Table 1 Participant characteristics
From: Omega-3 fatty acids attenuate cardiovascular effects of short-term exposure to ambient air pollution
|  | Low omega-3 (n = 28) | High omega-3 (n = 34) | All (n = 62) |
|---|---|---|---|
Age (years), mean (SD) | 37 (8) | 40 (9) | 38 (9) |
Sex, n (%) | |||
 Male | 10 (35.7) | 13 (38.2) | 23 (37.1) |
 Female | 18 (64.3) | 21 (61.8) | 39 (62.9) |
Race, n (%) | |||
 African American | 9 (32.1) | 5 (14.7) | 14 (22.6) |
 Asian | 0 (0) | 3 (8.8) | 3 (4.8) |
 Caucasian | 19 (67.9) | 26 (76.5) | 45 (72.6) |
Smoking history, n (%) | |||
 Never-smoker | 22 (78.6) | 32 (94.1) | 54 (87.1) |
 Ex-smoker | 6 (21.4) | 2 (5.9) | 8 (12.9) |
BMI (kg/m2), mean (SD) | 24.9 (3.3) | 24.4 (3.1) | 24.6 (3.2) |
Omega-3 index (%), mean (SD) | 4.0 (0.8) | 6.8 (1.2)* | 5.5 (1.7) |
SBP (mmHg), mean (SD) | 113.0 (8.8) | 109.9 (9.9) | 111.3 (9.5) |
DBP (mmHg), mean (SD) | 71.5 (6.7) | 69.5 (7.3) | 70.4 (7.1) |