Table 2.
Association between demographics and sleep quality (mean PSQI score).
| Characteristics | Number (%) | Mean (SD) PSQI Score | p-value |
|---|---|---|---|
| Year in the curriculum | |||
| 1 | 5.97 (2.47) | 0.026a | |
| 2 | 84 (15.2%) | 6.93 (3.35) | |
| 3 | 292 (52.8%) | 6.36 (2.63) | |
| Missing data | 0 (0%) | ||
| Gender | |||
| Male | 268 (48.5%) | 6.21 (2.63) | 0.311 |
| Female | 281 (50.8%) | 6.44 (2.80) | |
| Missing data | 4 (0.7%) | ||
| Residency | |||
| With family | 262 (47.4%) | 6.18 (2.76) | 0.496 |
| Dormitory | 230 (41.6%) | 6.58 (3.07) | |
| Other b | 58 (10.5%) | 7.17 (2.63) | |
| Missing data | 2 (0.5%) | ||
| Marital status c | |||
| Single | 548 (99.1%) | 6.30 (2.70) | |
| Married | 4 (0.7%) | 8.50 (4.66) | |
| Missing data | 1 (0.2%) | ||
| Number of roommates | |||
| 1-3 | 67 (29.1%) | 6.31 (2.45) | 0.913 |
| 4-6 | 141 (61.3%) | 6.54 (2.62) | |
| 7-9 | 22 (9.6%) | 6.32 (2.83) | |
| Missing data | 0 (0%) |
PSQI=Pittsburgh Sleep Quality Index
SD=Standard Deviation
a Post- hoc test showed that the difference is between the first year group and the second year group (p-value=0.02)
b
Including alone, with friend or other undetermined forms.
c
Because of low number of married students, p-value was not calculated.