Table 1 The characteristics of the neonates admitted to the department of neonatology and neonatal intensive care of the UCH in bialystok.

From: Analysis of the in-hospital mortality in the tertiary referral department of neonatology and neonatal intensive care

Characteristics

Deceased neonates (N = 99)

Alive neonates (N = 19 072)

p

Male

62 (62.63%)

9 672 (50.71%)

p = 0.01

Female

35 (35.35%)

9 385 (49.21%)

Disorder of sex development

2 (2.02%)

2 (0.01%)

 

Inborn

91 (91.92%)

18 884 (99.01%)

p < 0.001

Outborn

8 (08.08%)

188 (0.99%)

Cesarean section

47 (47.47%)

9 039 (47.39%)

p = 0.99

Vaginal delivery

52 (52.53%)

10 020 (52.54%)

Single pregnancy

78 (78.79%)

17 552 (92.03%)

p < 0.001

Multiple pregnancy

21 (21.21%)

1 507 (7.90%)

Gestational age ≥ 37 0/7

16 (16.16%)

1 6818 (88.18%)

p < 0.001

Gestational age < 37 0/7

83 (83.84%)

2 254 (11.82%)

EPT (≤ 27 6/7)

60 (60.61%)

99 (0.52%)

 

VPT (28 0/7–31 6/7)

17 (17.17%)

260 (1.36%)

 

MPT (32 0/7–33 6/7)

1 (1.01%)

305 (1.60%)

 

LPT (34 0/7–36 6/7)

5 (5.05%)

1 590 ( 8.34%)

 

Birth weight ≥ 2,500 g

12 (12.12%)

17 194 (90.16%)

p < 0.001

Birth weight < 2,500 g1

85 (85.86%)

1 865 (9.78%)

ELBW (< 1,000)

58 (58.59%)

115 (0.60%)

 

VLBW (1,000–1,499)

14 (14.14%)

215 (1.13%)

 

LBW (1,500-2,499)

13 (13.13%)

1 535 (8.05%)

 

SGA (< 10th)

27 (27.27%)

1 193 (6.26%)

p < 0.001

AGA (10-90th)

55 (55.56%)

15 847 (83.09%)

LGA (> 90th)

15 (15.15%)

2 019 (10.59%)

1-min Apgar score 0–3

78 (78.79%)

282 (1.48%)

p < 0.001

1-min Apgar score 4–7

18 (18.18%)

1 443 (7.57%)

1-min Apgar score 8–10

3 (3.03%)

17 334 (90.89%)

5-min Apgar score <7

79 (79.80%)

168 (0.88%)

p < 0.001

5-min Apgar score ≥7

20 (20.20%)

18 891 (99.05%)

Maternal age <35 years

74 (74.75%)

14 583 (76.46%)

p = 0.69

Maternal age ≥ 35 years

25 (25.25%)

4 489 (23.54%)

Place of residence – city

60 (60.61%)

14 176 (74.33%)

p = 0.01

Place of residence – rural area

39 (39.39%)

4 883 (25.60%)

 

Median (Q1-Q3)

Birth weight (g)

800 (580–1540)

3370 (2990–3710)

p < 0.001

Gestational age (weeks)

26 (24–31)

39 (38–40)

p < 0.001

1-min Apgar score

1 (1–3)

10 (9–10)

p < 0.001

5-min Apgar score

4 (1–6)

10 (9–10)

p < 0.001

Maternal age

30 (28–34)

31 (28–34)

p = 0.89

  1. 1Not included: 2830 g = total birth weight of the conjoined twins.
  2. LBW – low birth weight; VLBW – very low birth weight; ELBW – extremely low birth weight; HBW – high birth weight; SGA – small for gestational age; LGA – large for gestational age; AGA – appropriate for gestational age, Q1-Q3 – interquartile range.
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