Table 1.
Comparison of nasal intermittent mandatory ventilation responders to nasal intermittent mandatory ventilation non-responders - baseline characteristics1
| Baseline characteristic | NIMV responders (n = 36) | NIMV non-responders (n = 6) | Total (n = 42) | P value |
| Age (mo) | 4 (0.5-20, IQR = 6.4) | 5.2 (0.5-28.1, IQR = 12.6) | 4 (0.5-28.1, IQR = 7) | 0.69 |
| Admission weight (kg) | 4.9 (2.3-12, IQR = 4.3) | 7.1 (2.6-10.9, IQR = 4.8) | 5.1 (2.3-12, IQR = 4.4) | 0.39 |
| T Max in Celsius (range) | 38 (36.6-40, IQR = 1.6) | 38.9 (37.4-39.7, IQR = 1.7) | 38.1 (36.6-40, IQR = 1.6) | 0.2 |
| Respiratory rate (in breaths per minute) | 60 (24-97, IQR = 19) | 56 (42-77, IQR = 32) | 60 (24-97, IQR = 22) | 0.76 |
| O2 saturation (%) | 98 (68-100, IQR = 5.5) | 99 (98-100, IQR = 2) | 98.5 (68-100, IQR = 5) | 0.31 |
| Heart rate (beats per minute) | 152.5 (95-205, IQR = 34.5) | 158.5 (127-210, IQR = 24) | 153.5 (95-210, IQR = 33) | 0.99 |
| Systolic blood pressure (mmHg) | 100 (71-129, IQR = 21) | 112 (81-120, IQR = 25) | 103 (71-129, IQR = 20) | 0.3 |
| Diastolic blood pressure (mmHg) | 51 (37-84, IQR = 20) | 59.5 (43-81, IQR = 25) | 51 (37-84, IQR = 22) | 0.41 |
| PRISM-III score | 0 (0-11, IQR = 0) | 1 (0-7, IQR = 3) | 0 (0-11, IQR = 0) | 0.08 |
1Vital signs were the last recorded values before initiation of NIMV. Values are presented as median (range, IQR). NIMV: Nasal intermittent mandatory ventilation; PRISM-III: Pediatric risk of mortality III.