Persistent Pulmonary Hypertension of Non Cardiac Cause in a Neonatal Intensive Care Unit

Table 4

Survival rates between two periods.

	1996–2002	2003–2010	𝑃
	𝑛=36	𝑛=42
Gestational age, weeks, median (min–max)	41 (30–41)	39 (32–41)	0.032 ^§
Preterm (<37 weeks of gestation), 𝑛 (%)	8 (22)	8 (19)	0.081*
Birthweigt, g, median (min–max)	3100 (1450–4170)	3040 (1800–4070)	0.354^§
Gender
Male, 𝑛 (%)	23 (64)	30 (71)
Female, 𝑛 (%)	13 (36)	12 (29)	0.456*
C-section, 𝑛 (%)	23 (64)	28 (67)	0.657*
Outborn, 𝑛 (%)	18 (50)	16 (38)	0.071*
NICU stay	10 (1–67)	16 (1–167)	0.034 ^§
Time to normalization of PH	5 (2–25)	9 (2–160)	0.0391 ^§
Survival, 𝑛 (%)	23 (63.8)%	30 (71.4)	0.040 **

^§: Mann-Whitney test; *: Chi-Squared test; **: Fisher Exact test; NICU: neonatal intensive care unit; PH; pulmonary hypertension.