Table 2.
Sleep habits and characteristics of both study groups
| Variables |
Total (n = 410) |
“Excellent” 115 (28%) |
“Average” 295 (72%) |
P value |
|---|---|---|---|---|
| Do you feel that you get sufficient sleep? |
147 (36.0) |
57 (50.0) |
90 (30.6) |
0.000 |
| ESS |
7.71 ± 3.85 |
6.88 ± 3.64 |
8.03 ± 3.89 |
0.007 |
| Subjective feeling of sleepiness during classes |
261 (64.9) |
63 (55.3) |
198 (68.8) |
0.010 |
| Weekday bedtime (24 hrs) |
00.06 ± 1.58 |
23.76 ± 1.70 |
00.17 ± 1.52 |
0.018 |
| Weekday wake-up time |
06.15 ± 1.24 |
06.03 ±1.33 |
06.20 ± 1.20 |
0.196 |
| Weekday TST (hrs) |
6.04 ± 1.36 |
6.28 ±1.45 |
5.94 ± 1.31 |
0.026 |
| Weekend bedtime |
01.68 ± 2.20 |
01.14 ± 1.98 |
01.89 ± 2.25 |
0.002 |
| Weekend wake-up time |
09.69 ± 3.86 |
09.01 ± 3.73 |
09.95 ± 3.89 |
0.029 |
| Weekend TST (hrs) |
9.02 ± 2.45 |
8.96 ± 2.69 |
9.05 ± 2.36 |
0.753 |
| Bedtime delay during weekend* | 1.75 ± 1.44 | 1.66 ± 1.42 | 1.79 ± 1.46 | 0.447 |
ESS: Epworth sleepiness scale, TST: total sleep time.
*Bedtime during weekends - bedtime during weekday.