Characteristic	Number	Estimated proportion (95% CI)
Patient Health Questionnaire 9 (PHQ‐9)
Total score, mean (95% CI)	6.8 (6.6–7.0)
Moderate/moderately severe/severe (clinically significant) symptoms (score, ≥ 10)	3791	27.6% (26.1–29.1%)
Mild symptoms of depression (score, 5–9)	3440	26.5% (25.1–27.8%)
Item 9: Thoughts of being better off dead or of self‐harm	1692	14.6% (13.5–16.0%)
Several days	1075	8.9% (8.1–9.9%)
More than half the days	356	3.0% (2.5–3.6%)
Nearly every day	261	2.7% (2.1–3.4%)
Generalised Anxiety Disorder Scale (GAD‐7)
Total score, mean (95% CI)	5.5 (5.3–5.7)
Moderate/ severe (clinically significant) symptoms (score, ≥ 10)	3661	21.0% (19.6–22.4%)
Mild anxiety symptoms (score, 5–9)	2774	24.5% (23.3–25.8%)
Item 7: Becoming easily annoyed or irritable	8335	59.2% (57.6–60.7%)
Several days	5277	35.5% (34.0–37.0%)
More than half the days	1925	14.6% (13.5–15.7%)
Nearly every day	1133	9.1% (8.1–10.3%)
Optimism about future
Total score, mean (95% CI)	6.1 (6.0–6.2)
High optimism (score, ≥ 8)	4075	28.3% (27.1–29.6%)

CI = confidence interval.

Weighted by state, socio‐economic status decile, sex, and age.