Table 1 Demographic and clinical characteristics.

From: Psychomotor slowing in schizophrenia is associated with aberrant postural control

 

PS

non-PS

HC

Comparison

 

N / Mean ± sd

Test value

p-Value

N total

73

25

27

Sex (N/%) female

36/49%

14/56%

12/44%

X2 = 0.7

0.70

Age (years)

35.9 ± 13.0

23.3 ± 12.2

35.3 ± 12.4

F = 0.0

0.978

BMI

24.8 ± 5.2

25.7 ± 5.1

23.3 ± 3.7

F = 1.7

0.195

Education (years)

13.0 ± 2.4

12.7 ± 1.8

16.1 ± 3.0

F = 18.0

< 0.001*

    

PS vs. HC: p < 0.001*

PS vs. non-PS: p = 0.906

non-PS vs. HC: p < 0.001*

 

Duration of illness (years)

10.0 ± 11.0

8.9 ± 12.1

W = 1027

0.352

Number of episodes

4.5 ± 4.4

6.4 ± 12.0

W = 959

0.708

OLZ eq.

15.4 ± 11.2

14.8 ± 10.2

W = 917

0.974

SRRS

23.4 ± 5.8

8.4 ± 2.8

W = 1825

< 0.001*

mSRRS

10.7 ± 3.1

2.9 ± 1.7

W = 1800

< 0.001*

UPDRS

21.5 ± 11.4

9.0 ± 6.0

W = 1545

< 0.001*

BFCRS

5.2 ± 4.0

1.3 ± 1.6

W = 1557

< 0.001*

NES total

15.8 ± 10.9

10.0 ± 5.5

W = 1155

0.018*

 sensory integration

2.9 ± 2.7

1.7 ± 1.1

W = 1113

0.042*

 motor coordination

2.2 ± 2.4

0.76 ± 1.1

W = 1274

0.001*

 sequencing

4.5 ± 3.4

3.1 ± 2.5

W = 1098

0.059

 others

6.1 ± 5.1

4.5 ± 3.8

W = 1016

0.233

Activity level

11,961 ± 4599υ

19,480 ± 7406

19,706 ± 7493

F = 23.5

< 0.001*

    

PS vs. HC: p < 0.001*

PS vs. non-PS: p < 0.001*

non-PS vs. HC: p = 0.990

 

PANSS total

78.0 ± 16.8

65.7 ± 14.0

W = 1269

0.004*

 Positive

15.4 ± 5.2

16.7 ± 5.1

W = 766

0.233

 Negative

23.1 ± 6.4

15.3 ± 4.0

W = 1571

< 0.001*

 General

39.4 ± 9.1

33.7 ± 8.0

W = 1241

0.007*

BNSS total

42.6 ± 13.2

25.6 ± 10.2

W = 1567

< 0.001

  Anhedonia

10.8 ± 4.2

6.5 ± 3.6

W = 1444

< 0.001

  Distress

2.9 ± 1.7

2.0 ± 1.5

W = 1225

0.010*

  Asocial

6.7 ± 2.4

5.6 ± 2.7

W = 1102

0.121

  Avolition

6.9 ± 2.7

5.3 ± 2.5

W = 1243

0.007*

  Affect

10.6 ± 3.8

5.0 ± 3.1

W = 1588

< 0.001*

  Alogia

4.7 ± 3.2

1.2 ± 1.8

W = 1503

< 0.001*

  1. Note. Sample sizes vary due to missing data: ∆N = 70, •N = 71, υN = 66, †N = 24.
  2. PS patients with psychomotor slowing, non-PS patients without psychomotor slowing, HC healthy controls, N number of participants, sd standard deviation, BMI body mass index, OLZ eq. olanzapine equivalent in mg/day, SRRS Salpêtrière Retardation Rating Scale, mSRRS motor part of the SRRS, UPDRS Unified Parkinson’s Disease Rating Scale part III, BFCRS Bush-Francis Catatonia Rating Scale, NES Neurological Evaluation Scale, PANSS Positive And Negative Syndrom Scale, BNSS Brief Negative Symptom Scale.
  3. * p < 0.05.