Table 2.
The Children’s Sleep Habits Questionnaire scale scores according to ferritin levels
| |
<30 ng/mL |
≥30 ng/mL |
|
|
|---|---|---|---|---|
| Mean ± SD(n) | Mean ± SD(n) | t | p | |
| CSHQ subscales |
|
|
|
|
| Bedtime resistance |
12.3 ± 2.9(25) |
11.3 ± 3.0(16) |
1.093 |
0.281 |
| Sleep-onset delay* |
1.9 ± 0.7(24) |
1.6 ± 0.7(16) |
1.316 |
0.196 |
| Sleep duration |
5.6 ± 1.7(25) |
4.7 ± 1.5(16) |
1.750 |
0.088 |
| Sleep anxiety |
8.4 ± 1.9(25) |
7.4 ± 3.0(16) |
1.133 |
0.269 |
| Night wakings* |
5.5 ± 1.5(24) |
4.6 ± 2.3(16) |
1.398 |
0.170 |
| Parasomnias |
12.1 ± 3.1(25) |
11.6 ± 2.5(16) |
0.556 |
0.581 |
| Sleep-disordered breathing* |
5.0 ± 2.2(25) |
4.1 ± 1.2(15) |
1.703 |
0.097 |
| Daytime sleepiness |
16.7 ± 2.5(25) |
14.6 ± 4.5(16) |
1.714 |
0.101 |
| Total score | 62.5 ± 8.5(25) | 56.1 ± 12.0(16) | 2.00 | 0.052 |
*Numbers of subjects do not add up to total N because of missing data.