Table 2. Univariate predictors of CI-AKI derived by logistic regression analysis.

Variable	Patients without CIN (n = 559)Mean/median (±SD/Q1–Q3)	Patients with CIN (n = 58)Mean/median (±SD/Q1–Q3)	OR (95%-CI)	p-value
Age, y	74 (68–80)	76 (71–80)	1.03 (0.99–1.06)	0.13
BMI, kg/m2	27.25 ± 4.25	26.71 ± 3.44	0.97 (0.90–1.03)	0.31
MAPday-1, mmHg	97.48 ± 13.22	96.26 ± 13.75	0.99 (0.97–1.01)	0.46
Contrast volume, ml	110.12 ± 51.74	118.90 ± 54.83	1.00 (0.99–1.01)	0.18
eGFRday-1, ml·min−1·1.73m−2	48.68 ± 12.66	53.12 ±10.05	1.03 (1.01–1.06)	0.006
Se-Creatinineday-1, mg/dl	1.36 ± 0.41	1.19 ± 0.27	0.2 (0.07–0.50)	0.001
Cystatin Cday-1, mg/L,	1.28 ± 0.45	1.21 ± 0.38	0.67 (0.32–1.28)	0.26
Urine osmolalityday-1, mOsm/kgH2O	470 (370–610)	460 (370–580)	0.99 (0.99–1.00)	0.46
Urinary proteinday-1, mg/gCreatinine	100 (69–190)	110 (77–170)	1.00 (0.99–1.00)	0.89
uNGAL (ng/ml)day-1	19 (9–49)	18 (9.2–48)	0.96 (0.58–1.58)	0.89
uNGAL (μg/gCrea)day-1	25 (12–57)	24 (13–76)	1.11 (0.67–1.83)	0.68
uNGAL (ng/ml)day0	11 (6–27)	13 (5–40)	1.04 (0.64–1.7)	0.76
uNGAL (μg/gCrea)day0	20 (10–44)	20 (11–57)	1.07 (0.65–1.8)	0.54
Sex (n, %)
Female	256 (45.8)	31 (53.4)
Male	303 (54.2)	27 (46.6)	0.74 (0.43–1.26)	0.27
Diabetes (n, %)
No	330 (59)	41 (70.7)
Yes	229 (41)	17 (29.3)	0.60 (0.32–1.06)	0.09
Heart disease (n, %)
No	108 (19.3)	8 (13.8)
Yes	451 (80.7)	50 (86.2)	1.5 (0.73–3.50)	0.31
Hypertension (n, %)
No	80 (14.3)	7 (12.1)
Yes	479 (85.7)	51 (87.9)	1.22 (0.57–3.00)	0.64
Diuretics (n, %)
No	207 (37)	20 (34.5)
Yes	352 (63)	38 (65.5)	1.12 (0.64–2.00)	0.7
RAAS-Blocker (n, %)
No	131 (23.4)	13 (22.4)
Yes	428 (76.6)	45 (77.6)	1.06 (0.57–2.10)	0.86
Statins (n, %)
No	99 (37.4)	7 (25.0)
Yes	166 (62.6)	21 (75.0)	1.79 (0.77–4.7)	0.2
Angiography (n, %)
Coronary	385 (62.4)	42 (72.4)
Peripheral arteries	213 (34.5	14 (24.1)	0.57 (0.3–1.1)	0.08
other	19 (3.08)	2 (3.45)	0.96 (0.15–3.50)	0.96

OR = odds ratio, CI = confidence interval.