Table 1.
Comparison of the characteristics of patients triaged as non-severe suspected COVID-19 depending on the presence of pneumonia in the chest X-ray.
| Radiologic pneumonia |
|||||
|---|---|---|---|---|---|
| Yes | No | Univariate | Multivariate | Total | |
| N = 523 | N = 311 | p-value | p-value | N = 834 | |
| Female | 50% (260) | 60% (186) | 0.005 | 53 (446) | |
| Race | |||||
| White | 69% (359) | 62% (194) | 0.06 | 66% (553) | |
| Black | 3% (17) | 6% (19) | 0.05 | 4% (36) | |
| Asian | 1% (5) | 1% (4) | 0.7 | 1% (9) | |
| Hispanic | 27% (139) | 27% (85) | 0.8 | 27% (224) | |
| Age (years) | 55 (15.8) | 46.6 (16.5) | <0.001 | 51.8 (16.6) | |
| Charlson index | 1.9 (1.9) | 1.3 (1.9) | <0.001 | 0.03 | 1.7 (1.9) |
| Active smoker | 5% (26) | 13% (41) | <0.001 | <0.001 | 8% (67) |
| Headache | 47% (97) | 52% (77) | 0.4 | 1.0 | 49% (174) |
| Rhinorrhea | 16% (25) | 25% (25) | 0.1 | 0.06 | 20% (50) |
| Cough | 78% (363) | 77% (215) | 0.9 | 0.3 | 78% (578) |
| Expectoration | 27% (80) | 22% (35) | 0.2 | 0.3 | 25% (115) |
| Fatigue | 72% (206) | 58% (91) | 0.003 | 0.02 | 67% (297) |
| Dyspnea | 54% (221) | 47% (109) | 0.08 | 0.04 | 51% (330) |
| Nausea and/or vomiting | 28% (68) | 25% (33) | 0.5 | 0.4 | 27% (101) |
| Diarrhea | 46% (153) | 36% (61) | 0.03 | 0.03 | 43% (214) |
| Myalgia | 66% (170) | 58% (90) | 0.1 | 0.05 | 63% (260) |
| Chills | 33% (63) | 25% (26) | 0.1 | 0.3 | 30% (89) |
| Anosmia | 39% (84) | 30% (42) | 0.1 | 0.06 | 36% (126) |
| Dysgeusia | 37% (78) | 24% (32) | 0.02 | 0.01 | 32% (110) |
| Fever (>37.7 °C) | 75% (372) | 57% (164) | <0.001 | <0.001 | 68% (536) |
| Febricula (37.3-37.7 °C) | 27% (119) | 23% (57) | 0.2 | 0.2 | 25% (176) |
| Days since first symptom | 8.5 (4.4) | 8.5 (6.5) | 1 | 0.8 | 8.5 (5.3) |
| SBP (mmHg) | 133.5 (18) | 135 (17.6) | 0.2 | 0.006 | 134.1 (17.8) |
| DBP (mmHg) | 77.6 (12.2) | 80 (13) | 0.008 | 0.06 | 78.5 (12.5) |
| HR (beats per minute) | 93.7 (15.3) | 91.9 (17.3) | 0.1 | <0.001 | 93.1 (16.1) |
| RR (breaths per minute) | 19.7 (3.9) | 18.8 (6.1) | 0.01 | 0.06 | 19.4 (4.8) |
| Temperature (°C) | 36.8 (0.9) | 36.5 (0.8) | <0.001 | <0.001 | 36.7 (0.9) |
| Room air SpO2(%) | 97.6 (1.6) | 98.8 (1.3) | <0.001 | <0.001 | 98.1 (1.6) |
| CXR pneumonia triage | 100% (523) | 0% (0) | <0.001 | <0.001 | 63% (518) |
| Admission or death | 91% (476) | 12% (37) | <0.001 | <0.001 | 62% (513) |
| Death | 2% (10) | 0.003% (1) | 0.06 | 0.2 | 1% (11) |
| Admission | 91% (476) | 12% (37) | <0.001 | <0.001 | 62% (513) |
| SARS-CoV-2 PCR positive | 86% (441) | 52% (64) | <0.001 | <0.001 | 79% (505) |
| ED reconsultation 14 days | 3% (15) | 10% (32) | <0.001 | <0.001 | 6% (47) |
| Days to ED reconsultation | 9.5 (3.1) | 6.3 (3.2) | 0.003 | <0.001 | |
| Pneumonia in reconsultation | 4% (13) | – | 2% (13) | ||
N = absolute number, SBP = systolic blood pressure, DBP = diastolic blood pressure, HR = heart rate, RR = respiratory rate, SpO2 = oxygen saturation, CXR = chest X-ray, PCR = polymerase chain reaction, ED = Emergency Department. Dichotomous variables were expressed as absolute frequencies and percentages, and continuous variables as means and standard deviations. Univariate bivariate comparisons for continuous variables used the Student's t-test and for dichotomous variables the Fisher's or Chi-squared tests, as appropriate. Multivariate comparisons used logistic and linear regression to adjust for age, gender, and race.