Table 1.
Participant Demographics
| No Infarct on Imaging (N=203) | Infarct on Imaging (N=25) | Canadian Population 2011 | |
|---|---|---|---|
| Age (y) (missing=0) | |||
| Mean | 43.4 (SD 9.2) | 48.9 (SD 9.4) | |
| Range | 23.3–63.2 | 33–62.4 | |
| Sex (missing=0) | |||
| Male | 156/203 (77%) | 20/25 (80%) | 51% |
| Race‐ethnicitya (missing=0) | |||
| White | 118/203 (58%) | 15/25 (60%) | 67.3% |
| First Nations | 63/203 (31%) | 6/25 (24%) | 2.1% |
| First Nation Mixed | 12/203 (6%) | 1/25 (4%) | 0.9% |
| Other | 9/203 (4%) | 3/25 (12%) | 30.1% |
| Monthly income, Canadian $ (missing=4) | |||
| Median | $871 (SD 538) | $919 (SD 476) | $2150b |
| Range | $200–$5600 | $235–$2700 | |
| History of homelessness (missing=3) | |||
| Yes | 154/201 (76.6%) | 11/24 (46%) | |
| Total y of homeless (missing=4) | |||
| Mean | 3.4 (SD 5.4) | 1.8 (SD 3.16) | |
| Range | 0–39 y | 0–11.4 y | |
| Highest educational attainment (missing=0) | |||
| 0–8 y | 39/203 (19%) | 6/25 (24%) | 6.4% |
| 8–11 y | 112/203 (55%) | 14/25 (56%) | 13.4% |
| 12 y | 28/203 (14%) | 4/25 (16%) | 19.8% |
| >12 y | 24/203 (12%) | 1/25 (4%) | 60.4% |
| Body mass index (missing=4) | |||
| Mean | 22.8 (SD 4.2) | 23.6 (SD 3.6) | |
| ≥25 | 45/203 (22%) | 7/25 (28%) | 34.1% |
| ≥30 | 0 | 0 | 18.4% |
| HgA1c (missing=8) | |||
| ≥6.5% | 3/195 (1.5%) | 1/25 (4%) | |
| ≥7.0% | 2/195 (1%) | 1/25 (4%) | |
| Self‐reported diabetes mellitus (missing=8) | |||
| Yes | 7/196 (3.6%) | 3/24 (13%) | 6.1% |
| LDL cholesterol in mmol/L (missing=11) | |||
| Mean | 2.2 (SD 0.83) | 2.5 (SD 0.96) | |
| ≥2 mmol/L | 99/192 (52%) | 16/25 (64%) | |
| ≥3.5 mmol/L | 14/192 (7.3%) | 3/25 (12%) | |
| Self‐reported dyslipidemia (missing=9) | |||
| Yes | 3/195 (1.5%) | 1/24 (4.2%) | |
| Systolic blood pressure (missing=45) | |||
| Mean (mm Hg) | 115 (SD 13.8) | 117 (SD 13.1) | |
| ≥130 mm Hg | 22/164 (13.4%) | 3/19 (16%) | |
| ≥140 mm Hg | 8/164 (4.8%) | 1/19 (5%) | |
| Diastolic blood pressure (missing=45) | |||
| Mean (mm Hg) | 75 (SD 11.3) | 78 (SD 8.5) | |
| ≥80 mm Hg | 47/164 (25.7%) | 9/19 (47%) | |
| ≥90 mm Hg | 16/164 (8.7%) | 2/19 (10.5%) | |
| Self‐reported hypertension (missing=9) | |||
| Yes | 12/199 (6%) | 4/25 (16%) | 17.6% |
| Pack y (missing=1) | |||
| Mean | 19.6 (SD 15.9) | 27.8 (SD 26.6) | |
| Range | 0–111 | 0–109 | |
| >10 pack‐y | 138/202 (68%) | 19/25 (76%) | |
| Active smoker (missing=1) | |||
| Yes | 191/202 (94.6%) | 22/25 (88%) | 19.9% |
| History of regular use of injected drugs (missing=1) | |||
| Yes | 165/202 (81.7%) | 22/25 (88%) | |
| History of alcohol dependence (missing=1) | |||
| Yes | 95/202 (47%) | 15/25 (60%) | |
| History of marijuana dependence (missing=1) | |||
| Yes | 92/202 (46%) | 11/25 (44%) | |
| HIV status (missing=0) | |||
| HIV not on ARV | 13/203 (6.4%) | 1/25 (4%) | |
| HIV on ARV | 22/203 (11.3%) | 3/25 (8%) | |
| Hepatitis C virus status (missing =9) | |||
| Ab pos, PCR neg | 35/195 (18%) | 3/24 (13%) | |
| PCR positive | 99/195 (51%) | 13/24 (54%) | |
| Hepatitis B virus status (missing=3) | |||
| Core ab positive | 74/200 (38%) | 12/25 (48%) | |
| Surface ag positive | 3/200 (1.5%) | 0/25 | |
| Modified Charlson score (missing=0) | |||
| Mean | 3.47 (SD 2.99) | 3.44 (SD 2.79) | |
| 0 | 35/203 (17%) | 3/25 (12%) | |
| ≥5 | 60/203 (30%) | 7/25 (28%) | |
| Global assessment of function (missing=0) | |||
| Mean | 38 (SD 35) | 35 (10.2) | |
| Range | 15–70 | 19–58 | |
| Estimate of IQ (WTARb) (missing=5) | |||
| Mean | 96 (SD 8.6) | 97 (SD 9.9) | |
| Range | 75–122 | 78–113 | |
| 10‐y Framingham CVD (excluded 23 for age ≤30 y, missing component 38) | |||
| Mean | 10.9 (SD 8.5%) | 15.4 (SD 13.0%) | |
| <10% | 92/148 (62%) | 8/19 (42%) | |
| 10%–20% | 56/148 (38%) | 11/19 (58%) | |
| >20% | 22/148 (15%) | 5/19 (26%) | |
| Range | 1.2%–44.4% | 1.7%–48.9% | |
HgA1c indicates hemoglobin A1c; ARV, antiretroviral drugs; CVD, cardiovascular disease; PCR, polymerase chain reaction; WTAR, Wechsler Test of Adult Reading.
a
Reported for Vancouver, BC; proportions of individuals by ethnicity are highly variable between different Canadian cities.
b
Based on annual income of unattached individuals.