Table 1 Characteristics of study subjects by sex.
From: The gut microbiome as mediator between diet and its impact on immune function
Characteristics | Males (n = 207) | Females (n = 275) | Pa value |
|---|---|---|---|
Age (y) | 28.7 ± 13.6b | 26.5 ± 11.5 | 0.059 |
Body mass index (kg/m2) | 23.3 ± 2.8 | 22.2 ± 2.6 | < 0.001 |
Smoking | |||
Current smoker | 36 (17.4)b | 27 (9.8) | 0.035 |
Less than 10 cigarettes/d | 23 (63.9) | 19 (70.4) | |
10 and more cigarettes/d | 13 (36.1) | 8 (29.6) | |
Former smoker | 33 (15.9) | 33 (12.0) | |
Never smoker | 122 (58.9) | 189 (68.7) | |
Passive smoker | 15 (7.2) | 24 (8.7) | |
Physical activity level | |||
Less than twice/week | 66 (31.9) | 99 (36.0) | 0.060 |
2–4 times/week | 90 (43.5) | 133 (48.4) | |
5 times or more/week | 50 (24.2) | 43 (15.6) | |
Educational attainment | |||
Below college | 30 (14.5) | 27 (9.8) | 0.152 |
College or current college training | 177 (85.5) | 248 (90.2) | |
