Table 1.
Baseline demographics for those assigned to each condition
| Immediately before stressor (n=22) |
10 Minutes Before Stressor (n=22) |
20 Minutes Before Stressor (n=22) |
30 Minutes Before Stressor (n=18) |
p-value* | |
|---|---|---|---|---|---|
| (n=12 receiving control condition at 1st lab) | (n=11 receiving control condition at 1st lab) | (n=11 receiving control condition at 1st lab) | (n=7 receiving control condition at 1st lab) | ||
|
| |||||
| Age: mean (SD) | 37.2 (10.6) | 39.7 (10.9) | 38.1 (16.2) | 37.9 (14.1) | 0.93 |
|
| |||||
| Female subjects: n (%) | 8 (36.4%) | 10 (45.5%) | 14 (63.6%) | 9 (50.0%) | 0.33 |
|
| |||||
| Race: n (%) | |||||
| Caucasian | |||||
| African | 14 (63.6%) | 11 (50.0%) | 16 (72.7%) | 14 (77.8%) | |
| American | 7 (31.8%) | 8 (36.4%) | 4 (18.2%) | 1 (5.6%) | |
| American | 0 (0.0%) | 1 (4.6%) | 1 (4.6%) | 1 (5.6%) | 0.25† |
| Indian | 0 (0.0%) | 1 (4.6%) | 0 (0.0%) | 0 (0.0%) | |
| Asian | 1 (4.6%) | 0 (0.0%) | 1 (4.6%) | 1 (5.6%) | |
| More than one race | 0 (0.0%) | 1 (4.6%) | 0 (0.0%) | 1 (5.6%) | |
| Other | |||||
|
| |||||
| Number of cigarettes per day: mean (SD) | 14.4 (4.4) | 18.5 (8.8) | 14.7 (6.3) | 17.3 (7.1) | 0.14 |
|
| |||||
| Fagerstrom Test for Nicotine Dependence: mean (SD) | 4.5 (2.2) | 5.7 (2.2) | 4.3 (1.8) | 4.7 (2.2) | 0.14 |
|
| |||||
| BMI: mean (SD) | 25.6 (5.1) | 27.7 (7.3) | 25.5 (5.8) | 26.5 (6.5) | 0.61 |
*
The p-values are based on the ANOVA or the Chi-square tests
†
The p-value reflects the comparison of Caucasian, African American and other