Table 1

Characteristics of the infants studied

Infant	Gestation at birth (weeks)	Corrected gestation at time of study (weeks)	Birth weight (kg)	Weight at time of study (kg)	Nasal cannula O₂ flow rate (l/min)	Total days on ventilator	Total days of CPAP
CPAP, continuous positive airway pressure.
1	25.6	37.7	0.640	2.330	0.03	27	55
2	25	36.4	0.870	3.000	0.03	19	33
3	27	37.7	0.670	2.200	0.02	6	16
4	25.9	37.3	0.965	2.705	0.1	2	50
5	28	38	0.590	1.940	0.01	11	70
6	26	36.6	0.970	2.535	0.1	45	70
7	27.4	36.4	0.800	2.300	0.04	1	44
8	28	37.3	0.890	2.650	0.02	2	40
9	27.3	37.9	0.750	2.130	0.08	1	31
10	26.7	37	0.965	2.600	0.02	16	63
11	24	37.9	0.520	2.100	0.15	50	68
12	27.3	36.3	0.490	1.530	0.03	2	81
13	25.4	36.3	0.650	2.195	0.02	4	15
14	26.7	37.4	1.110	2.910	0.02	1	40
15	26.1	37.1	0.690	2.040	0.05	4	70
16	26.1	36.1	0.610	1.790	0.07	14	76
17	29	37.4	1.060	2.350	0.125	0	0
18	23.7	36.9	0.630	1.960	0.01	50	74
19	28	38	0.570	2.250	0.05	4	33
20	26.7	37.6	0.950	2.440	0.03	11	65
21	23.7	37.6	0.530	2.380	0.08	41	77

Mean	26.4	37.2	0.758	2.302	0.052	14.8	51
SD	1.45	0.62	0.192	0.359	0.040	17.3	23.3