Table 4 SF-36 subscales and summary scores in patients and the controls with primary school, secondary school and high school/university. Data are expressed as means ± SD and 95% CI

Primary school

Secondary school

High school/university

Mean

SD

95% CI

Mean

SD

95% CI

Mean

SD

95% CI

75.4

21.8

73.8 – 77.1

89.3

14.1

88.1 – 90.5

91.4

13.0

89.4 – 93.3

39.2

20.5

35.7 – 42.7

40.4

20.5

37.9 – 42.9

50.0

19.1

45.8 – 54.3

51.0

25.5

43.1 – 58.9

52.6

17.0

47.4 – 57.8

55.9

18.9

45.8 – 66.0

42.3

24.9

33.0 – 51.6

42.0

18.9

37.3 – 46.7

55.0

19.3

25.0 – 75.0

44.6

17.4

34.9 – 54.3

52.3

19.3

46.1 – 58.5

56.1

12.9

46.1 – 66.0

65.5

38.3

62.6 – 68.4

80.8

32.1

78.0 – 83.5

83.8

30.3

79.4 – 88.3

28.5

13.6

27.2 – 31.9

29.1

15.9

26.1 – 31.1

35.3

18.9

31.0 – 39.5

33.1

33.2

28.9 – 49.3

39.6

25.9

30.7 – 46.5

54.6

31.9

37.6 – 71.6

23.6

25.4

14.1 – 33.0

37.3

25.3

31.0 – 43.5

68.7

37.5

19.0 – 88.4

33.3

30.8

16.2 – 50.4

36.2

23.7

28.6 – 43.8

58.3

27.9

36.8 – 79.8

72.3

21.6

70.6 – 73.9

84.2

17.5

82.7 – 85.8

86.1

15.9

83.8 – 88.5

29.3

17.8

27.3 – 33.3

30.3

16.4

27.3 – 32.4

31.6

17.3

27.7 – 35.5

42.6

18.1

38.0 – 49.2

43.9

12.8

39.0 – 46.8

53.5

19.6

43.0 – 63.9

39.5

20.3

31.9 – 47.1

33.4

16.2

29.4 – 37.4

53.1

18.1

24.1 – 82.0

35.1

14.5

27.0 – 43.2

46.4

13.5

42.1 – 50.8

64.1

18.8

49.6 – 78.6

55.2

18.2

53.8 – 56.6

64.3

17.9

62.7 – 65.8

68.9

14.8

66.7 – 71.1

40.9

19.1

37.7 – 44.2

44.3

19.5

41.8 – 46.7

48.1

20.2

43.6 – 52.6

45.2

22.5

38.3 – 52.2

45.4

20.8

39.0 – 51.7

57.2

21.3

45.8 – 68.6

44.6

16.0

38.6 – 50.6

45.5

17.8

41.1 – 49.9

48.7

2.5

44.7 – 52.7

38.6

15.2

30.1 – 47.1

44.8

17.9

39.1 – 50.6

48.3

9.6

40.8 – 55.7

59.8

16.9

58.5 – 61.1

66.7

15.5

65.3 – 68.0

66.6

15.4

64.3 – 68.9

48.8

24.2

44.7 – 52.9

49.8

23.1

46.9 – 52.6

54.2

22.0

49.3 – 59.1

42.9

19.4

36.9 – 48.9

52.9

16.9

47.7 – 58.0

66.70

13.7

59.4 – 74.0

46.4

13.8

41.2 – 51.5

43.6

19.7

38.7 – 48.5

44.0

11.3

25.9 – 62.0

39.2

22.2

26.8 – 51.5

48.7

20.1

42.2 – 55.1

54.7

17.1

41.6 – 67.9

63.2

40.5

60.1 – 66.3

79.3

33.2

76.4 – 82.2

79.4

31.0

74.9 – 84.0

35.7

42.5

31.4 – 45.9

38.8

40.0

33.8 – 43.8

44.1

43.3

34.5 – 53.8

33.3

26.5

25.1 – 41.4

40.1

26.0

32.2 – 48.0

77.1

31.5

60.2 – 93.9

21.0

25.4

11.5 – 30.5

31.2

27.0

22.5 – 32.9

28.9

31.9

25.8 – 35.6

31.0

26.6

16.2 – 45.8

41.2

28.8

31.9 – 50.4

53.2

23.6

41.0 – 61.3

68.4

19.8

66.9 – 69.9

74.6

20.2

72.9 – 76.3

77.4

18.2

74.7 – 80.1

44.7

21.0

41.1 – 48.3

47.2

21.6

44.5 – 49.9

48.8

20.2

44.3 – 53.3

46.9

19.0

41.1 – 52.8

52.2

19.5

46.2 – 58.1

75.6

19.7

65.1 – 86.1

44.6

19.5

37.2 – 51.9

41.5

18.6

36.9 – 46.1

62.5

17.6

34.3 – 90.6

39.0

8.0

34.6 – 43.5

45.8

10.8

42.3 – 49.3

49.8

18.8

35.4 – 64.3

55.1

15.4

53.9 – 56.2

58.8

15.7

57.4 – 60.1

57.7

14.1

55.6 – 59.8

39.4

20.6

35.9 – 42.9

41.9

20.9

39.3 – 44.5

45.8

20.1

41.4 – 50.3

40.9

20.8

34.5 – 47.3

48.2

15.9

43.4 – 53.1

54.6

11.1

48.7 – 60.6

47.6

15.1

41.9 – 53.3

43.6

16.4

39.5 – 47.6

48.7

10.3

32.3 – 65.1

29.3

19.0

18.7 – 39.8

45.0

18.6

39.0 – 50.9

47.2

15.2

35.5 – 58.9

47.2

8.7

46.5 – 47.9

52.2

7.2

51.6 – 52.8

53.6

5.4

52.8 – 54.4

31.7

5.9

30.7 – 32.7

32.2

5.8

31.4 – 32.9

34.5

6.2

33.1 – 35.8

36.1

9.9

34.1 – 40.2

38.4

6.5

35.4 – 41.4

38.3

9.8

33.0 – 43.5

33.4

8.1

30.4 – 36.4

33.6

5.2

32.3 – 34.9

48.4

5.0

40.3 – 56.5

35.0

6.0

31.6 – 38.3

37.5

7.1

35.2 – 39.7

43.0

4.2

39.8 – 46.2

44.1

8.3

43.4 – 44.7

47.1

7.9

46.4 – 47.7

46.5

7.4

45.4 – 47.6

38.8

12.1

36.7 – 40.8

39.2

11.5

37.7 – 40.6

40.8

12.0

38.1 – 43.5

34.8

7.4

32.5 – 37.1

39.9

7.9

37.5 – 42.3

50.4

8.8

45.7 – 55.1

37.1

4.7

35.3 – 38.8

37.0

7.6

35.1 – 38.9

31.7

6.6

21.1 – 42.4

32.5

8.7

27.6 – 37.3

37.6

7.6

35.1 – 40.0

40.9

7.3

35.3 – 44.6