Table 3. Sleep symptom categories reported by study participants within subgroups.
| Groups | Category | No | Yes | χ2 or MWU | P value | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| N | % or range | N | % or range | |||||||
| Suspected COVID-19 | Number of sleep symptoms | 3 | 0–6 | 4 | 0–6 | 56,821 | 0.406 | |||
| Insomnia/disrupted sleep | 354 | 53.2% | 108 | 60.7% | 3.139 | 0.076 | ||||
| Daytime symptoms | 320 | 48.0% | 90 | 50.6% | 0.335 | 0.563 | ||||
| Abnormal behaviours in sleep | 143 | 21.5% | 47 | 26.4% | 1.932 | 0.165 | ||||
| Sleep-disordered breathing | 181 | 27.2% | 42 | 23.6% | 0.947 | 0.330 | ||||
| Restless legs | 125 | 18.8% | 32 | 18.0% | 0.062 | 0.803 | ||||
| Sleep phase disturbance | 353 | 53.1% | 88 | 49.4% | 0.748 | 0.387 | ||||
| How concerned are you about your sleep? (0–10) | 6 | 4–7 | 6 | 4–8 | 21330 | 0.326 | ||||
| Self-isolation | Number of sleep symptoms | 3 | 0–6 | 4 | 1–7 | 70,651 | 0.006 | |||
| Insomnia/disrupted sleep | 288 | 51.7% | 174 | 60.8% | 6.365 | 0.012 | ||||
| Daytime symptoms | 256 | 46.0% | 154 | 53.8% | 4.704 | 0.030 | ||||
| Abnormal behaviours in sleep | 112 | 20.1% | 78 | 27.3% | 5.557 | 0.018 | ||||
| Sleep-disordered breathing | 143 | 25.7% | 80 | 28.0% | 0.513 | 0.474 | ||||
| Restless legs | 90 | 16.2% | 67 | 23.4% | 6.588 | 0.010 | ||||
| Sleep phase disturbance | 291 | 52.2% | 150 | 52.4% | 0.003 | 0.955 | ||||
| How concerned are you about your sleep? (0–10) | 6 | 4–7 | 6 | 4–8 | 26965 | 0.115 | ||||
| Keyworkers | Number of sleep symptoms | 3 | 0–6 | 3 | 0–6 | 74,972 | 0.123 | |||
| Insomnia/disrupted sleep | 292 | 54.0% | 166 | 56.1% | 0.686 | 0.558 | ||||
| Daytime symptoms | 273 | 50.5% | 134 | 45.3% | 2.069 | 0.151 | ||||
| Abnormal behaviours in sleep | 131 | 24.2% | 56 | 18.9% | 5.683 | 0.079 | ||||
| Sleep-disordered breathing | 157 | 29.0% | 64 | 21.6% | 5.530 | 0.020 | ||||
| Restless legs | 109 | 20.1% | 48 | 16.2% | 3.334 | 0.164 | ||||
| Sleep phase disturbance | 291 | 53.8% | 147 | 49.7% | 1.319 | 0.253 | ||||
| How concerned are you about your sleep? (0–10) | 6 | 4–7 | 6 | 4–7 | 27,592 | 0.369 | ||||
| Mental health | Number of sleep symptoms | 0 | 0–3 | 5 | 2–7 | 34,296 | <0.001 | |||
| Insomnia/disrupted sleep | 72 | 28.3% | 377 | 68.4% | 118.238 | <0.001 | ||||
| Daytime symptoms | 60 | 23.6% | 338 | 61.3% | 104.778 | <0.001 | ||||
| Abnormal behaviours in sleep | 16 | 6.3% | 170 | 30.9% | 63.810 | <0.001 | ||||
| Sleep-disordered breathing | 34 | 13.4% | 181 | 32.8% | 34.783 | <0.001 | ||||
| Restless legs | 23 | 9.1% | 127 | 23.0% | 22.599 | <0.001 | ||||
| Sleep phase disturbance | 89 | 35.0% | 336 | 61.1% | 49.360 | <0.001 | ||||
| How concerned are you about your sleep? (0–10) | 4 | 1–6 | 6 | 5–8 | 11,789 | <0.001 | ||||
Suspected COVID-19: no (n=665), yes (n=178); self-isolation: no (n=557), yes n=286; keyworkers: no (n=541), yes n=296; mental health: no (n=254), yes (n=549). Data presented as count (percentage) and median [interquartile range]. χ2 = Chi-squared values presented for categorical variables. MWU = Mann-Whitney U values presented for scale variables.