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Table 2 Comparison of sociodemographic and laboratory variables among MDD, BD and healthy controls

From: Characteristics of platelet-associated parameters and their predictive values in Chinese patients with affective disorders

Variables

MDD group (n = 8899)

BD group (n = 5108)

HC group (n = 6847)

F/2

P

P1

P2

P3

P4

P5

P6

Age (year)

44.95 ± 0.193a

39.19 ± 0.215ab

42.82 ± 0.157

211.320

0.000

0.000

0.000

0.000

0.000

0.000

0.000

Sex (male/female)

3193/5709a

2651/2457ab

2863/3984

342.416

0.000

0.000

0.000

0.000

0.000

0.000

0.000

Platelet

239.662 ± 0.665a

237.042 ± 0.894ab

252.994 ± 0.712

129.922

0.000

0.000

0.000

0.000

0.000

0.016

0.047

MPV

9.392 ± 0.011a

9.605 ± 0.016ab

8.699 ± 0.014

1201.846

0.000

0.000

0.000

0.000

0.000

0.000

0.000

PDW

13.764 ± 0.025a

13.859 ± 0.034a

15.931 ± 0.019

2276.150

0.000

0.000

0.000

0.000

0.000

0.042

0.126

PCT

0.208 ± 0.001a

0.211 ± 0.000ab

0.218 ± 0.001

74.552

0.000

0.000

0.000

0.000

0.000

0.000

0.001

Neutrophil

3.367 ± 0.015a

3.867 ± 0.024ab

3.597 ± 0.014

156.076

0.000

0.000

0.000

0.000

0.000

0.000

0.000

Lymphocyte

1.859 ± 0.006a

2.004 ± 0.009b

1.963 ± 0.007

52.257

0.000

0.000

0.000

0.764

1.000

0.000

0.000

RDW

13.691 ± 0.018a

13.501 ± 0.022ab

13.272 ± 0.014

144.082

0.000

0.000

0.000

0.000

0.000

0.000

0.000

Albumin

43.168 ± 0.038a

43.413 ± 0.056ab

45.999 ± 0.033

1629.851

0.000

0.000

0.000

0.000

0.000

0.000

0.000

PLR

140.599 ± 0.607a

130.039 ± 0.711ab

136.981 ± 0.545

20.193

0.000

0.000

0.000

0.000

0.000

0.000

0.000

SII

482.126 ± 3.945a

516.878 ± 5.656ab

492.205 ± 2.910

26.456

0.000

0.013

0.040

0.000

0.000

0.000

0.000

RPR

0.061 ± 0.000a

0.061 ± 0.000a

0.056 ± 0.000

150.147

0.000

0.000

0.000

0.000

0.000

0.713

1.000

PAR

5.578 ± 0.021

5.485 ± 0.021

5.520 ± 0.016

0.719

0.487

0.231

0.693

0.529

1.000

0.671

1.000

  1. HC Healthy controls, MDD Major depressive disorder, BD Bipolar disorder, MPV Mean platelet volume, PDW Platelet distribution width, PCT Plateletcrit, RDW Red blood cell distribution width, PLR Platelet to lymphocyte ratio, SII Systemic immune-inflammation index, RPR RDW to platelet ratio, PAR Platelet to albumin ratio. a, vs. HC group, P < 0.05; b, vs. MDD, P < 0.05, p values after correction. P, comparison among MDD group, BD group and HC group; P1, MDD group vs HC group, p values uncorrected; P2, MDD group vs HC group, p values after correction; P3, BD group vs HC group, p values uncorrected; P4, BD group vs HC group, p values after correction; P5, MDD group vs BD group, p values uncorrected; P6, MDD group vs BD group, p values after correction. Values are represented as mean ± SEM