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Table 1 Characteristics of study participants among total SAAs intake tertiles

From: The relationship between dietary sulfur amino acids intake and severity and frequency of pain in Iranian patients with musculoskeletal pains, 2020

Variables

T1

(n = 58)

T2

(n = 59)

T3

(n = 58)

Total SAAs (mg/day)**

 Median

1981.29

2968.39

4646.96

Age (y)*

18.5 ± 5

20 ± 10

25 ± 15

Gender, n (%)**

 Men

5 (8.5)

17 (29.3)

28 (48.3)

 Woman

54 (91.5)

41 (70.7)

30 (51.7)

Smoking, n (%)

 Yes

5 (8.5)

12 (20.7)

12 (15.5)

 No

54 (91.5)

40 (69.0)

47 (81.0)

 Before

0

6 (10.3)

2 (3.4)

Education, n (%)

 Diploma or less

9 (15.3)

6 (10.3)

9 (15.5)

 Bachelor degree

32 (54.2)

20 (34.5)

22 (37.9)

 Master degree

9 (15.3)

20 (34.5)

16 (27.6)

 Phd or higher

9 (15.3)

12 (20.7)

11 (19.0)

BMI (kg/m2)

24.51 ± 4.03

25.56 ± 4.65

24.46 ± 4.27

Weight (kg)*

64.50 ± 11.47a

72.71 ± 17.21

70.93 ± 15.38

Height (cm)**

162.18 ± 5.63a

168.00 ± 9.44

169.86 ± 9.10

Waist circumference (cm)

83.93 ± 15.76

88.79 ± 20.12

87.22 ± 19.96

WHtR

 Normal

59.3

62.1

56.9

 At risk

40.7

37.9

43.1

Total pain result

13.51 ± 16.97

14.64 ± 15.59

12.98 ± 14.38

Pain subcategories

 Pain sensory

7.88 ± 9.94

8.17 ± 9.22

7.90 ± 8.79

 Pain affective

1.71 ± 2.46

2.31 ± 2.79

1.62 ± 2.29

 Pain miscellaneous

2.88 ± 3.96

2.88 ± 3.34

2.26 ± 3.03

 Pain evaluative

1.03 ± 1.47

1.28 ± 1.65

1.21 ± 1.55

 Pain frequency

1.90 ± 2.38

1.79 ± 1.98

1.53 ± 1.74

Occupation, n (%)

 Manager

5 (8.5)

7 (12.1)

11 (19.0)

 Employee

17 (28.8)

12 (20.7)

10 (17.2)

 Worker

1 (1.7)

0

1 (1.7)

 Housewife

9 (15.3)

7 (12.1)

0.0

 Pensionary

5 (8.5)

4 (6.9)

4 (6.9)

 Other

9 (15.3)

8 (13.8)

15 (25.9)

 Collegian

10 (16.9)

16 (27.6)

17 (29.3)

 No work

3 (5.1)

4 (6.9)

0

Delivery number, n (%)

 0

35 (59.3)

44 (75.9)

50 (86.2)

 1

5 (8.5)

5 (8.6)

2 (3.4)

 2

11 (18.6)

7 (12.1)

4 (6.9)

 3

8 (13.6)

0

1 (1.7)

 4

0

1 (1.7)

1 (1.7)

 9

0

1 (1.7)

0

Delivery type, n (%)

 Natural childbirth

6 (10.2)

2 (3.4)

4 (6.9)

 Cesarean section

18 (30.5)

12 (20.7)

4 (6.9)

 Men

5 (8.5)

16 (27.6)

26 (44.8)

 No delivery

30 (50.8)

28 (48.3)

24 (41.4)

Menopause, n (%)**

9 (15.3)

4 (6.9)

4 (6.9)

Acetaminophen (325/daily), n (%)

4 (0.2)

7 (0.8)

5 (0.5)

  1. SD Standard deviation, BMI body mass index, WHtR waist to height ratio, SAAs sulfur amino acids
  2. Quantitative variables were showed by means ± SD and qualitative variables were showed by number (percentage)
  3. a indicates differences between tertiles
  4. *P value < 0.05 and **P value < 0.001 were considered.
  5. P values resulted from ANCOVA analysis and Chi-square test and were adjusted for energy intake