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Table 1 Socio-demographic characteristics, anthropometric measures, and energy intakes among 60 prostatic cancer cases and 60 hospital-based controls

From: The association between dietary acid load and odds of prostate cancer: a case-control study

Variables

Total

Case

control

p-value

Age (year)

   

0.38

 < 50

12 (10.0)

6 (10.0)

6 (10.0)

 

 50–60

24 (20.0)

15 (25.0)

9 (15.0)

 

 ≥ 60

84 (70.0)

39 (65.0)

45 (75.0)

 

Total energy intake (kcal/d)

2654.18 ± 655.68

2712.24 ± 593.48

2596.10 ± 712.77

0.33

BMI (kg/m2)

25.35 ± 3.57

24.84 ± 3.64

25.85 ± 3.46

0.12

PRAL (mEq/d)

-8.44 ± 25.69

-2.67 ± 29.63

-14.21 ± 19.64

0.01

NEAP (mEq/d)

45.65 ± 14.55

49.06 ± 13.22

42.24 ± 15.13

0.01

Ethnicity

   

0.65

 Fars

94 (78.3)

48 (80.0)

46 (76.7)

 

 Non-Fars

26 (21.7)

12 (20.0)

14 (23.3)

 

Job

   

0.58

 Employment

71 (59.2)

34 (56.7)

37 (61.7)

 

 Unemployment

49 (40.8)

26 (43.3)

23 (38.3)

 

Smoking status

   

0.67

 Yes *

16 (26.7)

14 (23.3)

16 (27)

 

 No

44 (73.3)

46 (76.7)

16 (27)

 

Education levels

   

0.09

 Under diploma and illiterate

73 (60.8)

41 (68.3)

32 (53.3)

 

 Diploma and academic

47 (39.2)

19 (31.7)

28 (46.7)

 

Physical activity levels

   

0.02

 Little or never

35 (29.2)

23 (38.3)

12 (20.0)

 

 Moderate

49 (40.8)

25 (41.7)

24 (40.0)

 

 High

36 (30.0)

12 (20.0)

24 (40.0)

 

Antihyperlipidemic drug user

   

1.00

 Yes

32 (26.7)

6 (10.0)

6 (10.0)

 

 No

88 (73.3)

54 (90.0)

54 (90.0)

 

Antihypertensive drug user

   

0.21

 Yes

12 (10.0)

19 (31.7)

13 (21.7)

 

 No

108 (90.0)

41 (68.3)

47 (78.3)

 

Aspirin user

   

0.26

 Yes

25 (20.8)

10 (16.7)

15 (25.0)

 

 No

95 (79.2)

50 (83.3)

45 (75.0)

 
  1. A) PRAL, potential renal acid load; NEAP, net endogenous acid production; BMI, body mass index
  2. B) Data are presented as mean ± standard deviation or Number (%)
  3. C) *Current smokers and ex-smokers
  4. D) Independent sample t-test or Mann-Whitney U-test were used for comparison of quantitative variables
  5. E) Chi-square test or Fisher’s exact test were used for comparison of qualitative variables