Table 1

Patient demographics of peripheral vascular intervention recipients by dual-eligibility status before and after propensity matching

Prematching cohortsPostmatching cohortsStandardised
Dual eligibleDual eligible
NoYesNoYes
n (%)n (%)n (%)n (%)Differences
N16 259541453125312
Age (years)
 <651439 (8.85)1869 (34.52)1559 (29.35)1525 (28.71)−0.12
 65–746946 (42.72)1794 (33.14)1961 (36.92)1944 (36.60)0.06
 75–845564 (34.22)1193 (22.04)1235 (23.25)1269 (23.89)0.07
 85+2310 (14.21)558 (10.31)557 (10.49)574 (10.81)0.10
Male9675 (59.51)2718 (50.20)2783 (52.39)2827 (53.22)−0.06
White14 256 (87.68)3668 (67.75)3588 (67.55)3616 (68.07)0.20
Medication use
 ACE inhibitor13 561 (83.41)4600 (84.96)4527 (85.22)4500 (84.71)−0.01
 Anticoagulant2698 (16.59)814 (15.04)785 (14.78)812 (15.29)0.05
 Aspirin11 887 (73.11)3855 (71.20)3729 (70.20)3734 (70.29)−0.08
 Beta blocker9854 (60.61)3355 (61.97)3324 (62.58)3276 (61.67)−0.05
 Platelet p2y12 inhibitors6703 (41.23)2313 (42.72)2175 (40.95)2169 (40.83)0.05
 Statin11 466 (70.52)3769 (69.62)3612 (68.00)3641 (68.54)0.09
COPD4101 (25.22)1843 (34.04)1645 (30.97)1629 (30.67)0.07
Diabetes7481 (46.01)3013 (55.65)3172 (59.71)3073 (57.85)−0.19
Rural3726 (22.92)1588 (29.33)1499 (28.22)1460 (27.48)0.08
Smoking status
 Never3679 (22.63)1196 (22.09)1407 (26.49)1406 (26.47)−0.02
 Past8695 (53.48)1911 (35.30)2038 (38.37)2067 (38.91)−0.09
 Current3885 (23.89)2307 (42.61)1867 (35.15)1839 (34.62)0.09
CLI10 652 (65.51)3959 (73.13)3974 (74.81)3983 (74.98)
Claudication5607 (34.49)1455 (26.87)1338 (25.19)1329 (25.02)0.11
Median household income of zip code$58 125 (25 138)$48 398 (21 034.2)$48 940 (18 999)$49 406 (21 236)−0.16
  • CLI, critical limb ischaemia; COPD, chronic obstructive pulmonary disease.