Table 2 Descriptive statistics of four extracted factors of the 25-somatization symptoms, anxiety, depression, stress and big five personality traits based on the different Departments of Isfahan University of Medical Sciences and Health Services (IUMS), Iran (the SEPAHAN project), stratify on the sex and age (n = 4763)

9.1 (2.93)

10.8 (2.55)

< 0.001^*

10.9 (2.76)

0.028

3.6 (1.05)

3.9 (1.19)

< 0.001^*

3.7 (1.16)

0.032

3.5 (1.35)

4.0 (1.15)

< 0.001^*

3.8 (1.23)

0.58

2.4 (0.72)

2.4 (0.71)

0.242

2.4 (0.71)

< 0.001

0.2 (0.17)

0.3 (0.17)

< 0.001^*

0.2 (0.18)

0.002

0.1 (0.12)

0.2 (0.12)

< 0.001^*

0.1 (0.11)

0.001

0.2 (0.21)

0.3 (0.22)

< 0.001^*

0.3 (0.23)

0.275

17.6 (6.87)

19.7 (8.76)

< 0.001^*

17.9 (7.33)

< 0.001

29.9 (6.85)

28.4 (7.15)

< 0.001^*

10.9 (8.23)

0.233

23.7 (5.36)

24.3 (5.15)

< 0.001^*

23.2 (5.45)

< 0.001

30.3 (6.96)

31.7 (6.53)

< 0.001^*

30.8 (6.86)

0.001

36.0 (7.18)

36.4 (7.38)

0.056

36.1 (6.55)

0.09