Table 1.
Study groups.
| Group | Non-SRBD * | SRBD Positive | Test | p ** |
|---|---|---|---|---|
| No. (%) | 203 (89.4%) | 24 (10.6%) | ||
| % female | 50% | 52.2% | Chi-square | NS |
| Age | 6.8 ± 2.4 | 6.9 ± 2.9 | t-test | NS |
| BMI * | 15.85 ± 2.69 | 17.41 ± 4.72 | t-test | NS |
| Number of children in the family | 3.7 ± 2.0 | 3.6 ± 3.0 | t-test | NS |
| Week of birth | 39.04 ± 1.67 | 38.78 ± 1.66 | t-test | NS |
| Weight at birth | 3.22 ± 0.52 | 3.06 ± 0.72 | t-test | NS |
| PSQ * score | 2.04 ± 2.05 | 10.20 ± 1.81 | t-test | <0.001 |
* Variables as follows: SRBD—sleep-related disordered breathing, BMI—body mass index, PSQ—Pediatric Sleep Questionnaire; ** significant differences marked in bold, NS—non-significant.