Table 1

Demographic and clinical characteristics, full sample (n = 176)

CharacteristicAdults with anxiety or depression*
n = 118
Healthy participants*
n = 58
p value
Age, yr34.08 ± 10.7924.21 ± 8.59< 0.001
Female77.97%62.07%0.031
Race or ethnicity other than white35.59%37.93%0.87
Education, yr14.92 ± 2.2413.60 ± 2.20< 0.001
Anxiety only27.12%0.00%
Depression only22.03%0.00%
Comorbid anxiety and depression50.85%0.00%
PROMIS score
 Anxiety63.54 ± 5.9446.76 ± 6.74< 0.001
 Depression59.34 ± 6.8343.89 ± 6.23< 0.001
Psychotropic medications§
 None69.50%0.00%
 125.42%0.00%
 2–35.08%0.00%
Substance use (past 30 days)
 Cannabis15.25%11.54%0.48
 Alcohol60.17%62.07%0.87
 Tobacco9.26%5.17%0.55
  • PROMIS = Patient-Reported Outcomes Measurement Information System.

  • * Values are mean ± standard deviation or %.

  • We used independent-samples t tests for comparisons of continuous variables between groups, and Fisher’s exact tests for frequency comparisons of categorical variables between groups.

  • Anxiety disorder and related diagnoses included generalized anxiety disorder (n = 89), social anxiety disorder (n = 30), panic disorder (n = 10), posttraumatic stress disorder (n = 6) and obsessive–compulsive disorder (n = 1).

  • § Psychotropic medications included escitalopram (n = 10), bupropion (n = 9), sertraline (n = 8), citalopram (n = 3), fluoxetine (n = 2), paroxetine (n = 2), desvenlafaxine (n = 1), mirtazapine (n = 1), trazodone (n = 1) and lamotrigine (n = 1).