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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.