Table 1.
Comparison of means and SDs for patients with generalized anxiety disorder versus healthy volunteers.
| GAD (N = 26) | HV (N = 18) | t-Value | df | p | |
|---|---|---|---|---|---|
| Age (years) | 36.54 ± 12.55 | 38.00 ± 13.19 | −0.37 | 42 | 0.712 |
| Weight (lb) | 159.27 ± 39.09 | 151.19 ± 42.00 | 0.65 | 42 | 0.517 |
| IQ | 118.65 ± 9.31 | 109.44 ± 14.28 | 2.59 | 42 | 0.013 |
| PSWQ | 64.38 ± 8.64 | 30.06 ± 8.27 | 13.18 | 42 | 0.000 |
| Mean choline | 1.30 ± 0.24 | 1.47 ± 0.19 | −2.55 | 42 | 0.015 |
GAD, generalized anxiety disorder patients; HV, healthy volunteers; df, degrees of freedom; IQ, intelligence quotient; PSWQ, Penn State Worry Questionnaire.