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. 2021 Jul 28;42(11):4767–4770. doi: 10.1007/s10072-021-05489-4

Table 1.

Baseline demographics and changes of parameter of Parkinson's disease characteristics and the change from baseline to 16th week

Placebo group (n = 8) Hydrogen gas group (n = 7) Mann–Whitney U test p
Modified Hohen and Yahr stage Mean (SD) 2.5 (0.5) 2.0 (0.6)  > 0.05
Age Mean (SD) 66.4 (10.3) 65.9 (9.4)  > 0.05
Male: female n 3:5 7:0
Onset age Mean (SD) 56.8 (11.8) 56.7 (8.7)  > 0.05
Disease duration (years) Mean (SD) 10.0 (6.9) 9.1 (7.1)  > 0.05
Levodopa (mg) Mean (SD) 431.3 (192.7) 371.4 (256.3)  > 0.05
Wearing off +  n 3 1

MDS-UPDRS

Total

Mean (SD) 47.8 (23.9) 34.9 (18.6)  > 0.05
  Part I Mean (SD) 7.6 (4.6) 5.4 (2.1)  > 0.05
  Part II Mean (SD) 9.8 (6.5) 5.9 (5.6)  > 0.05
  Part III Mean (SD) 28.8 (14.8) 22.0 (10.6)  > 0.05
  Part IV Mean (SD) 1.6 (2.1) 1.6 (2.8)  > 0.05
PDQ-39 Mean (SD) 48.9 (25.9) 22.4 (19.9) 0.021
Urine N1,N8-diacetylspermidine (ng/mgCr) Mean (SD) 9.4 (3.0) 9.4 (2.4)  > 0.05
N1,N8-diacetylspermidine (pmol/100 µl serum) Mean (SD) 0.38(0.16) 0.31(0.06)  > 0.05

Inhalation time

Hours

mean (SD) 203.1 (23.0) 185.0 (26.1)  > 0.05
Change from the baseline to the 16th Week

MDS-UPDRS

Total

Mean (SD) 0.8 (10.3) 1.9 (13.1)  > 0.05
  Part I Mean (SD) 0.0 (3.8) -0.1 (2.8)  > 0.05
  Part II Mean (SD) 0.9 (2.1) 2.4 (4.0)  > 0.05
  Part III Mean (SD) –1.8 (4.7) 3.0 (9.0)  > 0.05
PDQ-39 Mean (SD) –6.9 (24.7) 4.9 (8.7)  > 0.05
Urine 8-hydroxy-2-deoxyguanosine (ng/mgCr) Mean (SD) –0.3 (4.8) 0.4 (2.1)  > 0.05
N1,N8-diacetylspermidine (pmol/100 µl serum) Mean (SD) -0.01(0.08) 0.04(0.08)  > 0.05

MDS-UPDRS Movement Disorder Society Unified Parkinson’s disease rating scale, PDQ-39 Parkinson’s disease Questionnaire-39