Table 1.

Neonatal and maternal clinical characteristics and demographic data

	All patients	25–28 GW	29–32 GW	33–36 GW	37–42 GW
Number of patients	629	27	150	201	251
Male/female patients	380/249	15/12	88/62	124/77	153/98
Average birth weight (g)	2507	1013	1640	2275	3358
Birth weight range (g)	460–5340	460–1520	840–2710	840–2710	1190–5340
Birth weight	Number of patients
Percentile < 3	36 (6%)	2	2	6	26
Percentile 3–10	47 (7%)	3	9	18	17
Percentile 10–90	479 (76%)	19	127	164	166
Percentile > 90	69 (11%)	3	12	13	41
Average Apgar scores
Apgar 1 min (SD)	7.59 (± 2.0)	6.3 (± 1.8)	7.0 (± 1.8)	7.4 (± 1.7)	8.3 (± 2.1)
Apgar 5 min (SD)	8.87 (± 1.3)	7.8 (± 1.6)	8.6 (± 1.2)	8.8 (± 1.1)	9.2 (± 1.5)
Neonatal therapy	Number of patients
Diuretics	40 (6.3%)	9	12	7	12
Analgesia	118 (19%)	3	33	28	57
Caffeine citrate	244 (39%)	27	138	73	5
Ibuprofen	17 (2.6%)	5	8	3	1
Ventilatory therapy (< 24 h)
Number of patients	40 (6.3%)	5	16	5	14
Length of ventilation (h)	3.3	2.0	2.9	3	5.3
Non-invasive ventilation
Number of patients	375 (59%)	27	141	136	70
Length of ventilation (d)	5.74	26.5	6.55	3.2	2.18
Maternal data
Number of mothers	594
Hypertension	91 (15.3%)	7	20	41	23
IDDM/GDM	82 (13.8%)	2	24	30	26
Smoking	34 (5.7%)	5	11	10	8
Incomplete data	44 (7.4%)	1	7	11	25
Antenatal steroid	Patients	25–28 GW	29–32 GW	33–34 GW
Incomplete course	82 (27%)	8	37	37
Complete course	170 (55%)	15	86	69
Not received	54 (18%)	4	27	23

GW gestational week, SD standard deviation, IDDM insulin-dependent diabetes mellitus, GDM gestational diabetes mellitus