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Table 1 Demographics, diagnoses, and condition on entry to study (N = 1442)

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

  Pre-intervention N = 607 NASG N = 835 pvalue
Study sites    
Egypt (2 referral hospitals) 432 558 --
Nigeria (4 referral hospitals) 175 277 --
Demographic characteristics    
Age: Mean years of age (SD) 29.0 (6.4) 29.3 (6.2) 0.27
   Median age (IQR) 28 (25-33) 29 (25-35) --
Parity: Mean live births (SD) 3.2 (2.8) 3.3 (2.8) --
   Median parity (IQR) 2 (1-5) 3 (1-5) 0.18
Pregnancy duration: Mean weeks (SD)* 37.0 (4.1) 37.4 (3.6) --
   Median weeks (IQR) 38 (36-40) 38 (36-40) 0.18
Primary definitive diagnosis    
Uterine atony 190 (33.0) 319 (38.2) 0.007
Ectopic pregnancy 95 (15.7) 85 (10.2) 0.002
Complications of abortion 45 (7.4) 93 (11.1) 0.02
Abruption of placenta 79 (13.0) 98 (11.7) 0.47
Vaginal, cervical or genital lacerations 25 (4.1) 65 (7.8) 0.004
Retained placenta or tissue 71 (11.7) 83 (9.9) 0.29
Ruptured uterus 46 (7.6) 32 (3.8) 0.002
Placenta previa 40 (6.6) 31 (3.7) 0.01
Placenta accrete 6 (1.0) 9 (1.1) 1.000√
Molar pregnancy 7 (1.2) 11 (1.3) 1.000√
Condition on study entry    
Where hemorrhage began    <0.001
   Transferred in bleeding 382 (72.9) 333 (56.4)  
   Began bleeding in hospital 142 (27.1) 258 (43.6)  
Estimated revealed blood loss at study entry+    
   Mean mL (SD) 1210.0 (507.7) 1327.5 (480.7) --
   Median mL (IQR) 1000 (1000-1500) 1200 (1000-1500) <.0001
Women with MAP < 60 or non-palpable BP 181 (29.9) 321 (38.5) 0.001
  1. NASG = Non-pneumatic Anti-Shock Garment. Data are n (column %), mean (SD) or median (IQR). The denominator is the entire population, unless otherwise noted. Tests of significance of differences by study phase were chi-square for categorical variables, t-tests (assuming unequal variances) for normally-distributed continuous variables and Wilcoxon rank-sum tests for non-normal distributions.
  2. * Excludes abortion, ectopic and molar pregnancies.
  3. √ Fisher's Exact test used.
  4. + Data missing for 250 patients.
  5. MAP < 60 category includes those with non-palpable blood pressure (BP). Data missing for 2 patients.