组别

例数

恶心呕吐

头晕嗜睡

A

25

8 (32.0%)

7 (28.0%)

S1

25

9 (36.0%)

7 (28.0%)

S2

25

7 (28.0%)

8 (32.0%)

S3

25

3 (12.0%)

2 (8.0%)

χ2

4.211

4.825

P值

0.240

0.185