Table 1 Demographic and clinical characteristics of participants.
Total sample | ||
|---|---|---|
N = 895 | ||
M | SD | |
Age (years) | 13.82 | 0.56 |
Depressive symptoms (PHQ-A) | 8.01 | 6.57 |
Anxiety symptoms (CAS-8) | 9.31 | 5.65 |
Insomnia symptoms (ISI) | 7.77 | 5.90 |
Disordered eating symptoms (SDE) | 1.68 | 1.49 |
Keystroke timing features (Median, ms) | ||
Dwell | 78.98 | 13.70 |
Latency | 301.69 | 74.82 |
Interval | 146.92 | 65.94 |
Down-down time | 221.03 | 69.40 |
Up-up time | 224.94 | 69.37 |
Keystroke frequency features (total) | ||
Keystrokes | 96.86 | 31.24 |
Spaces | 16.40 | 6.34 |
Backspaces | 7.58 | 6.54 |
Keystroke Frequency Features (proportion) | ||
Spaces | 16.81 | 3.15 |
Backspaces | 8.14 | 7.15 |
Duration between mental health assessment and typing days (days) | 1.95 | 3.26 |
N | % | |
Sex | ||
Female | 579 | 64.7 |
Male | 308 | 34.4 |
Not sure | 4 | 0.4 |
Other | 4 | 0.4 |
Location | ||
Major cities | 666 | 74.4 |
Inner regional | 200 | 22.3 |
Outer regional | 29 | 3.2 |
Language spoken at home | ||
English | 834 | 93.2 |
Other | 61 | 6.8 |
Typing hand | ||
Both | 615 | 68.7 |
Right | 57 | 6.4 |
Left | 7 | 0.8 |
Not reported | 216 | 24.1 |
Device | ||
iPhone | 188 | 21.0 |
Android | 49 | 5.5 |
Not reported | 658 | 73.5 |
Text typing script | ||
“For a minute or two…” | 109 | 12.2 |
“There was a table set…” | 117 | 13.1 |
“So much I’ll tell you…” | 113 | 12.6 |
“Then the sound of…” | 115 | 12.8 |
“They were friends in…” | 106 | 11.8 |
“The winter was very…” | 119 | 13.3 |
“A little girl, radiant…” | 101 | 11.3 |
“But they by no means…” | 115 | 12.8 |
