Table 1 Paired tests between follow-up and baseline samples in PD and HCs (significant test results are printed in bold).

From: Gut bacterial tyrosine decarboxylase associates with clinical variables in a longitudinal cohort study of Parkinsons disease

 

Paried tests (follow-up–baseline)

  
 

PD

Control

PD on medication

 

Paired mean difference

Baseline mean ± SD (n)

Follow-up mean ± SD (n)

T test

Wilcoxon

McNemar

FDR

Paired mean difference

Baseline mean ± SD (n)

Follow-up mean ± SD (n)

T test

Wilcoxon

McNemar

FDR

Baseline (%)

Follow-up (%)

tdc-gene abundance

 tdc-gene abundance (outliers removed)

2.2E−06

1.5E−6 ± 1.3E−6 (55)

3.7E−6 ± 2.6E−6 (55)

 

9.7E−07

 

n.a.

8.61E−07

2.2E−6 ± 2.2E−6 (54)

3.1E−6 ± 2.7E−6 (54)

 

0.167

 

n.a.

  

Gastrointestinal symptoms

 Wexner total score

0.72

5.66 ± 4.01 (67)

6.37 ± 4.63 (67)

 

0.033

 

0.059

−0.54

2.92 ± 2.61 (65)

2.38 ± 2.58 (65)

 

0.010

 

0.030

  

 Rome III (constipation and defecation)

−0.01

7.37 ± 5.96 (67)

7.36 ± 5.17 (67)

 

0.685

 

0.685

−0.22

2.97 ± 3.60 (65)

2.75 ± 3.60 (65)

 

0.651

 

0.977

  

Anti-PD medication exposure

 LEDD (mg)

116.40

444.2 ± 315.6 (66)

560.6 ± 294.0 (66)

 

1.8E−06

 

3E−05

         

Levodopa

 Levodopa IR (mg)

54.10

99.63 ± 159.46 (67)

153.73 ± 204.92 (67)

 

0.028

 

0.221

       

35.8

41.8

 Duodopa (mg)

19.33

0.00 ± 0.00 (66)

19.33 ± 157.06 (66)

 

0.317

 

0.708

       

0.0

1.5

 Levodopa CR (mg)

−8.96

47.76 ± 157.98 (67)

38.81 ± 115.41 (67)

 

1.000

 

1.000

       

11.9

14.9

 Levodopa (with entacapone) (mg)

19.03

88.06 ± 220.17 (67)

107.09 ± 226.33 (67)

 

0.513

 

0.872

       

14.9

22.4

COMT inhibitors

 Entacapone (mg)

49.25

146.27 ± 357.74 (67)

195.52 ± 385.51 (67)

 

0.319

 

0.708

       

14.9

22.4

MAO inhibitors

              

0.0

0.0

 Selegeline (mg)

−0.51

4.10 ± 4.84 (67)

3.59 ± 4.74 (67)

 

0.348

 

0.708

       

43.3

38.8

 Rasagiline (mg)

0.06

0.25 ± 0.44 (67)

0.31 ± 0.47 (67)

 

0.102

 

0.434

       

25.4

31.3

Dopamine agonists

 Rotigotine (mg)

0.42

0.00 ± 0.00 (67)

0.42 ± 1.62 (67)

 

0.039

 

0.221

       

0.0

7.5

 Pramipexole (mg)

−0.06

0.62 ± 0.82 (67)

0.56 ± 0.88 (67)

 

0.613

 

0.885

       

43.3

38.8

 Ropinirole (mg)

0.04

3.15 ± 5.18 (67)

3.19 ± 6.02 (67)

 

0.951

 

1.000

       

34.3

29.9

 Bromocriptine (mg)

n.a.

0.15 ± 1.22 (67)

0.15 ± 1.22 (67)

 

1.000

 

1.000

       

1.5

1.5

Other medication

 Amantadine (mg)

1.49

6.72 ± 40.73 (67)

8.21 ± 38.53 (67)

 

1.000

 

1.000

       

3.0

4.5

 Biperiden (mg)

−0.11

0.21 ± 0.94 (67)

0.10 ± 0.55 (67)

 

0.345

 

0.708

       

6.0

4.5

 Exelon (mg)

n.a.

0.00 ± 0.00 (67)

0.00 ± 0.00 (67)

 

1.000

 

1.000

       

0.0

0.0

 Use of anacidic (yes/no)

−3%

6/61 (67)

4/63(67)

  

0.625

0.885

−11%

7/58 (65)

0/65 (65)

  

0.016

0.032

9.0

6.0

 Use of anticholinergic (yes/no)

−4%

6/61 (67)

3/64(67)

  

0.375

0.708

2%

0/65 (65)

1/65 (65)

  

1.000

1.000

9.0

4.5

  1. Paired T test for normally distributed paired data, paired Wilcoxon test for non-normally distributed paired data, and McNemar for binary distributed paired data. The p values were corrected for false discovery rate (FDR) per section.
  2. n.a. not applicable.