Table 2.
Baseline Demographics Characteristics
| All (n=63) | BBTI (n=31) | CBTI (n=32) | Statistical Findings* | ||||
|---|---|---|---|---|---|---|---|
|
| |||||||
| Age (years), mean (sd) | 55.1 | (14.4) | 56.8 | (13.7) | 53.4 | (15.2) | p = 0.345 |
| Gender, n (%) | |||||||
| Male | 57 | (90.5) | 29 | (93.6) | 28 | (87.5) | p = 0.672 |
| Female | 6 | (9.5) | 2 | (6.4) | 4 | (12.5) | |
| Race, n (%) | p=0.809 | ||||||
| White | 50 | (79.4) | 24 | (77.4) | 26 | (81.3) | |
| Black | 11 | (17.5) | 6 | (19.4) | 5 | (15.6) | |
| Asian | 1 | (1.6) | 1 | (3.2) | 0 | (0.0) | |
| Other | 1 | (1.6) | 0 | (0.0) | 1 | (3.1) | |
| Ethnicity, n (%) | p=0.999 | ||||||
| Hispanic/Latino | 2 | (3.2) | 1 | (3.2) | 1 | (3.1) | |
| Not Hispanic/Latino | 53 | (84.1) | 26 | (83.9) | 27 | (84.4) | |
| Missing | 8 | (12.7) | 4 | (12.9) | 4 | (12.5) | |
| Marital Status, n (%) | p=0.168 | ||||||
| Married | 19 | (30.2) | 7 | (22.6) | 12 | (37.5) | |
| Divorced/Separated | 23 | (36.5) | 15 | (48.4) | 8 | (25.0) | |
| Single/Never Married | 5 | (7.9) | 1 | (3.2) | 4 | (12.5) | |
| Widowed | 15 | (23.8) | 7 | (22.6) | 8 | (25.0) | |
| Other | 1 | (1.6) | 1 | (3.2) | 0 | (0.0) | |
| Education (years), mean (sd) | 13.3 | (3.9) | 13.5 | (3.6) | 13.1 | (4.2) | p=0.743 |
| Military Branch, n (%) | p=0.726 | ||||||
| Army | 31 | (49.2) | 15 | (48.4) | 16 | (50.0) | |
| Air Force | 11 | (17.5) | 7 | (22.6) | 4 | (12.5) | |
| Marine Corps | 8 | (12.7) | 3 | (9.7) | 5 | (15.6) | |
| Navy | 13 | (20.6) | 6 | (19.4) | 7 | (21.9) | |
| Military Era, n (%) | |||||||
| Pre-Vietnam/Vietnam | 28 | (44.4) | 14 | (45.2) | 14 | (43.8) | p=0.866 |
| Post-Vietnam | 16 | (25.4) | 7 | (22.6) | 9 | (28.1) | |
| Persian Gulf/OEF/OIF/OND | 19 | (30.2) | 10 | (32.3) | 9 | (28.1) | |
| Time in Service (years), mean (sd) | 8.2 | (8.5) | 7.9 | (7.8) | 8.5 | (9.2) | p=0.802 |
| Combat | p=0.376 | ||||||
| Yes | 33 | (52.4) | 14 | (45.2) | 19 | (59.4) | |
| No | 29 | (46.0) | 16 | (51.6) | 13 | (40.6) | |
| Missing | 1 | (1.6) | 1 | (3.2) | 0 | (0.0) | |
| Service Connected, mean (sd) | p=0.014 | ||||||
| % | 57 | (31) | 45 | (30) | 70 | (28) | |
Notes:
*
Based on a t-test for continuous variables or chi-square test for categorical variables (or Fisher’s Exact for cells <5).
BBTI, Brief Behavioral Treatment for Insomnia; CBTI, Cognitive Behavioral Therapy for Insomnia; OEF, Operation Enduring Freedom; OIF, Operation Iraqi Freedom; OND; Operation New Dawn.