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%)

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%)

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%) †

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%) ††

*Presence of any cardio-respiratory symptoms

† (P < 0.05) differences in frequency of cardio-respiratory symptoms in supine position in association with gestational age and pre-discharge weight.

†† (P < 0.05) differences in frequency of cardio-respiratory symptoms during car seat testing in association with symptoms in supine position, gestational age, and pre-discharge weight.

Ojadi et al. BMC Pediatrics 2005 5:28   doi:10.1186/1471-2431-5-28