Table 1 KiSMi study participants characteristics

No. enrolled

30

83

Sex

n (%)

n (%)

Female

11 (37)

32 (39)

Male

19 (63)

51 (61)

0.99^a

Age

M (SD)

M (SD)

55 (11.1)

58 (11.5)

0.28^b

BMI

M (SD)

M (SD)

27.6 (4.6)

30.2 (7.0)

0.08^c

Other health features

n (%)

n (%)

History of stones

0 (0)

70 (84)

<0.0001^a

History of UTI

9 (30)

43 (52)

0.05^a

Smoking status

Current smoker

0 (0)

12 (14)

Non-smoker

30 (100)

71 (86)

0.03^a

Comorbidities

Cardiac

3 (10)

8 (10)

0.99^a

Hypertension

8 (27)

32 (39)

0.37^a

Diabetes

3 (10)

12 (14)

0.75^a

Hypothyroidism

3 (10)

9 (11)

0.99^a

Years since antibiotic use

M (SD)

M (SD)

5.53 (5.8)

3.4 (4.0)

0.004^c

Stone removal procedure

n (%)

PCNL

40 (48)

Ureteroscopy

43 (52)

Major stone component

Calcium oxalate

40 (77)

Calcium phosphate

1 (2)

Uric acid

7 (13)

Struvite

3 (6)

Cystine

1(2)

Unknown (not tested)

31