CONTROL

PROGRAM

Mean

SD

Mean

SD

Shandong

pre-program

2.57

1.43

2.66

1.39

post-program

2.52

1.41

3.71

1.69

Qinghai

pre-program

2.69

1.40

2.38

1.31

post-program

2.50

1.38

3.11

1.58