. 2021 Feb 9;9(2):191. doi: 10.3390/healthcare9020191

Table 1.

Differences in severe symptoms of depression, anxiety, and insomnia between Austria and the UK after 4 weeks of COVID-19 lockdown.

Scale	Sample		Statistic
Scale	Austria N = 1005	UK N = 1006	Before PS Correction	After PS Correction
Measures f (%)
PHQ-9
Not severe (<20 points)	974 (96.9)	884 (87.9)	χ²(1) = 58.48; p < 0.001	χ²(1) = 48.52; p < 0.001
Severe (≥20 points)	31 (3.1)	122 (12.1)	χ²(1) = 58.48; p < 0.001	χ²(1) = 48.52; p < 0.001
GAD-7
Not severe (<15 points)	945 (94.0)	816 (81.1)	χ²(1) = 77.05; p < 0.001	χ²(1) = 63.52; p < 0.001
Severe (≥15 points)	60 (6.0)	190 (18.9)	χ²(1) = 77.05; p < 0.001	χ²(1) = 63.52; p < 0.001
ISI
Not severe (<22 points)	983 (97.8)	933 (92.7)	χ²(1) = 28.68; p < 0.001	χ²(1) = 24.37; p < 0.001
Severe (≥22 points)	22 (2.2)	73 (7.3)	χ²(1) = 28.68; p < 0.001	χ²(1) = 24.37; p < 0.001

f: frequencies; %: percent; p: p-values (2-tailed); ISI: Insomnia Severity Index, GAD-7: Generalized Anxiety Disorder 7 scale; PHQ-9: Patient Health Questionnaire 9 scale; χ²: chi-square, PS: Propensity Score.