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. 2011 Dec 30;5:135–143. doi: 10.2174/1874285801105010135

Table 4.

Results from the IMpact Study, a Randomized Placebo Controlled Trial on Palivizumab in Preterm Children with and Without Bronchopulmonary Dysplasia [45]

RSV Hospitalization Palivizumabn = 1002 Placebon = 500 Relative Reduction (%) p-Value*
Preterm infants ≤ 35 weeks (including BPD) 4.8 % 10.6 % 55% <0.001
Preterm infants ≤ 35 weeks (no BPD) 1.8 % 8.1 % 78% <0.001
all BPD 7.9 % 12.8 % 39% 0.038
Preterm infants 32-35 weeks (no BPD) 1.8 % 10.0 % 82% <0.001
Total days hospitalization/ 100 children 36.4 62.6 - <0.001
Total days with supplemental oxygen 30.3 50.6 - <0.001
Total days with LRI-score ≥ 3 29.6 47.4 - <0.001
ICU admission 1.3 % 3% - 0.026
Total ICU days 12.7 13.3 - 0.023
Mechanical ventilation 0.2 % 0.7 % - 0.280
Total days of mechanical ventilation 1.7 8.4 - 0.210

BPD = bronchopulmonary dysplasia, LRI-score = lower respiratory tract infection score (0 = no illness, 5 = mechanical ventilation), ICU = intensive care unit

*

Fisher´s exact test