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. 2020 Sep 1;20:414. doi: 10.1186/s12887-020-02324-1

Table 1.

The characteristics of infants with BPD who received tracheostomy

Variable Poor Outcome
(n = 27)
Good outcome
(n = 14)
P value

Gestational Age (wks)

Mean, SD

26.5 ± 1.8 26 ± 2.3 0.44

Post-conceptional age at admission (wks)

Mean, SD

39.1 ± 7.5 34.6 ± 5.4* 0.05
Male (%) 19/27 (70%) 9/14 (64%) 0.69

Birthweight (kg)

Mean, SD

0.68 ± 0.17 0.83 ± 0.34 0.06
Small for gestational age 12/27 2/14 0.11

FiO2 at 36 wks CGA

Mean, SD

0.40 ± 0.17 0.30 ± 0.08* 0.04

RSS prior to tracheostomy

Mean, SD

4.8 ± 1.8 3.6 ± 1.4* 0.03

Post-conceptional age at tracheostomy (wks)

Mean, SD

50.9 ± 8.9 49.6 ± 14.6 0.72
Pulmonary Hypertension (%) 19/27 (70%) 6/14 (43%)* 0.049
Sepsis 14/27 (51%) 6/14 (43%) 0.58
Mode of delivery 18/27 (66%) 9/14 (64%) 0.87
Postnatal steroids 27/27 (100%) 14/14 (100%) 0.65
Antenatal steroids 18/27 (66%) 11/14 (78%)* 0.42

(* p value ≤ .05)