Table 3.
Multivariate analysis by logistic regression (Backward method) to determine the patients’ characteristics that contributed to the risk of death*
| Markers |
B |
SE |
Wald |
df |
P-value |
OR |
95% CI |
||
|---|---|---|---|---|---|---|---|---|---|
|
Lower
|
Upper
|
||||||||
| Sex (male) |
0.158 |
0.007 |
526.943 |
1 |
<0.001 |
1.172 |
1.156 |
1.187 |
|
|
Age
| |||||||||
| <1-y-old |
|
|
44 628.873 |
6 |
<0.001 |
|
|
|
|
| 1 to 12 y old |
-0.570 |
0.097 |
34.820 |
1 |
<0.001 |
0.565 |
0.468 |
0.683 |
|
| 13 to 24 y old |
0.306 |
0.078 |
15.553 |
1 |
<0.001 |
1.359 |
1.167 |
1.582 |
|
| 25 to 60 y old |
0.869 |
0.069 |
156.679 |
1 |
<0.001 |
2.385 |
2.081 |
2.732 |
|
| 61 to 72 y old |
1.782 |
0.070 |
656.647 |
1 |
<0.001 |
5.944 |
5.186 |
6.812 |
|
| 73 to 85 y old |
2.437 |
0.070 |
1 224.340 |
1 |
<0.001 |
11.434 |
9.976 |
13.107 |
|
| +85 y old |
3.136 |
0.070 |
1 985.781 |
1 |
<0.001 |
23.017 |
20.051 |
26.421 |
|
|
Race
| |||||||||
| White |
|
|
2 120.794 |
4 |
<0.001 |
|
|
|
|
| Black |
0.360 |
0.015 |
574.801 |
1 |
<0.001 |
1.433 |
1.391 |
1.475 |
|
| Asian |
-0.001 |
0.031 |
0.002 |
1 |
0.964 |
0.999 |
0.939 |
1.062 |
|
| Multiracial background |
0.305 |
0.007 |
1 797.757 |
1 |
<0.001 |
1.356 |
1.337 |
1.375 |
|
| Indigenous |
0.648 |
0.059 |
119.225 |
1 |
<0.001 |
1.912 |
1.702 |
2.148 |
|
|
Place of residence
| |||||||||
| Urban |
|
|
166.812 |
2 |
<0.001 |
|
|
|
|
| Rural |
0.200 |
0.016 |
154.125 |
1 |
<0.001 |
1.222 |
1.184 |
1.261 |
|
| Peri-urban |
0.222 |
0.059 |
13.955 |
1 |
<0.001 |
1.249 |
1.111 |
1.403 |
|
| Nosocomial infection |
0.649 |
0.024 |
708.496 |
1 |
<0.001 |
1.914 |
1.824 |
2.007 |
|
|
Clinical symptoms
| |||||||||
| Cough |
-0.160 |
0.009 |
334.333 |
1 |
<0.001 |
0.852 |
0.837 |
0.867 |
|
| Sore throat |
-0.030 |
0.010 |
9.729 |
1 |
0.002 |
0.970 |
0.952 |
0.989 |
|
| Dyspnoea |
0.226 |
0.010 |
488.417 |
1 |
<0.001 |
1.254 |
1.229 |
1.280 |
|
| Respiratory discomfort |
0.262 |
0.009 |
814.625 |
1 |
<0.001 |
1.299 |
1.276 |
1.323 |
|
| Oxygen saturation (<95%) |
0.339 |
0.010 |
1 270.580 |
1 |
<0.001 |
1.404 |
1.378 |
1.431 |
|
| Diarrhoea |
-0.097 |
0.011 |
77.798 |
1 |
<0.001 |
0.908 |
0.889 |
0.928 |
|
| Vomit |
-0.107 |
0.013 |
64.035 |
1 |
<0.001 |
0.899 |
0.875 |
0.922 |
|
| Abdominal pain |
-0.041 |
0.015 |
7.340 |
1 |
0.007 |
0.959 |
0.931 |
0.989 |
|
| Loss of smell |
-0.071 |
0.021 |
11.882 |
1 |
0.001 |
0.931 |
0.894 |
0.970 |
|
| Loss of taste |
-0.240 |
0.020 |
138.046 |
1 |
<0.001 |
0.786 |
0.755 |
0.819 |
|
|
Comorbidities
| |||||||||
| Cardiopathy |
0.118 |
0.008 |
204.878 |
1 |
<0.001 |
1.125 |
1.107 |
1.144 |
|
| Hematologic disorder |
0.289 |
0.034 |
70.148 |
1 |
<0.001 |
1.335 |
1.248 |
1.428 |
|
| Down syndrome |
0.476 |
0.060 |
62.399 |
1 |
<0.001 |
1.609 |
1.430 |
1.810 |
|
| Hepatic disorder |
0.346 |
0.029 |
141.430 |
1 |
<0.001 |
1.413 |
1.335 |
1.496 |
|
| Asthma |
-0.750 |
0.020 |
1 435.782 |
1 |
<0.001 |
0.472 |
0.454 |
0.491 |
|
| Diabetes mellitus |
0.333 |
0.009 |
1 513.319 |
1 |
<0.001 |
1.395 |
1.372 |
1.418 |
|
| Neurological disorder |
0.190 |
0.016 |
149.325 |
1 |
<0.001 |
1.209 |
1.173 |
1.246 |
|
| Chronic respiratory disease |
-0.096 |
0.016 |
36.161 |
1 |
<0.001 |
0.908 |
0.880 |
0.937 |
|
| Immunosuppressive disorder |
0.365 |
0.019 |
374.284 |
1 |
<0.001 |
1.440 |
1.388 |
1.494 |
|
| Renal disease |
0.138 |
0.016 |
76.868 |
1 |
<0.001 |
1.148 |
1.113 |
1.184 |
|
| Obesity |
0.167 |
0.012 |
180.164 |
1 |
<0.001 |
1.182 |
1.153 |
1.211 |
|
| Antiviral drugs to treat the infection |
-0.203 |
0.010 |
400.722 |
1 |
<0.001 |
0.816 |
0.800 |
0.833 |
|
| Need for intensive care unit |
0.814 |
0.008 |
10 883.354 |
1 |
<0.001 |
2.256 |
2.222 |
2.291 |
|
| Need for ventilatory support |
|
|
|
|
<0.001 |
|
|
|
|
| None |
|
|
51 882.806 |
2 |
<0.001 |
|
|
|
|
| Invasive |
2.390 |
0.012 |
37 951.425 |
1 |
<0.001 |
10.915 |
10.655 |
11.180 |
|
| Non-invasive |
0.281 |
0.009 |
899.980 |
1 |
<0.001 |
1.325 |
1.301 |
1.349 |
|
| Discharge criterion (clinical) |
0.086 |
0.014 |
39.463 |
1 |
<0.001 |
1.090 |
1.061 |
1.120 |
|
| Length of hospital stay (days) |
-0.005 |
<0.001 |
333.859 |
1 |
<0.001 |
0.995 |
0.994 |
0.995 |
|
| Constant | -3.925 | 0.070 | 3 109.945 | 1 | <0.001 | 0.020 |
|
||