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Table 3 Comparison between antenatal and postnatal urine samples

From: Urinary protein-to-creatinine ratio in pregnant women after dipstick testing: prospective observational study

 

Antenatal urine

Postnatal urine

No. of specimens

178

178

GW at sampling

36.1 (10–41)

NA

Days before delivery

2.5 (0–195)

NA

Postpartum days at sampling

NA

5.0 (0–63)

[P] (mg/dL)

86 (0.0–6170)

25.5 (1.0–648)a

[Cr] (mg/dL)

100 (10–401)

60 (8.7–297)a

Negative/equivocal dipstick test result

  

 No. of specimens

43

89

 [P] (mg/dL)

8.0 (0.0–56)

10.0 (1.0–193)

 [Cr] (mg/dL)

68.0 (10.0–310)

55.0 (14.0–297)

 P/Cr

0.09 (0.0–0.71)

0.17 (0.01–3.51)

 SPIP (P/Cr > 0.27)

7 (16.3 %)

25 (28.1 %)

  1. 178 paired urine sample from 178 women were analyzed. GW, gestational week; NA, not applicable; [P], protein concentration; [Cr], creatinine concentration; and SPIP, significant proteinuria in pregnancy
  2. a, P  <  0.05 vs. antenatal samples