Table 2.
Means and standard deviations of internalizing problems before and during the pandemic in all cohorts
| Cohort | Pre-pandemic (a) | Pandemic Apr–May 2020 (b) | Pandemic Nov–Dec 2020 (c) | |||
|---|---|---|---|---|---|---|
| M | SD | M | SD | M | SD | |
| General population | ||||||
| Parent-reported internalizing problems (BPM) | ||||||
| NTR | 0.90b,c | (1.51) | 1.49a,c | (1.99) | 1.07a,b | (1.71) |
| Child-reported anxiety problems (PROMIS) | ||||||
| KLIK | 43.76b,c | (9.87) | 50.78a,c | (7.78) | 49.61a,b | (8.25) |
| Child-reported depressive problems(PROMIS) | ||||||
| KLIK | 44.73b,c | (10.62) | 49.53a | (8.20) | 48.81a | (9.18) |
| Clinical population | ||||||
| Parent-reported internalizing problems (BPM) | ||||||
| DREAMS | 5.24 | (3.24) | 4.91 | (3.52) | 5.04 | (3.41) |
| LDY | 3.86 | (3.09) | 3.75 | (3.16) | 3.84 | (3.24) |
| Child-reported anxiety problems (PROMIS) | ||||||
| DREAMS | – | – | 51.45c | (8.98) | 54.45b | (9.21) |
| Child-reported depressive problems(PROMIS) | ||||||
| DREAMS | – | – | 51.98c | (10.64) | 55.67b | (10.81) |
BPM Brief problem monitor, PROMIS Patient-reported outcomes measurement information system
a,b,crepresent significant differences at p < .05 between measurements as indicated by independent sample t tests