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Table 2 The survival rate of extremely preterm (EP) infants at discharge from 2008 to 2017

From: Short-term outcomes of extremely preterm infants at discharge: a multicenter study from Guangdong province during 2008–2017

 

2008

2009

2010

2011

2012

2013

2014

2015

2016

2017

Total

All EP infants, n

58

75

78

158

163

186

257

299

369

408

2051

 Survived, n (%)

21 (36.2)

25 (33.3)

28 (35.9)

66 (41.8)

79 (48.5)

95 (51.1)

130 (50.6)

170 (56.9)

220 (59.6)

242 (59.3)

1076 (52.5)

 Died despite active treatment, n (%)

14 (24.1)

16 (21.3)

12 (15.4)

33 (20.9)

16 (9.8)

22 (11.8)

54 (21.0)

58 (19.4)

52 (14.1)

44 (10.8)

321 (15.7)

 Died after medical care withdrawal, n (%)

23 (39.7)

34 (45.3)

38 (48.7)

59 (37.3)

68 (41.7)

69 (37.1)

73 (28.4)

71 (23.7)

97 (26.3)

122 (29.9)

654 (31.9)

All preterm infants, n (%)*

8335 (0.70)

8499 (0.88)

10,795 (0.72)

14,210 (1.11)

15,611 (1.04)

16,574 (1.12)

16,266 (1.58)

15,967 (1.87)

18,417 (2.00)

17,780 (2.29)

142,454 (1.44)

All infants, n (%)#

33,299 (0.17)

33,328 (0.22)

43,305 (0.18)

53,066 (0.29)

58,718 (0.28)

55,603 (0.33)

53,951 (0.48)

53,937 (0.55)

60,075 (0.61)

60,886 (0.67)

506,168 (0.41)

  1. R × C Chi-square test (linear-by-linear association) showed that the ratios of EP infants in all preterm infants and in all infants discharged rose up annually (both P<0.001). And the annual survival rate of EP infants improved from 2008 to 2017 (P<0.001). EP: Extremely preterm; *Percentile of EP infants discharged in all preterm infants discharged; #Percentile of EP infants discharged in all infants discharged