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Table 1 Participant characteristics

From: The influence of dietary intake of omega-3 polyunsaturated fatty acids on the association between short-term exposure to ambient nitrogen dioxide and respiratory and cardiovascular outcomes among healthy adults

 

Low omega-3 group

(n = 28)

High omega-3 group

(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 / ethnicity 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 (%)

   

 Nonsmoker

22 (78.6)

32 (94.1)

54 (87.1)

 x-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)

  1. Statistical difference between low and high omega-3 groups was derived using Kruskal-Wallis rank sum tests for continuous variables and Fisher’s exact tests for categorical variables *: p < 0.05 for the difference between groups. BMI: body mass index, DBP: diastolic blood pressure, SBP: systolic blood pressure, SD: standard deviation
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Environmental Health

ISSN: 1476-069X