Table 1 Pre-donation characteristics of right and left donor nephrectomy groups

Age at donation in years

27.85 ± 5.73

29.25 ± 4.57

0.198

Number of pregnancies before donation

M ± SD

1.83 ± 1.45

2.3 ± 1.83

0.159

Median (min.-max.)

2 (0–5)

2 (0–8)

0.16

Frequency

0.741

None

15 (25%)

8 (20%)

One

10 (16.7%)

6 (15%)

Two

16 (26.7%)

10 (25%)

Three

10 (16.7%)

5 (12.5%)

Four

7 (11.6%)

7 (17.5%)

Five

2 (3.3%)

3 (7.5%)

Eight

0 (0%)

1 (2.5%)

Lower UT symptoms during pre-donation pregnancies

0.73

No

56 (93.3%)

38 (95%)

Yes

4 (6.7%)

2 (5%)

Relevant medical history before donation

None

59 (98.4%)

39 (97.5%)

Bronchial asthma

1 (1.6%)

0 (0%)

0.338

Mild hypertension

0 (0%)

1 (2.5%)

Pre-donation surgical history

Tonsillectomy

1 (1.6%)

1 (2.5%)

0.771

Caesarean section

10 (16.6%)

3 (7.5%)

0.182

Cholecystectomy

1 (1.6%)

0 (0%)

0.412

Appendectomy

1 (1.6%)

0 (0%)

0.412

Disc prolapse

0 (0%)

1 (2.5%)

0.412

Systolic blood pressure before donation (mm Hg)

117.50 ± 8.36

118.75 ± 8.53

0.469

Diastolic blood pressure before donation (mm Hg)

77.50 ± 10.02

79.25 ± 8.59

0.366

Body mass index before donation (kg/m²)

18.5–24.9

15 (25%)

11 (27.5%)

25-29.9

29 (48.3%)

25 (62.5%)

0.117

≥ 30

16 (26.7%)

4 (10%)

Fasting blood sugar before donation (mg/dl)

88.97 ± 9.36

87.36 ± 8.01

0.380

Hemoglobin before donation (g%)

12.06 ± 0.96

12.26 ± 0.86

0.589

Serum creatinine (mg/dl) before donation (M ± SD)

0.73 ± 0.14

0.68 ± 0.16

0.08