Table 1.
Descriptive variables.
| Measure | Mean ± SD (range) |
|---|---|
| PSS total score | 24.52 ± 8.65 (6.5–38.5) |
| STRAIN total lifetime count of all stressors a | 22.39 ± 15.82 (9–68) |
| STRAIN total lifetime count of acute stressors a | 10.57 ± 9.99 (2–37) |
| STRAIN total lifetime count of chronic stressors a | 11.83 ± 6.30 (5–31) |
| DASS anxiety | 6.30 ± 4.71 (0–16) |
| DASS depression | 6.66 ± 5.32 (0–17) |
| DASS stress | 10.98 ± 7.78 (0.5–29) |
| PSQI average hours sleep per night | 6.97 ± 1.32 (3.5–9) |
| Raw sIL-1β (pg/ml) | 23.51 ± 17.77 (9.56–81.45) |
| Raw sCRP b (pg/ml) | 868.46 ± 890.98 (12.78–2764.14) |
| Ln(sIL-1β) | 2.92 ± 0.62 (1.50–4.20) |
| AFINN total scorec | 0.60 ± 0.78 (−1.57–2) |
| Bing total negative wordsc | 10.83 ± 10.37 (0–42.5) |
| Bing total positive wordsc | 14.77 ± 14.77 (0–56) |
| Bing total affective wordsc | 25.60 ± 24.45 (0–98.5) |
| Bing positive to total affective words ratioc | 0.57 ± 0.21 (0–1) |
| Total words typedc | 725.06 ± 623.32 (1.5–2549) |
| Bing affective to total words ratioc | 0.03 ± 0.01 (0–0.06) |
DASS: Depression, Anxiety, and Stress Scale; PSQI: Pittsburgh Sleep Quality Index; PSS: Perceived Stress Scale; sCRP: salivary C-reactive protein; sIL-1β: salivary interleukin-1β; STRAIN: Stress and Adversity Inventory. AFINN is not an acronym.
a
The STRAIN was only administered once during the study, as it assesses lifetime stress exposure, so the resulting scores are not averaged.
b
Transforming the CRP values did not improve skew; so, the raw values were used for analyses.
c
Three participants did not have week 1 text data recorded, so only week 2 is reported (instead of an average across weeks) for those participants.