HHFNC practice in 2012 and 2015, data are displayed as the n (%)
| 2012 | 2015 | p Value | |
|---|---|---|---|
| HHFNC | |||
| Total number of units | 203 | 194 | |
| Using HHFNC | 113 (56%) | 169 (87%) | <0.001 |
| Unit level | |||
| Special care unit | 12/53 (23%) | 22/42 (52%) | 0.003 |
| Local neonatal unit | 60/92 (64%) | 84/88 (95%) | <0.001 |
| Neonatal intensive care unit | 41/58 (70%) | 63/64 (98%) | <0.001 |
| Data are subsequently displayed only for units using HHFNC | |||
| Indication of use | |||
| Alternative to CPAP/weaning from CPAP | 66 (58%) | 65 (38%) | 0.001 |
| Primary mode of respiratory support post extubation | 47 (42%) | 104 (62%) | 0.001 |
| Highest flow rate | |||
| 8 | 36 (32%) | 78 (46%) | 0.011 |
| 7 | 12 (11%) | 6 (4%) | 0.017 |
| 6 | 38 (34%) | 77 (46%) | 0.030 |
| 5 | 27 (23%) | 8 (4%) | <0.001 |
| Lowest flow rate | |||
| 4 | 11 (10%) | 18 (11%) | 0.485 |
| 3 | 40 (35%) | 40 (24%) | 0.023 |
| 2 | 45 (40%) | 97 (57%) | 0.003 |
| 1 | 17 (15%) | 14 (8%) | 0.058 |
| Size of change in flow when weaning (L/min) | |||
| 0.5 | 30 (27%) | 51 (30%) | 0.301 |
| 1 | 38 (34%) | 58 (35%) | 0.504 |
| 0.5–1 | 45 (40%) | 60 (36%) | 0.271 |
| Time between changes in flow rates | |||
| 24 hourly | 79 (47%) | ||
| 24–48 hourly | 21 (12%) | ||
| 48 hourly | 17 (10%) | ||
| Depends on the infant's condition | 52 (31%) | ||
| Prong size | |||
| Snug fit to occlude the nostril | 42 (25%) | ||
| Prong size selected to allow air leak | 127 (75%) | ||
| Guideline/policy | |||
| Yes | 108 (64%) | ||
CPAP, continuous positive airway pressure; HHFNC, humidified high flow nasal cannula.