この研究は、医学生（n=100）を対象に携帯電話の使用時間と睡眠のパターンおよび質との関連を調査した。事例群（n=57：1日の携帯使用時間> 2時間）、対照群（n=43：1日の携帯使用時間≤ 2時間）について、ピッツバーグ睡眠質問票（PSQI）を用いて睡眠の質とパターンを調べた。その結果、睡眠障害、睡眠潜時、日中の不調などが、事例群で多かった；使用時間と睡眠指数の有意な相関が観察された、などの所見を報告している。
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A survey was conducted in India to investigate the association between mobile phone use and sleep pattern and quality of medical students.
The volunteers fulfilling the inclusion criteria of more than one year of GSM mobile phone use were included in the study. Study participants were questioned about their sleep quality/pattern using a Pittsburgh Sleep Quality Index questionnaire.
| グループ | 説明 |
|---|---|
| 集団 1 | mobile phone use ≤ 2 hours/day |
| 集団 2 | mobile phone use > 2 hours/day |
| タイプ | 値 |
|---|---|
| 合計 | 100 |
Overall 57% of the medical students were using the mobile phones for more than 2 hours per day.
Sleep disturbance, sleep latency and day dysfunction was higher among students using their mobile phone more than 2 hours/day, especially among females. A significant difference in sleep disturbance was observed among students using their mobile phone more than 2 hours/day compared to students with less than 2 hours/day use. Evening usage of mobile phone in students using their mobile phone more than 2 hours/day showed a statistically significant negative correlation with sleep quality.
The authors conclude that students using mobile for > 2 hours/day may cause sleep deprivation and day sleepiness affecting cognitive and learning abilities of medical students.
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