Table 1.
Sociodemographic and clinical characteristics by sample
| Pre-lockdown | Post-lockdown | p | |
|---|---|---|---|
| N (female), n | 324 (224) | 324 (225) | Matched for |
| Age, mean (SD) | 14.93 (1.88) | 14.93 (1.88) | Matched for |
| Median, range [min–max] | 15.00 [12.00–20.00] | 15.00 [12.00–20.00] | |
| Participant born in Germany, n (%) | 310 (95.68) | 310 (95.68) | 1 |
| Father born in Germany, n (%) | 238 (73.46) | 256 (79.01) | 0.186 |
| Unknown, n (%) | 3 (0.93) | 1 (0.31) | |
| Mother born in Germany, n (%) | 239 (73.77) | 258 (79.63) | 0.204 |
| Unknown, n (%) | 8 (2.47) | 7 (2.16) | |
| School type, n (%) | Matched for | ||
| Oberschule and Gymnasium | 162 (50.00) | 163 (50.31) | |
| Realschule | 25 (7.72) | 25 (7.72) | |
| Haupt- & Werkrealschulen | 25 (7.72) | 24 (7.41) | |
| Gemeinschaftsschulen & Stadtteilschulen | 112 (34.57) | 112 (34.57) | |
| SDQ total, mean (SD) | 12.36 (5.39) | 11.98 (5.03) | 0.351 |
| Median, range [min–max] | 12.00 [0.00–27.00] | 12.00 [1.00–26.00] | |
| SDQ emotional, mean (SD) | 4.56 (2.62) | 4.00 (2.55) | 0.214 |
| Median, range [min–max] | 4.00 [0.00–10.00] | 4.00 [0.00–10.00] | |
| SDQ conduct, mean (SD) | 2.00 (1.60) | 1.76 (1.45) | 0.045 |
| Median, range [min–max] | 2.00 [0.00–10.00] | 2.00 [0.00–8.00] | |
| SDQ hyper, mean (SD) | 3.51 (2.22) | 3.53 (1.99) | 0.911 |
| Median, range [min–max] | 3.00 [0.00–10.00] | 3.00 [0.00–9.00] | |
| SDQ peer, mean (SD) | 2.60 (1.66) | 2.69 (1.62) | 0.473 |
| Median, range [min–max] | 2.00 [0.00–9.00] | 2.00 [0.00–8.00] | |
| SDQ social, mean (SD) | 8.18 (1.67) | 8.20 (1.59) | 0.828 |
| Median, range [min–max] | 8.00 [3.00–10.00] | 9.00 [1.00–10.00] | |
| PHQ-A, mean (SD) | 7.95 (5.55) | 7.39 (4.94) | 0.169 |
| Median, range [min–max] | 6.5 [0.00–25.00] | 6.00 [0.00–27.00] | |
| WCS, mean (SD) | 31.67 (1.32) | 30.56 (1.30) | 0.550 |
| Median, range [min–max] | 26.67 [0.00–93.33] | 26.67 [0.00–93.33] | |
| EDE-Q, mean (SD) | 1.18 (0.07) | 1.11 (0.07) | 0.469 |
| Median, range [min–max] | 0.66 [0.00–5.45] | 0.59 [0.00–5.68] | |
| KS-10, mean (SD) | 27.64 (6.38) | 27.34 (6.15) | 0.539 |
| Median, range [min–max] | 28.00 [3.00–40.00] | 28.00 [8.00–40.00] | |
| Thoughts of suicide, n (%) | 44 (13.58) | 33 (10.19) | 0.182 |
| Suicide plans, n (%) | 21 (6.48) | 7 (2.16) | 0.007 |
| Suicide attempts (%) | 1 (0.31) | 1 (0.31) | 1 |
| FAS, n (%) | 0.701 | ||
| Low | 6 (1.85) | 6 (1.85) | |
| Medium | 79 (24.38) | 70 (21.60) | |
| High | 239 (73.77) | 248 (76.54) | |
| Laucht-Index, n (%) | 0.724 | ||
| No risk | 118 (36,42) | 112 (34.57) | |
| Low risk | 123 (37.96) | 133 (41.05) | |
| High risk | 83 (25.62) | 79 (24.38) | |
| Laucht score, mean (SD) | 1.54 (1.58) | 1.64 (1.70) | 0.431 |
| Median, range [min–max] | 1.00 [0.00–7.00] | 1.00 [0.00–8.00] | |
| FAS score, mean (SD) | 6.69 (1.81) | 6.57 (1.70) | 0.383 |
| Median, range [min–max] | 7.00 [2.00–9.00] | 7.00 [1.00–9.00] |
School type: after 4 years of elementary school the German school system branches into three types of secondary schools. The so called Haupt- & Werkrealschulen (Secondary General School which takes 5 years after Primary School) prepares pupils for vocational training, whereas the Realschule (Intermediate Secondary School) concludes with a general certificate of secondary education after 6 years. Eight years of Oberschule, Gymnasium provide pupils with a general university entrance qualification; Gemeinschaftsschulen & Stadtteilschulen are secondary schools in Saxony
SDQ Strengths and Difficulties Questionnaire and respective sub-scales, PHQ-A Patient Health Questionnaire for Adolescents, WCS Weight Concerns Scales, EDE-Q Eating Disorder Examination-Questionnaire, KS-10 KIDSCREEN (KS-10) generic HRQoL measure for children and adolescents, FAS Family Affluence Scale as index of socioeconomic status (SES), Laucht-Index assessing potential family risk factors