Average ± SDa

Min

Max

IC 95%

p value

Stage I (n = 43)

3.88 ± 1.79

3.44

4.30

3.823 - 3.933

<0.0001

Stage II (n = 35)

4.76 ± 1.11

3.38

7.10

4.382 - 5.146

Stage III (n = 9)

5.40 ± 0.94

3.46

6.65

4.662 - 6.115

Total (n = 87)

4.39 ± 0.94

3.38

7.10

4.191 - 4.591