Table 6.

Correlation of TREM-2 expressions on myeloid cell surfaces in BALF of PS patients and the 25(OH)D vitamin serum levels.

Correlation of TREM-2 expressions and serum D-25 levels	(1) Total number	(2) Percentage	(3) MFI	(4) Total expression (min-max data transformation)
P	0.4277∗	0.0622∗∗	0.3801∗	0.0457∗
R	0.1241	0.2742	0.1373	0.3064
95% CI	−0.1929–0.4169	−0.01417–0.5204	−0.1790–0.4279	−0.002567–0.562

Total expression: total expression as the sum of variables after min-max data normalization; ^∗Spearman's correlation, ^∗∗Pearson's correlation.