Table 2 The differences in cardio-respiratory symptoms before and during car seat testing in association with symptoms in supine position, gestational age and pre-discharge weight (n, %).
Cardio-respiratory symptom | Car seat testing | Symptoms while supine | Gestational age (weeks) | Pre-discharge weight (grams) | |||
|---|---|---|---|---|---|---|---|
|  |  | Symptoms (+) (n = 15) | Symptoms(-) (n = 27) | <28 (n = 16) | 28–34 (n = 26) | < = 2,000 (n = 24) | >2,000 (n = 18) |
Periodic Breathing | before | 9 (60.0%) | 0 | 7 (43.8%) | 2 (7.7%) †| 5 (20.8%) | 4 (22.2%) |
| Â | during | 9 (60.0%) | 16 (59.3%) | 9 (56.3%) | 16 (61.5%) | 16 (66.7%) | 9 (50.0%) |
Bradycardia (HR ≤80/min) | before | 4 (26.7%) | 0 | 2 (12.5%) | 2 (7.7%) | 3 (12.5%) | 1 (5.6%) |
| Â | during | 5 (33.3%) | 9 (3.3%) | 5 (31.3%) | 9 (34.6%) | 9 (37.5%) | 5 (27.8%) |
O2 Saturation <90% | before | 9 (60.0%) | 0 | 5 (31.3%) | 4 (15.4%) †| 8 (33.3%) | 1 (5.6%) †|
| Â | during | 13 (85.2%) | 20 (74.1%) | 12 (75.0%) | 21 (80.8%) | 20 (83.3%) | 13 (72.2%) |
Combination * | before | 10 (66.7%) | 0 | 6 (37.5%) | 4 (15.4%) †| 9 (37.5%) | 1 (5.5%) †|
|  | during | 12 (80.0%) | 23 (85.2%) | 14 (87.5%) | 21 (80.8%) | 22 (91.7%) | 13 (72.2%) ††|