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Table 3 Effect of years of experience on the degree of accuracy of blood loss estimation for the research three phases

From: Effect of education and clinical assessment on the accuracy of post partum blood loss estimation

 

Phase 1

Phase 2

Phase 3

 

<10 yrs MD (sd)

≥10 yrs MD (sd)

P-value

<10 yrs MD (sd)

≥10 yrs MD (sd)

P-value

<10 yrs MD (sd)

≥10 yrs MD (sd)

P-value

Station 1 (200 ml)

-55.1 (81.8)

-51.8 (96.8)

0.86

38.8 (102.2)

16.0 (95.9)

0.29

51.5 (92.0)

43.9 (168.1)

0.80

Station 2 (225 ml)

-32.0 (133.3)

18.6 (148.8)

0.10

68.2 (124.1)

62.7 (134.4)

0.85

59.0 (109.5)

42.8 (101.2)

0.48

Station 3 (250 ml)

-87.0 (85.3)

-70.6 (145.3)

0.53

15.7 (71.3)

24.0 (113.6)

0.69

28.7 (94.0)

22.7 (127.2)

0.81

Station 4 (500 ml)

-151.8 (255.0)

-78.6 (374.5)

0.30

-57.6 (215.2)

-39.7 (367.2)

0.79

-38.4 (216.9)

-74.6 (213.7)

0.44

Station 5 (550 ml)

-210.0 (169.7)

-209.2 (302.4)

0.99

-19.3 (147.0)

-69.8 (176.1)

0.16

-31.2 (131.8)

-46.0 (223.0)

0.71

Station 6 (550 ml)

-195.9 (194.4)

-151.2 (338.5)

0.46

-86.6 (253.4)

-73.9 (250.5)

0.82

-15.0 (234.6)

-89.1 (192.5)

0.11

Station7 (700 ml)

-267.8 (219.9)

-226.1 (265.7)

0.43

8.8 (267.9)

-105.8 (242.3)

0.04

25.0 (234.3)

-60.5 (209.1)

0.08

Station 8 (900 ml)

-351.8 (283.0)

-283.5 (352.4)

0.33

22.2 (373.2)

-85.7 (414.9)

0.21

6.8 (319.5)

-95.6 (354.9)

0.17

Station 9 (1050 ml)

-475.7 (318.3)

-347.3 (734.9)

0.30

-132.6 (304.6)

-236.1 (398.0)

0.18

-48.0 (343.1)

-184.4 (341.4)

0.07

Station 10 (2000 ml)

-1032.1 (527.2)

-652.2 (804.0)

0.01

-290.2 (708.3)

-271.5 (890.2)

0.92

-188.6 (682.8)

-230.9 (690.2)

0.78

  1. Yrs = Years.
  2. P-value significant ≤ 0.05.
  3. MD = Mean Difference.
  4. sd = Standard deviation.
  5. Stations were ordered in an ascending order of simulated blood loss volumes, although the sequence was random for the different phases conduction.