Table 1. Socio-demographic characteristics of the study population
Medicine
N=490
%		 Other Professions
N=415
%		 p value*
Age (years)
18-24
25-29
30-39
≥40 		77.9
17.9
3.8
0.2 		81.4
13.2
2.9
1.4 		0.32
Ethnicity
White
Afro-descendent
Other 		84.2
7.5
8.2 		72.7
17.5
9.6 		<0.0001
<0.0001
Sexual orientation
Heterosexual
Homosexual
Bisexual
Other 		80.8
3.6
13.8
1.6 		65.0
4.3
27.9
2.6 		<0.0001
0.78
<0.0001
Household income (monthly in minimum wages)
≤ 2
3-5
6-10
>10 		15.9
24
25.3
34.6 		45
33
12.7
9.1 		<0.0001
0.62
<0.0001
<0.0001
Physical activity (IPAC)
Very active
Active
Insufficiently active
Sedentary 		29.1
36.7
13.2
20.8 		19.2
26.9
17.8
35.9 		0.0004
0.00036
0.42
<0.0001
Smoking cigarettes/day
I do not smoke
<10
≥10 		96.1
2.8
1.0 		89.1
9.1
1.6 		<0.0001
Alcohol use (CAGE)
I do not drink
1x/month
2-3x/month
1x/week
2x/week
3-4x/week
Daily use 		26.1
22.4
32.0
12.4
5.7
1.2
0 		32
19.2
32
8.6
2.8
0
0 		0.061
Illicit substance use
Yes 		24.7 23.4 0.022

IPAQ: International Physical Activity Questionnaire; CAGE: Cut down, Annoyed by criticism, Guilty e Eye-opener.
* Chi-Square test.