eTable 5. Mental health summary scores at baseline and at the time of the COVID-NAKO questionnaire.
| PHQ-9 | GAD-7 | PHQ-stress | ||||
| Mean (SD) baseline | Mean (SD) COVID questionnaire | Mean (SD) baseline | Mean (SD) COVID questionnaire | Mean (SD) baseline | Mean (SD) COVID questionnaire | |
| All study centers | 3.68 (3.50) | 4.05 (3.91) | 3.01 (3.06) | 3.36 (3.42) | 3.36 (2.91) | 4.49 (3.48) |
| Neubrandenburg | 3.47 (3.44) | 3.73 (3.82) | 2.90 (3.03) | 3.16 (3.35) | 3.31 (2.96) | 4.50 (3.59) |
| Leipzig | 3.61 (3.40) | 3.70 (3.75) | 2.97 (3.05) | 3.07 (3.35) | 3.34 (2.85) | 4.29 (3.41) |
| Kiel | 3.59 (3.54) | 3.97 (3.88) | 2.85 (3.02) | 3.25 (3.37) | 3.24 (2.87) | 4.32 (3.44) |
| Halle | 3.50 (3.39) | 3.81 (3.78) | 2.91 (2.99) | 3.19 (3.33) | 3.34 (2.85) | 4.45 (3.41) |
| Essen | 3.94 (3.79) | 4.31 (4.11) | 3.15 (3.20) | 3.46 (3.52) | 3.41 (2.93) | 4.58 (3.51) |
| Augsburg | 3.53 (3.34) | 3.85 (3.84) | 2.99 (2.97) | 3.23 (3.40) | 3.35 (2.92) | 4.42 (3.52) |
| Mannheim | 3.78 (3.55) | 4.15 (3.98) | 3.00 (3.10) | 3.38 (3.47) | 3.35 (2.96) | 4.48 (3.46) |
| Berlin | 3.72 (3.50) | 4.24 (3.99) | 3.04 (3.07) | 3.45 (3.45) | 3.39 (2.92) | 4.60 (3.47) |
| Hanover | 3.58 (3.43) | 4.10 (3.83) | 2.86 (2.90) | 3.36 (3.38) | 3.24 (2.78) | 4.35 (3.36) |
| Bremen | 3.78 (3.49) | 4.19 (3.95) | 3.06 (3.08) | 3.42 (3.39) | 3.40 (2.93) | 4.46 (3.42) |
| Münster | 3.42 (3.29) | 3.90 (3.72) | 2.78 (2.88) | 3.32 (3.29) | 3.12 (2.74) | 4.29 (3.37) |
| Düsseldorf | 3.84 (3.63) | 4.27 (4.06) | 3.09 (3.15) | 3.53 (3.61) | 3.39 (2.94) | 4.53 (3.51) |
| Hamburg | 3.87 (3.69) | 4.39 (4.00) | 3.08 (3.17) | 3.55 (3.42) | 3.33 (2.88) | 4.69 (3.52) |
| Saarbrücken | 3.90 (3.65) | 4.15 (4.04) | 3.28 (3.26) | 3.56 (3.62) | 3.59 (3.06) | 4.67 (3.61) |
| Regensburg | 3.76 (3.56) | 4.00 (3.90) | 3.14 (3.10) | 3.41 (3.45) | 3.39 (2.97) | 4.52 (3.58) |
| Freiburg | 3.65 (3.39) | 4.06 (3.81) | 2.98 (2.91) | 3.48 (3.37) | 3.38 (2.87) | 4.61 (3.46) |
PHQ-stress; PHQ-9, depressive symptoms; GAD-7, anxiety symptoms; SD, standard deviation