Group

Number of cases

Average age (years)

Male (cases)

Female (cases)

χ² value

P value

The treatment group

122

43.46 ± 11.56

50

72

0.1782

0.6729

The control group

101

45.74 ± 11.58

52

49

7.9344

0.0049

χ² or t value

3.9552

0.7741

2.4553

-

-

P value

0.0467

0.2209

0.1171

-

-