Table 1 Description of the sample of the RIPS and STRATEGY databases.

From: Prediction of the functional outcome of intensive inpatient rehabilitation after stroke using machine learning methods

Variables

RIPS database (training and internal validation test set)

STRATEGY database (external validation test set)

p-value

Mean (std)/median [IQR] or frequencies (%)

N

Mean (std)/median [IQR] or frequencies (%)

N

Variables at admission

 

 Demographics

  Age

80.0 [15.0]

220

79.0 [17.0]

165

0.507

  Sex (women)

112 (50.9%)

220

92 (55.8%)

165

0.346

  Educational level

8.0 [8.0]

205

8.0 [8.0]

157

0.449

  Cohabitation (yes)

144 (74.6%)

193

117 (70.9%)

165

0.432

  Centre

Firenze: 125 (58.8%)

220

Firenze: 165 (91.7%)

165

Massa: 34 (15.5%)

 

Fivizzano: 13 (5.9%)

La Spezia: 48 (21.8%)

 Description of the event

  Aetiology (ischaemic)

175 (79.5%)

220

132 (80.0%)

165

0.913

  Time from the event (days)

11.0 [8.0]

220

17.0 [10.0]

165

< 0.001

  Recurrent event (yes)

30 (13.8%)

217

22 (13.4%)

164

0.908

  Side of the lesion

Right: 96 (46.4%)

207

Right: 79 (50.3%)

157

0.227

Left: 96 (46.4%)

Left: 73 (46.5%)

Both: 15 (7.2%)

Both: 5 (3.2%)

  Site of the lesion

Unknown: 16 (7.3%)

220

Unknown: 11 (6.7%)

165

< 0.001

Sub-tentorial: 24 (10.9%)

Sub-tentorial: 63 (38.2%)

Supra-tentorial: 172 (78.2%)

Supra-tentorial: 60 (36.4%)

Both: 8 (3.6%)

Both: 31 (18.8%)

 Clinical assessment

  Reduced vigilance and coma (yes)

14 (6.4%)

220

2 (1.2%)

165

0.012

  Clinical instability (yes)

21 (9.5%)

220

14 (8.6%)

162

0.762

  Delirium (yes)

12 (5.5%)

220

3 (1.8%)

165

0.068

  Acute infection (yes)

26 (11.8%)

220

15 (9.1%)

165

0.391

  Depression (yes)

58 (26.4%)

220

36 (22.0%)

164

0.320

  Dysphagia (yes)

116 (52.7%)

220

63 (38.2%)

165

0.005

  Presence of anaemia (yes)

76 (34.5%)

220

23 (13.9%)

165

< 0.001

  Malnutrition (yes)

13 (5.9%)

220

2 (1.2%)

165

0.018

  SNG/PEG (yes)

21 (9.5%)

220

18 (10.9%)

165

0.661

  Bedsores (yes)

26 (11.8%)

220

8 (4.8%)

165

0.017

  Bladder catheter (yes)

90 (40.9%)

220

47 (28.5%)

165

0.012

  Incontinence (yes)

85 (38.6%)

220

15 (12.0%)

125

< 0.001

  Central venous catheter (yes)

9 (4.1%)

220

3 (1.8%)

165

0.204

  Tracheostomy (yes)

1 (0.5%)

220

0 (0%)

165

  Dialysis (yes)

4 (1.8%)

220

0 (0%)

165

  Pain (yes)

47 (21.4%)

220

26 (15.9%)

164

0.173

  CIRS_CCI

21.4 [14.3]

212

16.7 [11.1]

136

< 0.001

  NIHSS

7.0 [8.0]

218

5.5 [6.0]

164

0.132

  SDC

3.0 [2.0]

220

4.0 [1.0]

160

0.006

 Psycho-social assessment

  MoCA_MMSE

22.5 [8.4]

174

24.0 [7.0]

136

0.018

  mFWC

6.0 [0.0]

133

6.0 [1.0]

156

0.003

  FAI

28.0 [8.0]

132

26.0 [15.0]

164

0.197

 Physiotherapy assessment

  mBI

26.0 [43.0]

219

42.0 [35.0]

163

< 0.001

  TCT

48.0 [75.0]

209

48.0 [63.0]

163

0.587

  FAC

0.0 [2.0]

210

1.0 [2.0]

163

0.002

  mRS_anamnestic

0.0 [1.0]

208

0.0 [1.0]

164

0.603

  mRS

4.0 [1.0]

209

4.0 [0.0]

163

0.264

  SPPB

0.0 [2.0]

206

0.0 [1.0]

163

0.159

  MAS_UL

0.0 [0.0]

201

0.0 [0.0]

159

0.961

  MAS_LL

0.0 [0.0]

200

0.0 [0.0]

158

0.044

  FMA-M_MI_UL

59.1 [80.3]

188

66.0 [37.0]

159

0.625

  FMA-M_MI_LL

58.8 [55.9]

187

65.0 [33.0]

159

0.469

 Outcome at discharge

  mBI

62.5 [52.0]

220

78.0 [37.0]

165

0.003

  Length of stay (days)

32.00 [28]

216

34 [18.0]

165

0.359

  Time from event (days)

47.0 [30.0]

216

52.0 [23.0]

165

0.001

  1. CCI Charlson Comorbidity Index, CIRS Cumulative Index Rating Scale, FAC Functional Ambulation Category, FAI Franchay Activity Index, FMA-M Fugl-Meyer Assessment, motricity section, IQR Interquartile Range, LL Lower Limbs, MAS Modified Ashworth Scale, mBI modified Barthel Index, mFWC modified Functional Walking Classification, MI Motricity Index, MMSE Mini-Mental State Examination, MoCA Montreal Cognitive Assessment, mRS modified Rankin Scale, N Numerosity, NIHSS National Institutes of Health Stroke Scale, SDC Communication Disability Scale, SPPB Short Physical Performance Battery, std standard deviation, TCT Trunk Control Test, UL Upper Limbs.