Referral rates, hospital LoS and 90 day readmission rates pre and post D-NIV outreach service
| Pre-outreach service | Post-outreach service | p-value | |||
|---|---|---|---|---|---|
| Patients eligible for D-NIV | |||||
| Referral rates per acute NIV episodes at one referring site (Site A) (%) | 10/669 (1.5%) | 31/350 (8.9%) | p<0.001 | ||
| Further patients eligible for consideration of D-NIV at Site A but not referred (%) COPD COPD/OSA OHS NMD CWD | 84/659 (9.8%) 58.3%(49) 4.7% (4) 30.9% (26) 1.1% (1) 4.7% (4) | 1/319 (0.3%) 100% (n1) | p<0.001 | ||
| Patients at site A-E referred to D-NIV service (n) Diagnosis%(n): COPD COPD/OSA NMD OHS CWD Other | Inpatient referral n=11 Outpatient referral n=7 Total n=17 38.9% (7) 0% (0) 16.7% (3) 38.9% (7) 5.6% (1) 0% (0) | Inpatient referral n=68 26.4% (18) 10.2% (7) 7.4% (5) 47% (32) 5.9% (4) 2.9% (2) | p=0.431 | ||
| Patients referred to the service | |||||
| Pre-outreach service Site A-E | Post-outreach service Sites A-E | ||||
| Hospital length of stay (days) Mean (SD) | n=11 49(49) | n=68 28(26) | Mean diff 20.7 (95%CI −14 to 56) p=0.167 | ||
| 90 day readmission rate 90R | 10% | 30% | p=0.264 | ||
COPD=chronic obstructive pulmonary disease, OSA=obstructive sleep apnoea, NMD=neuromuscular disease, OHS=obesity hypoventilation syndrome CWD=chest wall deformity.