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Table 3 Outcomes between standard hemorrhage and shock management (pre-intervention) and standard management plus NASG (intervention) (N = 1442)

From: Obstetric hemorrhage and shock management: using the low technology Non-pneumatic Anti-Shock Garment in Nigerian and Egyptian tertiary care facilities

Outcome Pre-intervention (N = 607) NASG (N = 835) Relative Risk (95%CI) Pvalue NNTb
Measured vaginal blood loss in drape:      
   Mean mL (SD)* 443.5 (346.1) 240.0 (199.4)   --  
   Median mL (IQR) 400 (250-500) 200 (150-250)   <0.0001  
Emergency hysterectomy+ 20 (8.9) 14 (4.0) 0.44(0.23-0.86) -- 20 (11-138)
Morbidity 21 (3.7) 6 (0.7) 0.20 (0.08-0.50) -- 34 (22-78)
Mortality 38 (6.3) 29 (3.5) 0.56 (0.35-0.89) -- 36 (20-202)
  1. NASG = Non-pneumatic Anti-Shock Garment. Data are n (%) or mean (SD). The denominator is the entire population, unless otherwise noted.
  2. * For cases in which the calibrated blood collection drape was used and there were data for blood loss. Wilcoxon rank-sum test used to compare distributions by study phase. Data are for 1005 cases.
  3. +Data on emergency hysterectomy are only for women with primary or secondary diagnosis of uterine atony (n = 578).
  4. Includes renal failure, acute respiratory distress syndrome, heart failure, cerebral impairment (seizures, un-consciousness, motor/cognitive loss) lasting more than 24 hours after resuscitation from shock. Denominator is the number of women who survived (n = 1375).