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Table 2 Baseline model parameters of participants in the original SPEAK cohort and in RATS-3

From: Validation of a prediction model for long-term outcome of aphasia after stroke

 

SPEAK cohort (n= 147)

Derivation cohort

RATS-3 cohort (n= 131)

Validation cohort

Age, mean (SD), in years

67 (15)

65 (12)

Sex, n (%female)

78 (53%)

56 (43%)

Level of education, n (%)

 High ■

55 (42%)

60 (46%)

 Low▲

74 (57%)

71 (54%)

 Unknown ♦

2 (2%)

0

Type of stroke, n (%)

 Non-cardio-embolic infarction

84 (57%)

81 (62%)

 Cardio-embolic infarction

42 (29%)

23 (18%)

 Intracerebral hemorrhage

21 (14%)

24 (18%)

 Unknown ♦

0

3 (2%)

Time since onset to inclusion, mean (range), in days

4 (2–6)

8 (1–18)

Barthel Index, median (IQR) ♦

15 (7.75–20)

16 (6–20)

ScreeLing Phonology score, mean (SD)â—‹

14 (6)

15 (6.5)

ASRS-scores at baseline, n (%)

 Score 0

18 (12%)

17 (13%)

 Score 1

28 (19%)

21 (16%)

 Score 2

33 (22%)

28 (21%)

 Score 3

26 (18%)

38 (29%)

 Score 4

27 (18%)

27 (21%)

 Score 5

3 (2%)

0

 Missing

12 (8%)

0

  1. ■ High = senior vocational education, higher education or university
  2. ▲ Low = no/unfinished elementary school, elementary school, unfinished junior secondary vocational education or junior secondary vocational education
  3. ♦ Imputed scores used for analysis: level of education = low; type of stroke = non-cardio-embolic infarction; Barthel Index score = 13 (n = 14)
  4. â—‹ ScreeLing Phonology scores range from 0 to 24