Respiratory severity score as a predictive factor for severe bronchopulmonary dysplasia or death in extremely preterm infants

Table 2 The correlation between respiratory severity scores on day of life 2, 7, 14, 21, and 28 and severe bronchopulmonary dysplasia or death

Postnatal day	N	PMA (day) median [min, max]		RSS mean ± SD		Odds ratio	95% Confidence Interval	P-value
Postnatal day	N	Survivors without severe BPD	Severe BPD	Survivors without severe BPD	Severe BPD	Odds ratio	95% Confidence Interval	P-value
2	135	187 [163, 196]	181 [163, 196]	2.71 ± 2.43	3.45 ± 2.36	1.184	[0.987, 1.42]	0.0684
7	100	192 [169, 201]	186 [168, 201]	2.27 ± 1.09	2.86 ± 1.7	1.424	[0.965, 2.102]	0.0746
14	85	199 [176, 208]	193 [175, 208]	2.41 ± 0.84	4.26 ± 3.31	2.135	[1.126, 4.049]	0.0202
21	84	205 [184, 212]	198 [184, 212]	2.8 ± 0.78	4.28 ± 2.47	2.797	[1.432, 5.464]	0.0026
28	80	213 [190, 222]	207 [189, 222]	2.72 ± 0.64	4.03 ± 2.21	3.526	[1.601, 7.764]	0.0018

PMA postmentrual age, BPD bronchopulmonary dysplasia, RSS respiratory severity score

ISSN: 1471-2431