Table 2 Cumulative incidence of PPH outcome measures and their diagnostic accuracy for early shock defined as shock index ≥1
From: Postpartum haemorrhage in anaemic women: assessing outcome measures for clinical trials
PPH definition | SI ≥ 1 | SI < 1 | Total | Sensitivity | Specificity | |||
|---|---|---|---|---|---|---|---|---|
n | (%) | n | (%) | N | (%) | |||
Clinical diagnosis of PPH | ||||||||
 Yes | 109 | (31) | 208 | (5) | 317 | (7) | 31% | 95% |
 No | 240 | (69) | 3956 | (95) | 4196 | (93) |  |  |
 Total | 349 | (100) | 4164 | (100) | 4513 | (100) |  |  |
Estimated blood loss ≥ 500 ml | ||||||||
 Yes | 95 | (27) | 274 | (7) | 369 | (8) | 27% | 93% |
 No | 254 | (73) | 3890 | (93) | 4144 | (92) |  |  |
 Total | 349 | (100) | 4164 | (100) | 4513 | (100) |  |  |
Total blood volume lost ≥ 15% | ||||||||
 Yes | 48 | (14) | 69 | (2) | 117 | (3) | 14% | 98% |
 No | 301 | (86) | 4095 | (98) | 4396 | (97) |  |  |
 Total | 349 | (100) | 4164 | (100) | 4513 | (100) |  |  |
Peripartum Hb drop ≥ 20 g/La | ||||||||
 Yes | 47 | (14) | 111 | (3) | 158 | (4) | 14% | 97% |
 No | 297 | (86) | 3990 | (97) | 4287 | (96) |  |  |
 Total | 344 | (100) | 4101 | (100) | 4445 | (100) |  |  |
Peripartum Hb drop ≥ 10%a | ||||||||
 Yes | 105 | (31) | 604 | (15) | 709 | (16) | 31% | 85% |
 No | 239 | (69) | 3497 | (85) | 3736 | (84) |  |  |
 Total | 344 | (100) | 4101 | (100) | 4445 | (100) |  |  |
Calculated blood loss ≥ 1000 mla | ||||||||
 Yes | 70 | (20) | 298 | (7) | 368 | (8) | 20% | 93% |
 No | 274 | (80) | 3799 | (93) | 4073 | (92) |  |  |
 Total | 344 | (100) | 4097 | (100) | 4441 | (100) |  |  |
RBC transfusion within 24 h after delivery | ||||||||
 Yes | 119 | (34) | 1010 | (24) | 1129 | (25) | 34% | 76% |
 No | 226 | (66) | 3121 | (76) | 3347 | (75) |  |  |
 Total | 345 | (100) | 4131 | (100) | 4476 | (100) |  |  |
IV fluid within 24 h after delivery | ||||||||
 Yes | 200 | (58) | 1716 | (42) | 1916 | (43) | 59% | 58% |
 No | 139 | (40) | 2331 | (56) | 2470 | (55) |  |  |
 Total | 339 | (98) | 4047 | (98) | 4386 | (98) |  |  |
TXA within 24 h after delivery | ||||||||
 Yes | 87 | (25) | 169 | (4) | 256 | (6) | 25% | 96% |
 No | 262 | (76) | 3994 | (97) | 4256 | (95) |  |  |
 Total | 349 | (101) | 4163 | (101) | 4512 | (101) |  |  |
Postpartum uterotonics | ||||||||
 Yes | 133 | (39) | 1174 | (28) | 1307 | (29) | 38% | 72% |
 No | 216 | (63) | 2990 | (72) | 3206 | (72) |  |  |
 Total | 349 | (101) | 4164 | (101) | 4513 | (101) |  |  |