Pleural Fluid Soluble Triggering Receptor Expressed on Myeloid Cells-1 in Complicated and Uncomplicated Parapneumonic Pleural Effusions

Table 1

Patients’ profile and some laboratory findings in patients of the two studied groups.

Mean ± standard deviation	Transudative pleural effusion		Parapneumonic pleural effusion		t or χ ^2	P
	No. = 17		No. = 51
Age (years)	52.0 ± 6.614		49.7 ± 11.855		t = 0.757	0.452
Sex:	No.	Percent	No.	Percent
(i)  Male	13	76.47%	36	70.59%	χ ^2 = 0.219	0.640
(ii)  Female	4	23.53%	15	29.41%
Comorbidities:	No.	Percent	No.	Percent	χ ^2
(i)   Liver diseases	6	35.29%	8	15.69%	2.998	0.083
(ii)   Heart diseases	5	29.41%	7	13.73%	2.159	0.142
(iii)  Renal diseases	4	23.53%	5	9.80%	2.092	0.148
(iv)   COPD	0	0.00%	5	9.80%	1.799	0.180
(v)   Bronchial asthma	0	0.00%	3	5.88%	1.046	0.306
(vi)   Malignant diseases	3	17.65%	4	7.84%	1.327	0.249
Smoking index	172.353 ± 248.99		182.745 ± 273.847		𝑡 = 0.138	0.89
Pleural fluid pH	7.462 ± 0.0788		7.056 ± 0.514		𝑡 = 3.224	0.002*
Pleural fluid glucose (mg/dL)	152.765 ± 39.113		86.608 ± 72.349		𝑡 = 3.567	<0.001*
Serum sTREM-1 (pg/mL)	22.529 ± 6.644		48.373 ± 19.03		𝑡 = 5.466	<0.001*
Pleural fluid sTREM-1 (pg/mL)	23.941 ± 9.542		290.686 ± 187.323		𝑡 = 5.839	<0.001*

*: Significant.