Table 5.
Bivariate analysis of factors associated with survival to discharge.
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|---|---|---|---|---|---|---|---|---|
| NIPPV | INTUBATION | |||||||
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| n | SURVIVED TO DISCHARGE | DID NOT SURVIVE TO DISCHARGE | P VALUEa | n | SURVIVED TO DISCHARGE | DID NOT SURVIVE TO DISCHARGE | P VALUEa | |
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| N = 12 | N = 11 | N = 6 | N = 21 | |||||
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| Age | ||||||||
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| Age <5 years | n = 1 | 1 (100.0%) | 0 (0.0%) | 0.328 | n = 5 | 1 (20.0%) | 4 (80.0%) | 0.895 |
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| Age 5–18 years | n = 5 | 2 (40.0%) | 3 (60.0%) | 0.538 | n = 4 | 1 (25.0%) | 3 (75.0%) | 0.885 |
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| Age >18 years | n = 17 | 9 (52.9%) | 8 (47.1%) | 0.901 | n = 18 | 4 (22.2%) | 14 (77.8%) | 1.000 |
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| Female gender | n = 14 | 6 (42.9%) | 8 (57.1%) | 0.265 | n = 15 | 5 (33.3%) | 10 (66.7%) | 0.121 |
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| Comorbidities | ||||||||
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| Congestive heart failure | n = 8 | 2 (25.0%) | 6 (75.0%) | 0.035 | – | – | – | – |
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| Asthma | n = 2 | 2 (100.0%) | 0 (0.0%) | 0.176 | n = 3 | 3 (100.0%) | 0 (0.0%) | 0.002 |
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| High priority triage acuityb | n = 19 | 10 (52.6%) | 9 (47.4%) | 0.305 | n = 22 | 4 (18.2%) | 18 (81.8%) | 0.639 |
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| Presumed diagnosis | ||||||||
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| Cardiovascular | n = 13 | 4 (30.8%) | 9 (69.2%) | 0.019 | n = 4 | 1 (25.0%) | 3 (75.0%) | 0.885 |
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| Respiratory | n = 6 | 5 (83.3%) | 1 (16.7%) | 0.076 | n = 5 | 4 (80.0%) | 1 (20.0%) | <0.001 |
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| Infectious | n = 3 | 2 (66.7%) | 1 (33.3%) | 0.590 | n = 12 | 1 (8.3%) | 11 (91.7%) | 0.121 |
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| On SpO2 monitoring prior to NIPPV | n = 22 | 12 (54.5%) | 10 (45.5%) | 0.286 | – | – | – | – |
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| Trial of NIPPV before intubation | – | – | – | – | n = 7 | 4 (57.1%) | 3 (42.9%) | 0.010 |
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| Initial operator first- or second-year resident | – | – | – | – | n = 17 | 3 (17.6%) | 14 (82.4%) | 0.456 |
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SpO2, oxygen saturation.
a P-values were calculated using chi-squared tests.
b High priority triage acuity includes red and orange triage levels. Excludes patients who had missing data on South African Triage Scale triage level.