (34.7%)
60–69 years old	31 (15.3%)	147 (22.8%)
≥70 years old	4 (2.0%)	30 (4.6%)
Missing		42 (6.5%)
Gender
Female	34 (17.0%)	41 (6.4%)	<0.001
Male	168 (83.0%)	600 (92.9%)
Missing		5 (0.7%)
Practice type
University/academic	137 (67.5%)	305 (47.2%)	<0.001
Private/HMO	65 (32.0%)	336 (52.0%)
Missing	1 (0.5%)	5 (0.8%)
Practice Characterization
General Thoracic Surgery	168 (82.8%)	349 (54.0%)	<0.001
Cardiothoracic Surgery with mostly Cardiac Surgery cases	34 (16.7%)	277 (42.9%)
Missing	1 (0.5%)	20 (3.1%)
Years in Practice
0–9 years	63 (31.0%)	149 (23.1%)	0.09
10–19 years	68 (33.5%)	233 (36.1%)
≥20 years	67 (33.0%)	243 (37.6%)
Missing	5 (2.5%)	21 (3.2%)