TABLE 1.
Baseline Characteristics of the Sample
| Healthy Comparisons (n = 42) | GAD Without Comorbidity (n = 81) | GAD Plus Comorbidity (n = 83) | F or χ2(df) | p | |
|---|---|---|---|---|---|
| Age, years, mean ± SD | 75.1 (6.3) | 72.6 (7.6) | 70.1 (7.8) | 6.73 (2, 202) | 0.001 |
| Female, % | 66.7% (28) | 66.9% (55) | 69.9% (58) | 0.15 (2) | 0.93 |
| White, % | 92.8% (39) | 86.4% (70) | 77.1% (64) | 6.53 (4) | 0.16 |
| Education, years, mean ± SD | 14.5 (2.9) | 13.7 (2.7) | 14.5 (2.7) | 1.80 (2, 203) | 0.17 |
| Mini-Mental State Exam score, mean ± SD | 28.9 (1.3) | 28.4 (1.4) | 28.3 (1.3) | 2.32 (2, 203) | 0.10 |
| CIRSG, mean ± SD | 8.0 (3.0) | 8.4 (3.5) | 9.3 (4.4) | 1.9 (2, 199) | 0.15 |
| HRSA, mean ± SD | 4.8 (3.7) | 21.9 (3.8) | 23.8 (5.0) | 293.3 (2, 202) | <0.001 |
| HRSD, mean ± SD | 1.8 (2.1) | 11.1 (3.1) | 12.8 (4.2) | 147.9 (2, 203) | <0.001 |
| GADSS, mean ± SD | 1.5 (2.0) | 11.7 (2.6) | 12.6 (3.5) | 215.9 (2, 200) | <0.001 |
| PSWQ, mean ± SD | 27.9 (7.0) | 54.6 (12.5) | 58.2 (12.5) | 86.9 (2, 196) | <0.001 |
Note: GAD: Generalized Anxiety Disorder; MMSE: Mini-Mental Status Exam; CIRSG: Cumulative Illness Rating Scale for Geriatrics; HRSA: Hamilton Rating Scale for Anxiety; HRSD: Hamilton Rating Scale for Depression—17-item version; GADSS: GAD Severity Scale; PSWQ: Penn State Worry Questionnaire; SD: standard deviation.