Table 1.

Baseline Characteristics^a

	Overall (N=229 108)	Transradial Access (n=35 979)	Transfemoral Access (n=193 129)
Demographics
Age in y, median (IQR)	64 (59–70)	64 (59–68)	64 (60–70)
Male	97.0	96.8	97.0
Race
White	79.2	74.8	80.0
Black	13.9	18.1	13.1
Other	6.9	7.1	6.9
Hispanic	4.7	3.6	4.9
BMI, median (IQR)	29.9 (26.4–34.0)	30.3 (26.7–35.1)	29.8 (26.4–33.9)
Past medical history
Past MI	32.7	30.2	33.1
Past CHF	26.4	25.0	26.6
Past CVA	16.1	15.6	16.2
Past PCI	32.4	30.0	32.8
Past CABG	21.8	11.7	23.7
Hypertension	88.2	89.4	88.0
Diabetes mellitus	45.2	46.3	45.0
Dyslipidemia	86.5	86.7	86.5
PAD	18.4	20.4	18.1
COPD	22.2	21.4	22.4
PTSD	17.4	20.8	16.7
Depression	31.5	33.2	31.1
Sleep apnea	20.8	25.1	20.0
Presenting features
Acute coronary syndrome	20.3	18.6	20.6
Heart failure	6.0	5.6	6.1
Cardiogenic shock within 24 hours
Systolic BP on presentation	132 (123–141)	133 (124–142)	132 (123–141)
Heart rate on presentation	69 (61–80)	70 (62–80)	69 (61–79)
Hemoglobin, g/dL	13.7 (12.5–14.7)	13.7 (12.5–14.7)	13.8 (12.6–14.8)
Creatinine	1.0 (0.9–1.2)	1.0 (0.9–1.2)	1.0 (0.9–1.2)
Procedural features
Fluoroscopy time	6.1 (3.5–11.2)	7.2 (4.4–12.3)	6.0 (3.3–11.0)
Contrast volume, mL	100 (70–136)	85.0 (60.0–125.0)	100 (70–140)
LV ventriculography	38.7	33.8	39.6

BMI indicates body mass index; BP, blood pressure; CABG, coronary artery bypass graft surgery; CHF, congestive heart failure; COPD, chronic obstructive pulmonary disease; CVA, cerebrovascular accident; IQR, interquartile range; LV, left ventricular; MI, myocardial infarction; PAD, peripheral artery disease; PCI, percutaneous coronary intervention; PTSD, post‐traumatic stress disorder.

^aData are expressed as percentage of patients for categorical variables, median (interquartile range) for continuous variables.