1/week

1/2 weeks

1/4 weeks

1/6 weeks

<1/8 weeks

Total

χ²

P

1 month before baseline

CAU

7

3

28

1

10

49

10.99

0.05

CM

26

6

24

1

7

64

1 month before 1 month

CAU

14

5

20

0

7

46

15.11

<0.01

CM

21

2

41

1

0

65

1 month before 3 month

CAU

13

3

23

1

6

46

11.36

0.02

CM

31

4

28

1

0

64

1 month before 6 month

CAU

13

2

24

2

6

47

5.58

0.23

CM

31

2

22

2

5

62

1 month before 12 month

CAU

17

4

18

0

4

43

2.57

0.63

CM

30

5

20

2

5

62