Patient Age Group  
  29–59 yrs n=23 60–74 yrs n =49 75–91 yrs n=43 Test statistic and p-value
Fatigue measures        
Post-stroke, FSS-7 (1–7), mean (SD) 4.6 (1.1) 3.4 (1.5) 4.3 (1.4) F(2,112)=7.75, p=.001
No/mild fatigue, n (%) 5 (22%) 32 (65%) 17 (39%) χ2(2)=14.0, p=.007
Moderate fatigue, n (%) 10 (43%) 9 (19%) 12 (28%)  
Severe fatigue, n (%) 8 (35%) 8 (16%) 14 (33%)  
Pre-stroke, n (%) 9 (39%) 10 (20%) 15 (35%) χ2(2)=3.57, p=.168
Socio-demographic variables        
Age in years, mean (SD) 47.6 (7.6) 66.6 (4.5) 81.3 (3.9) F(2,112)=334, p<.001
Gender, n (%)       χ2(2)=3.27, p=.195
Men 16 (70%) 31 (63%) 21 (49%)  
Women 7 (30%) 18 (37%) 22 (51%)  
Years of formal education, n (%)       χ2(2)=0.70, p=.704
< 12 years 15 (65%) 36 (73%) 32 (74%)  
≥ 12 years 8 (35%) 13 (27%) 11 (26%)  
In paired relationship, n (%) 20 (87%) 35 (71%) 21 (49%) χ2(2)=10.8, p=.005
Working, n (%) 17 (74%) 11 (22%) 0 (0%) χ2(2)=44.6, p<.001
Clinical variables, n (%)        
Stroke type       χ2(2)=2.41, p=.661
Infarct 17 (74%) 41 (84%) 32 (74%)  
Hemorrhage 1   (4%) 2   (4%) 4   (9%)  
Not detectable 5 (22%) 6 (12%) 7 (16%)  
Stroke location (n=90)       χ2(2)=6.19, p=.403
Right 6 (35%) 14 (34%) 11 (34%)  
Left 8 (47%) 14 (34%) 7 (22%)  
Bilateral 3 (18%) 9 (22%) 8 (25%)  
Unknown 0  (0%) 4 (10%) 6 (19%)  
Use of sleep medication 4 (17%) 11 (22%) 16 (37%) χ2(2)=3.87, p=.144
Clinical variables, mean (SD)        
Physical Functioning, SF-36 (1–100) 68.9 (27.6) 66.3 (31.6)  45.0 (33.8) F(2,112)=6.61, p=.002
Activities of Daily Living, BI (1–20) (n=106) 17.5 (4.7) 18.6 (3.3) 16.7 (4.3) F(2,103)=2.35, p=.101
Sleep Quality, PSQI (0–21) (n=113) 6.8 (4.0) 6.2 (3.4) 7.8 (3.5) F(2,110)=2.40, p=.096
Depression, BDI-II (0-63) (n=111) 11.5 (7.8) 7.6 (7.3) 10.6 (7.4) F(2,108)=2.77, p=.067
Body Mass Index (n=104) 27.8 (6.1) 27.4 (4.2) 23.8 (4.8) F(2,101)=7.15, p=.001
Note. FSS-7 = Fatigue Severity Scale 7 item version; BI = Barthel Index; PSQI = Pittsburgh Sleep Quality Index; BDI-II=Beck Depression Inventory II. Scale range in parentheses.
Table 1: Demographic and clinical characteristics by age group (N=115).