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Table 3 Effect of time on erythrocyte sedimentation rate at 23 ± 2 °C (room temperature) storage of blood samples

From: Effect of storage temperature and time on erythrocyte sedimentation rate

 

Baseline mean (SD) median (range)

Follow-up mean (SD) median (range)

Change in mean (%)

Pa

ESR (2 h), mm/h

61.53 (17.70)

60.32 (16.50)

− 1.97

NS

61 (29–105)

60 (29–102)

ESR (4 h), mm/h

61.53 (17.70)

59.55 (16.67)

− 3.21

NS

61 (29–105)

59 (28–101)

ESR (6 h), mm/h

61.53 (17.70)

57.64 (15.86)

− 6.32

NS

61 (29–105)

57 (27–99)

ESR (8 h), mm/h

61.53 (17.70)

54.95 (17.38)

− 10.69

0.031

61 (29–105)

54 (25–92)

ESR (12 h), mm/h

61.53 (17.70)

51.63 (17.01)

− 16.09

0.008

61 (29–105)

51 (23–86)

ESR (24 h), mm/h

61.53 (17.70)

47.12 (14.72)

− 23.42

0.012

61 (29–105)

46 (21–79)

  1. aWilcoxon signed-rank test