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Table 4 Effect of position (physician vs. nurse) 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
  Physician MD (sd) Nurse MD (sd) P-value Physician MD (sd) Nurse MD (sd) P-value Physician MD (sd) Nurse MD (sd) P-value
Station 1 (200 ml) -35.2 (96.1) -49.8 (91.5) 0.46 40.0 (119.4) 16.5 (78.3) 0.22 28.3 (84.0) 40.5 (129.1) 0.63
Station 2 (225 ml) -4.7 (141.8) -8.4 (131.3) 0.89 94.3 (143.8) 48.9 (105.0) 0.07 103.4 (149.2) 33.1 (76.5) 0.001
Station 3 (250 ml) -64.8 (141.6) -85.0 (102.2) 0.40 48.4 (117.6) 11.7 (89.6) 0.08 84.5 (158.3) 10.4 (103.8) 0.004
Station 4 (500 ml) 75.2 (447.7) -172.4 (190.2) <0.0001 20.9 (194.6) -61.1 (337.3) 0.22 39.1 (195.1) -80.5 (197.8) 0.005
Station 5 (550 ml) -215.3 (175.7) -197.7 (251.8) 0.73 7.8 (198.1) -59.4 (175.8 ) 0.08 61.4 (229.9) -42.1 (163.5) 0.008
Station 6 (550 ml) -157.6 (247.2) -192.3 (258.7) 0.53 -44.0 (261.3) -70.7 (231.1) 0.60 -5.2 (193.1) -48.1 (210.1) 0.33
Station7 (700 ml) -238.6 (240.1) -234.9 (245.0) 0.94 -56.2 (215.9) -57.9 (243.0) 0.97 -57.4 (211.8) -1.9 (204.2) 0.21
Station 8 (900 ml) -243.9 (366.4) -337.3 (300.4) 0.17 119.0 (445.1) -89.8 (371.6) 0.01 96.7 (440.9) -67.6 (325.9) 0.03
Station 9 (1050 ml) -444.1 (340.2) -434.0 (550.9) 0.93 -15.7 (350.5) -169.8 (347.0) 0.04 -65.5 (265.2) -112.5 (365.3) 0.52
Station 10 (2000 ml) -648.3 (785.0) -871.7 (648.6) 0.13 -8.6 (649.7) -290.1 (865.5) 0.11 45.8 (616.1) -246.9 (630.2) 0.03
  1. MD = Mean Difference.
  2. sd = Standard deviation.
  3. Stations were ordered in an ascending order of simulated blood loss volumes, although the sequence was random for the different phases conduction.