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Table 4 Association between reasons for first P/Cr test and P/Cr test results

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

 

P/Cr test result

Reason for the first time P/Cr test

[P]

[Cr]

SPIP (P/Cr > 0.27)

After confirmation of hypertension onset (n = 222) with following dipstick test results:

   

 Negative/equivocal (n = 77)

9 (1–323)a

66 (11–194)

14 (18 %)a

 Positive with 1+ (n = 55)

25 (5–314)a

117(20–402)a

26 (47 %)a

 Positive with ≥ 2+ (n = 90)

185 (6–3890)a

133 (18–533)a

82 (91 %)a

No hypertension onset (n = 806) with following dipstick test results:

   

 Negative/equivocal (n = 251)

4 (0–60)

63 (11–446)

8 (3.2 %)

 Positive with 1+ (n = 425)

19 (1–196)

162 (10–708)

37 (8.7 %)

 Positive with ≥  2+ (n = 75)

71 (1–866)

191 (27–598)

44 (59 %)

 Positive with 1+ at two successive visits (n = 55)

21 (1–192)

146 (26–364)

9 (16 %)

  1. The reason for the first P/Cr test was specified in 1028 of the 1033 women
  2. [P], protein concentration; [Cr], creatinine concentration; and SPIP, significant proteinuria in pregnancy
  3. a, P < 0.05 vs. corresponding value for the group without hypertension