NIHSS score

All

patients

Group I

(n = 20)

Group II

(n = 20)

Group III

(n = 20)

F/χ²#

P value

On admission

Mean ± SD

7.03 ± 4.46

5.30 ± 2.62

6.45 ± 3.56a

9.35 ± 5.74ab

Range

1 - 18

1 - 10

2 - 17

2 - 18

4.977

0.010*

24 hrs after admission

Mean ± SD

6.20 ± 2.25

4.05 ± 2.09

5.30 ± 3.88a

9.25 ± 3.12ab

Range

1 - 20

1 - 7

1 - 19

1 - 20

6.301

0.003*

7 days after onset of illness

Mean ± SD

5.02 ± 2.12

1.45 ± 0.99

2.95 ± 1.00a

10.65 ± 5.03ab

Range

0 - 34

0 - 3

0 - 28

0 - 34

7.063

0.002*