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| Characteristics | PA, n=22 | PCD, n=20 | Total, n (%) | P value (NS: Not significant) |
|---|---|---|---|---|
| Number | *NS | |||
| Single | 16 | 16 | 32 (76.2) | |
| Multiple | 6 | 4 | 10 (23.8) | |
| Site | * NS | |||
| Right lobe | 15 | 10 | 25 (59.5) | |
| Left lobe | 1 | 6 | 7 (16.7) | |
| Bi-lobar | 6 | 4 | 10 (23.8) | |
| Size | †<0.001 | |||
| Diameter of abscess (mm) | ‡0.012 | |||
| Mean | 53.7 | 72.4 | – | |
| ± SD | ± 20.1 | ± 36.3 | ||
| Median | 50 | 64.5 | – |
* Fisher’s Exact Test
† Shapiro-Wilk normality test
‡ Kruskal-Wallis rank sum test
