Groups Comparison

LS Means Diff.

LS SE

95% CI

p-value

1 vs 4

15.85

1.41

12.16

19.53

<0.0001^*

Groups

LS Mean

1^a

20.72

2^a

18.91

3^b

7.93

4^b

4.87

2 vs 4

14.04

1.38

10.42

17.65

<0.0001^*

1 vs 3

12.79

1.15

9.79

15.79

<0.0001^*

2 vs 3

10.98

1.13

8.04

13.92

<0.0001^*

3 vs 4

3.06

1.38

-0.54

6.66

0.1254

1 vs 2

1.81

1.16

-1.22

4.84

0.4048