Table 1.
Characteristics | n (%) | Pleural effusion culture, n (%) | p Value | |
Positive, n=241 | Negative, n=141 | |||
Age (mean ± SD) | 62±20 | 63±21 | 60±19 | 0.20* |
Gender (men/women) | 270/112 | 173/68 | 97/44 | 0.54 |
Visit to diagnosis, median (IQR) | 15 (7–29) | 17 (8–30) | 14 (6–27) | 0.08† |
Underlying diseases | ||||
COPD or current smoker | 92 (24) | 54 (22) | 38 (27) | 0.32 |
Diabetes mellitus | 73 (19) | 52 (22) | 21 (15) | 0.11 |
Cancer | 54 (14) | 45 (19) | 9 (6) | <0.001 |
Renal replacement therapy | 33 (9) | 28 (12) | 5 (4) | 0.007 |
Heart failure | 23 (6) | 19 (8) | 4 (3) | 0.05 |
Past history of tuberculosis | 17 (4) | 8 (3) | 9 (6) | 0.16 |
Liver cirrhosis | 16 (4) | 14 (6) | 2 (1) | 0.04 |
Autoimmune diseases | 10 (3) | 8 (3) | 2 (1) | 0.34 |
HIV seropositive | 8 (2) | 6 (2) | 2 (1) | 0.72 |
Post transplantation | 4 (1) | 3 (1) | 1 (1) | 1.00 |
Effusion site‡ | ||||
Right | 237 (62) | 147 | 90 | 0.46 |
Left | 149 (39) | 98 | 51 |
p Values were calculated using χ2 or Fisher's exact test unless otherwise specified.
Student t test.
Mann–Whitney U test.
Bilateral tuberculous pleurisy in four cases.
COPD, chronic obstructive pulmonary disease.