Table S1.
Descriptive characteristics of the full sample (n = 201)
| Variable | n (%) | Mean (SD) |
| Age, y | 29.76 (10.85) | |
| Female participants | 83 (41.3) | |
| Male participants | 118 (58.7) | |
| Nonwhite participants | 63 (31.3) | |
| White participants | 138 (68.7) | |
| Participant education, years | 14.10 (1.91) | |
| Winter trial participants | 55 (27.4) | |
| Spring trial participants | 67 (33.3) | |
| Summer trial participants | 79 (39.3) | |
| BMI | 27.35 (6.36) | |
| Prechallenge antibody titer ≥4 | 41 (20.4) | |
| Trait positive affect (0–40) | 34.96 (6.91) | |
| Trait negative affect (0–40) | 16.53 (5.66) | |
| Neuroticism (0–40) | 15.31 (7.72) | |
| Composite negative affectivity | 0.00 (1.84) | |
| Parental education | ||
| Less than high school | 4 (2.0) | |
| Technical/vocational (T/V) program | 3 (1.5) | |
| High school or GED | 37 (18.4) | |
| High school and T/V program | 26 (12.9) | |
| Less than 2 y of college | 19 (9.5) | |
| Two or more years of college | 21 (10.4) | |
| College degree | 46 (22.9) | |
| Master's degree | 33 (16.4) | |
| Doctoral/professional degree | 12 (6.0) | |
| Percent of childhood that parents owned home | 68.98 (37.92) | |
| Total mucus weight, g | 9.98 (17.32) | |
| Nasal mucociliary clearance time, min | 3.78 (3.93) | |
| Participants who met criteria for infection | 149 (74.1) | |
| Participants who met criteria for a cold | 60 (29.9) | |
| IL-1β (AUC) | 31.09 (41.82) | |
| IL-6 (AUC) | 58.83 (80.00) | |
| TNF-α (AUC) | 5.95 (9.72) | |
| Composite inflammatory variable | 0.01 (2.56) |