Table 1.
Baseline characteristics.
| Control yogurt n = 61 | Qingrun yogurt n = 62 | p-value | |
|---|---|---|---|
| Male | 35 (57.4%) | 34 (54.8%) | 0.777 |
| Age (years) | 35.7 ± 7.6 | 37.2 ± 9.2 | 0.310 |
| Weight (kg) | 68.8 ± 14.3 | 67.1 ± 12.2 | 0.479 |
| Height (cm) | 168.5 ± 8.3 | 166.8 ± 7.7 | 0.228 |
| BMI (kg/m2) | 24.0 ± 3.3 | 24.0 ± 3.0 | 0.946 |
| Body temperature (°C) | 36.3 ± 0.3 | 36.3 ± 0.2 | 0.458 |
| Systolic blood pressure (mmHg) | 112.9 ± 9.8 | 115.8 ± 8.2 | 0.081 |
| Diastolic blood pressure (mmHg) | 73.6 ± 6.3 | 75.5 ± 6.2 | 0.095 |
| Number of URTI episodes in the past one year | |||
| 4 times | 19 (31.2%) | 14 (22.7%) | 0.344 |
| 5 times | 32 (52.5%) | 32 (51.6%) | |
| 6 times | 10 (16.4%) | 16 (25.8%) | |
| History of smoking | 20 (32.8%) | 22 (35.5%) | 0.753 |
| History of drinking | 6 (9.8%) | 6 (9.7%) | 0.976 |
Data are presented as mean ± standard deviation or frequency (percentage).
Group deference was evaluated by using chi-squared test or analysis of variance (ANOVA).
URTI: upper respiratory tract infection.