Table 3 Treatment in preterm infants with different levels of BPD

PS (n, %)

6 (15.3)

85 (45.9)

19 (73.0)

22.166

< 0.001^#

Aminophylline (n, %)

4 (10.2)

20 (10.8)

11 (42.3)

14.522

0.001*

Caffeine (n, %)

15 (0.38)

128 (69.1)

11 (42.3)

17.423

< 0.001^#

Glucocorticoids (n, %)

37 (94.8)

140 (75.6)

26 (100.0)

20.606

< 0.001*

Non-invasive respiratory support (n, %)

37 (94.8)

180 (97.2)

26 (100.0)

1.532

0.217*

Invasive respiratory support (n, %)

10 (25.6)

111 (60.0)

21 (80.7)

22.291

< 0.001^#

Maximum FiO2 ≥ 40% (n, %)

24 (61.5)

131 (70.8)

22 (84.6)

4.019

0.134^#

Parenteral nutrition (days,M(P25,P75))^a

10 (8,12)

17 (15,20)

19 (16,22)

82.257^b

< 0.001

Diuretics (n, %)

19 (48.7)

50 (27.0)

15 (57.6)

14.342

0.001^#