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Prevalence of sleep disorders.
| Sleep disorder | Frequency | % |
|---|---|---|
| Obstructive sleep apnea | 72 | 16.4 |
| Insomnia | 138 | 31.5 |
| Narcolepsy | 226 | 51.6 |
| RLS/PLMD | 98 | 22.4 |
| Circadian rhythm disorder | 98 | 22.4 |
| Sleepwalking | 16 | 3.7 |
| Nightmares | 60 | 13.7 |
| Total of those having ≥1 sleep disorder | 323 | 73.7 |
