Protocol

Low

Moderate

Intense

Total

p

Pr1

2

5.41%

3

8.11%

32

86.49%

37

<0.0001

Pr2

1

2.38%

9

21.43%

32

76.19%

42

Pr3

0

0.00%

7

15.56%

38

84.44%

45

Pr4

6

14.63%

22

53.66%

13

31.71%

41