Table 4.
Effect of position (physician vs. nurse) on the degree of accuracy of blood loss estimation for the research three phases
| |
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 |
MD = Mean Difference.
sd = Standard deviation.
Stations were ordered in an ascending order of simulated blood loss volumes, although the sequence was random for the different phases conduction.