Research Article

Development and Validation of a Multivariable Predictive Model for Mortality of COVID-19 Patients Demanding High Oxygen Flow at Admission to ICU: AIDA Score

Table 1

Characteristics of patients in both development and validation cohorts.

Patient characteristicsDevelopment cohort ()Validation cohort ()Difference95% CI for the difference

Gender,(%)
 Male110 (68.8)206 (67.8)-0.010-0.100 to 0.080
 Female50 (31.3)98 (32.2)
Age, -1.559-4.067 to 0.949
CT score, 1.3940.009 to 2.778
Mechanic ventilation, (%)107 (66.9)209 (69.0)-0.021-0.111 to 0.069
Comorbidities,(%)
 Hypertension109 (69.4)203 (66.8)0.027-0.064 to 0.117
 Diabetes52 (33.1)94 (31.0)0.021-0.069 to 0.111
 Obesity14 (8.9)62 (20.4)-0.115-0.168 to -0.044
 HOBP8 (5.1)13 (4.3)0.008-0.032 to 0.049
 Asthma6 (3.8)14 (4.6)-0.008-0.047 to 0.032
 Coronary disease28 (17.8)61 (20.1)-0.022-0.099 to 0.054
 Cardiomyopathy14 (8.9)24 (7.9)0.010-0.043 to 0.063
Total number of patients with comorbidities, (%)120 (75.9)235 (77.3)-0.014-0.095 to 0.068
Total number of patients with 2+ comorbidities, (%)72 (45.6)137 (45.1)0.005-0.091 to 0.101
Tocilizumab, (%)38 (23.8)51 (16.8)0.070-0.006 to 0.145