Table 2.
Comparison of demographics and clinical course between the CXR(−)LDCT(+) and CXR(+)LDCT(+) groups
| Variables | CXR(−)LDCT(+) (n = 49) | CXR(+)LDCT(+) (n = 111) | p-value | |
|---|---|---|---|---|
| Age (years) | 77.0 ± 9.4 | 75.1 ± 9.5 | 0.044 |
|
| Sex (M : F) | 17 : 32 | 69 : 42 | 0.001 |
|
| Comorbidity | 19/49 (38.8%) | 66/111 (59.5%) | 0.048 |
|
| 1a | 15 (30.6%) | 39 (35.1%) | |
|
| 2a | 4 (4.1%) | 22 (19.8%) | |
|
| 3a | 0 | 5 (4.5%) | |
|
| Hospitalization | 27/49 (55.1%) | 83/94b (88.3%) | 0.000 |
|
| Non-ICU | 23/49 (46.9%) | 49/94 (52.1%) | |
|
| ICU | 4/49 (8.2%) | 34/94 (36.1%) | |
|
| Antibiotic therapy | 32/49 (65.3%) | 104/105c (99.0%) | 0.000 |
|
| Per oral | 5/49 (10.2%) | 8/105 (7.6%) | |
|
| Intravenous | 27/49 (55.1%) | 96/105 (91.4%) | |
|
| Mortality | 1/49 (2.0%) | 16/88d (18.2%) | 0.001 |
CXR(−)LDCT(+), normal or equivocal findings on CXR but positive on LDCT; CXR(+)LDCT(+), positive findings on both CXR and LDCT; F, female; ICU, intensive care unit; M, male.
a
Number of comorbid illnesses.
b
Self-discharge or transfer: 17 of the total 111 patients undergoing CXR(−)LDCT(+).
c
Self-discharge or transfer without medication: 6 of the total 111 patients.
d
Unavailable to assess mortality due to self-discharge or transfer: 23 of the total 111 patients.