Table 3 Adjusted odds ratios for respiratory outcomes before NICU discharge among very low birth weight infants received different courses and duration of mechanical ventilation.
Outcome | Number of mechanical ventilation coursesa | Duration of mechanical ventilation b | |||||
---|---|---|---|---|---|---|---|
1 course | 2 courses |  ≥ 3 courses |  ≤ 7d | 8-21d | 22-35d |  ≥ 36d | |
BPD | Reference | 1.11 (0.88, 1.39) | 1.07 (0.72, 1.60) | Reference | 1.98 (1.59, 2.45) | 4.37 (3.17, 6.03) | 18.44 (10.98, 30.99) |
Severe BPD | Reference | 2.17 (1.07, 4.40) | 2.59 (1.02, 6.61) | Reference | 8.42 (3.22, 22.01) | 27.82 (9.08, 85.22) | 616.45 (195.79, > 999.999) |
Death | Reference | 1.80 (1.17, 2.77) | 2.52 (1.41, 4.51) | Reference | 1.70 (1.01, 2.84) | 6.31 (3.53, 11.26) | 3.78 (1.79, 8.00) |
Requirement of home oxygen therapy | Reference | 1.20 (0.94, 1.54) | 1.62 (1.07, 2.43) | Reference | 1.82 (1.42, 2.34) | 3.75 (2.65, 5.30) | 4.24 (2.74, 6.57) |
Discharged with requirement of non-invasive/invasive mechanical ventilation | Reference | 1.47 (0.96, 2.25) | 1.89 (1.04, 3.42) | Reference | 1.70 (1.03, 2.80) | 5.59 (3.14, 9.95) | 3.00 (1.45, 6.23) |