Albumin to creatinine ratio in a random urine sample: Correlation with severity of preeclampsia

Peer review under responsibility of Alexandria University Faculty of Medicine.

Available online 31 January 2014

Figures & data

Table 1 Albumin, creatinine, ACR and protein in urine.

	Group A (Mild) n = 50	Group B (Severe) n = 50	Z (p)
Albumin (mg/L)
Range	1.19–6500.00	34.40–29500.00	6.613^* (<0.001)
Mean ± SD	717.99 ± 1273.03	3976.97 ± 5580.22
Median	20.80	2650.00
Creatinine (mmol/L)
Range	0.32–18.64	0.60–39.91	1.896 (0.058)
Mean ± SD	5.53 ± 4.76	8.24 ± 7.86
Median	3.97	5.54
ACR (mg/mmol)
Range	0.31–980.39	14.85–2673.48	6.225^* (<0.001)
Mean ± SD	140.36 ± 232.59	631.62 ± 530.60
Median	4.59	533.67
Protein (mg/24-h)
Range	390.00–4410.00	14.85–11850.00	6.894^* (<0.001)
Mean ± SD	1285.60 ± 945.14	7066.08 ± 2795.22
Median	887.50	7565.00

Z: Z for Mann Whitney test.

* Statistically significant at p ⩽ 0.05.

Figure 1 The correlation between ACR and the 24-h protein in urine.

Figure 2 Receiver operating characteristic (ROC) curve comparing the diagnostic performance of ACR (dashed line) and protein in 24-h urine (continuous line) (AUC) for ACR was 0.93 (AUC) for protein in 24-h urine was 0.89.