Table 2 Degree of accuracy of blood loss estimation for the 3 phases, with p-values for the association between phase 1 and phase 2, and phase 2 and phase
From: Effect of education and clinical assessment on the accuracy of post partum blood loss estimation
Phase | P value | ||||
|---|---|---|---|---|---|
P1 MD (sd) | P2 MD (sd) | P3 MD (sd) | P1 vs P2 | P2 vs P3 | |
Station 1 (200 ml) | -45.2 (93.0) | 21.7 (89.5) | 37.7 (119.2) | <0.0001 | 0.16 |
Station 2 (225 ml) | -5.2 (135.1) | 59.6 (115.9) | 49.2 (102.3) | <0.0001 | 0.18 |
Station 3 (250 ml) | -80.0 (112.0) | 19.9 (97.5) | 27.6 (122.0) | <0.0001 | 0.40 |
Station 4 (500 ml) | -115.0 (291.0) | -42.1 (309.4) | -52.4 (202.1) | 0.05 | 0.70 |
Station 5 (550 ml) | -196.6 (241.7) | -44.1 (182.2) | -18.0 (185.1) | <0.0001 | 0.11 |
Station 6 (550 ml) | -183.7 (254.4) | -65.7 (237.3) | -38.6 (205.5) | <0.0001 | 0.13 |
Station 7 (700 ml) | -227.4 (259.3) | -57.9 (235.1) | -14.2 (205.9) | <0.0001 | 0.02 |
Station 8 (900 ml) | -313.3 (317.5) | -42.9 (398.0) | -29.9 (360.3) | <0.0001 | 0.66 |
Station 9 (1050 ml) | -436.5 (505.4) | -135.8 (352.3) | -100.1 (342.6) | <0.0001 | 0.18 |
Station 10 (2000 ml) | -795.7 (729.6) | -227.1 (823.4) | -178.3 (634.2) | <0.0001 | 0.36 |