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Table 1 Baseline characteristics of the Rafsanjan cohort participants with and without kidney stone

From: Risk factors of kidney stone disease: a cross-sectional study in the southeast of Iran

Characteristics

Total (n = 9932)

Kidney stone (n = 2392)

No kidney stone (n = 7540)

Age—years (Mean ± SD)

49.94 ± 9.56

51.02 ± 9.48

49.59 ± 9.56

Age—no. (%)

 35–44

3433 (34.57)

725 (30.31)

2708 (35.92)

 45–54

3028 (30.49)

723 (30.23)

2305 (30.57)

 55–64

2745 (27.64)

735 (30.73)

2010 (26.66)

 ≥ 65

726 (7.31)

209 (8.74)

517 (6.86)

Gender—no. (%)

 Female

5310 (53.46)

1132 (47.32)

4178 (55.41)

 Male

4622 (46.54)

1260 (52.68)

3362 (44.59)

Education—no. (%)

 Illiterate

948 (9.55)

245 (10.24)

703 (9.33)

 Elementary

2537 (25.56)

640 (26.76)

1897 (25.18)

 Guidance school and Diploma

4820 (48.55)

1102 (46.07)

3718 (49.34)

 College

1622 (16.34)

405 (16.93)

1217 (16.15)

Physical activity (mean ± SD)

38.79 ± 6.32

38.85 ± 6.30

38.77 ± 6.33

Alcohol consumption—no. (%)

 Yes

1352 (13.64)

361 (15.13)

991 (13.17)

 No

8599 (86.36)

2025 (84.87)

6534 (86.83)

Cigarette smoking—no. (%)

 Yes

2542 (25.59)

628 (26.25)

1914 (25.38)

 No

7390 (74.41)

1764 (73.75)

5626 (74.62)

Hookah smoking—no. (%)

 Yes

1718 (17.30)

466 (19.48)

1252 (16.60)

 No

8214 (82.70)

1926 (80.52)

6288 (83.40)

Opium consumption—no. (%)

 Yes

2378 (23.94)

616 (25.75)

1762 (23.37)

 No

7554 (76.06)

1776 (74.25)

5778 (76.63)

Drinking of purified water in lifetime—no. (%)

 Yes

4692 (47.47)

1005 (42.16)

3687 (49.16)

 No

5192 (52.53)

1379 (57.84)

3813 (50.84)

Hypertension—no. (%)

 Yes

2235 (22.50)

668 (27.93)

1567 (20.78)

 No

7697 (77.50)

1724 (72.07)

5973 (79.22)

BMI—no. (%)

 < 25

2865 (28.87)

610 (25.51)

2255 (29.94)

 25–29.9

4069 (41.01)

1025 (42.87)

3044 (40.41)

 ≥ 30

2989 (30.12)

756 (31.62)

2233 (29.65)

Diabetes mellitus—no. (%)

 Yes

1933 (19.46)

576 (24.08)

1357 (18.00)

 No

7999 (80.54)

1816 (75.92)

6183 (82.00)

WSI—no. (%)

 Low

2720 (27.41)

600 (25.09)

2120 (28.15)

 Low-middle

2462 (24.81)

608 (25.43)

1854 (24.62)

 Middle-high

2780 (28.02)

720 (30.11)

2060 (27.35)

 High

1960 (19.75)

463 (19.36)

1497 (19.88)

  1. BMI body mass index, WSI wealth score index