Table 2 Summary of study population demographics, signs/symptoms, and risk factors
Measure | All subjects | PAD negative subjects | PAD positive subjects | |||
|---|---|---|---|---|---|---|
Mean ± SD (N) | 95% CI | Mean ± SD (N) | 95% CI | Mean ± SD (N) | 95% CI | |
or | or | or | ||||
% (n/N) | % (n/N) | % (n/N) | ||||
Age (years) | 67.2 ± 13.8 | 66.1, 68.3 | 67.1 ± 13.9 | 65.9, 68.2 | 68.2 ± 12.9 | 65.2, 71.1 |
(627) | (551) | (76) | ||||
Age group (years) | ||||||
<50 | 10.7% | 8.3%, 13.1% | 10.7% | 8.1%, 13.3% | 10.5% | 3.6%, 17.4% |
(67/627) | (59/551) | (8/76) | ||||
50-59 | 17.7% | 14.7%, 20.7% | 18.5% | 15.3%, 21.8% | 11.8% | 4.6%, 19.1% |
(111/627) | (102/551) | (9/76) | ||||
60-69 | 25.5% | 22.1%, 28.9% | 25.0% | 21.4%, 28.7% | 28.9% | 18.8%, 39.1% |
(160/627) | (138/551) | (22/76) | ||||
70+ | 46.1% | 42.2%, 50.0% | 45.7% | 41.6%, 49.9% | 48.7% | 37.4%, 59.9% |
(289/627) | (252/551) | (37/76) | ||||
Male | 38.0% | 33.7%, 42.3% | 36.6% | 32.0%, 41.1% | 47.1% | 35.2%, 58.9% |
(190/500) | (158/432) | (32/68) | ||||
Claudication | 20.3% | 17.1%, 23.6% | 19.7% | 16.3%, 23.1% | 25.0% | 15.0%, 35.0% |
(122/600) | (104/528) | (18/72) | ||||
Discolored/blue legs | 21.6% | 18.3%, 24.8% | 20.6% | 17.2%, 24.0% | 28.4% | 18.1%, 38.7% |
(133/617) | (112/543) | (21/74) | ||||
Non-healing wound | 11.4% | 8.9%, 13.9% | 11.0% | 8.4%, 13.6% | 14.5% | 6.6%, 22.4% |
(71/622) | (60/546) | (11/76) | ||||
At least 1 sign/symptom | 42.1% | 38.2%, 46.0% | 41.2% | 37.1%, 45.3% | 48.7% | 37.4%, 59.9% |
(264/627) | (227/551) | (37/76) | ||||
High cholesterol | 61.5% | 57.6%, 65.3% | 61.5% | 57.3%, 65.6% | 61.6% | 50.5%, 72.8% |
(375/610) | (330/537) | (45/73) | ||||
Hypertension | 72.5% | 69.0%, 76.1% | 73.0% | 69.2%, 76.7% | 69.4% | 58.8%, 80.1% |
(444/612) | (394/540) | (50/72) | ||||
Diabetes | 47.3% | 43.4%, 51.3% | 46.5% | 42.3%, 50.7% | 53.3% | 42.0%, 64.6% |
(291/615) | (251/540) | (40/75) | ||||
Smoking history | 40.1% | 36.3%, 44.0% | 38.7% | 34.6%, 42.8% | 50.7% | 39.4%, 62.0% |
(250/623) | (212/548) | (38/75) | ||||
Stroke/TIA | 13.2% | 10.6%, 15.9% | 11.5% | 8.8%, 14.2% | 26.0% | 16.0%, 36.1% |
(82/620) | (63/547) | (19/73) | ||||
CAD | 33.3% | 29.6%, 37.0% | 31.6% | 27.7%, 35.5% | 45.9% | 34.6%, 57.3% |
(206/618) | (172/544) | (34/74) | ||||
Number of risk factors | ||||||
0 | 7.8% | 5.7%, 9.9% | 8.2% | 5.9%, 10.5% | 5.3% | 0.2%, 10.3% |
(49/626) | (45/550) | (4/76) | ||||
1 | 13.9% | 11.2%, 16.6% | 13.8% | 10.9%, 16.7% | 14.5% | 6.6%, 22.4% |
(87/626) | (76/550) | (11/76) | ||||
2 | 23.3% | 20.0%, 26.6% | 24.5% | 20.9%, 28.1% | 14.5% | 6.6%, 22.4% |
(146/626) | (135/550) | (11/76) | ||||
3+ | 55.0% | 51.1%, 58.8% | 53.5% | 49.3%, 57.6% | 65.8% | 55.1%, 76.5% |
(344/626) | (294/550) | (50/76) | ||||