Table 1.

Baseline characteristics of the case and control cohorts.

	All patients	Cases	Controls
	N=34,502	N=4,370	N=30,132
Demographics
Gender (% male)	50.3%	51.0%	50.3%
Race (% white)	67.4%	65.7%	67.6%
Race (% black)	1.7%	3.5%	1.5%
Social History
Smoking (% smoker)	3.4%	4.7%	3.3%
Alcohol use (% used)	45.5%	34.7%	46.7%
Vital Signs
Systolic blood pressure (mean)	128.9	128.6	129.0
Diastolic blood pressure (mean)	73.5	71.5	73.8
Pulse (mean)	73.5	74.9	73.3
Respirations (mean, per minute)	16.7	17.3	16.6