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Table 1 Characteristics of obstetric patients with a PcnA label versus no PcnA label

From: Outcomes in reported penicillin allergic mothers and neonates requiring Group B streptococcal prophylaxis: a retrospective observational cohort study

  PcnA label No PcnA label p-value
Number of patients, n (%) 506 (11.5%) 3881 (88.5%)  
Height (cm), median (IQR) 166.4 (162.6—170.2) 165.1 (160.0—168.9)  < 0.001*
Weight (kg), median (IQR) 84.4 (76.2—97.4) 82.1 (72.6—93.6)  < 0.001*
BMI, median (IQR) 30.7 (27.6—35.5) 30.4 (27.1—34.4) 0.03*
BMI > 35, n (%) 122 (24.1) 729 (18.8) 0.01*
Heart rate, mean (SD) 84.6 (10.8) 83.2 (10.9) 0.007*
Age in years, mean (SD) 30.1 (5.3) 29.6 (5.4) 0.03*
Age > 35 years, n (%) 83 (16.4) 544 (14.0) 0.15
Race, n (%)     < 0.001*
 White 429 (86.0%) 2571 (68.3%)  
 Non-White 70 (14.0% 1191 (31.7%)  
Latino/Hispanic, n (%) 25 (5.0%) 228 (6.0%) 0.39
Insurance, public, n (%) 159 (31.4%) 1540 (39.7%)  < 0.001*
Tobacco use, n (%)     < 0.001*
 Yes 178 (35.6%) 981 (25.6%)  
Admission type, n (%)    0.70
 Elective 110 (21.7%) 799 (20.6%)  
 Emergency 0 (0.0%) 3 (0.1%)  
 Urgent 396 (78.3%) 3079 (79.3%)  
Antibiotic type, n (%) n = 370 n = 155 * < 0.001
 Penicillins 0 (0.0%) 34 (21.9%)  
 Cephalosporins 205 (55.4%) 83 (53.5%)  
aOther 165 (44.5%) 38 (24.5%)  
Pregnancy type, n (%)    0.40
 Singleton 500 (97.8%) 3845 (98.2%)  
 Twin 12 (2.3%) 69 (1.8%)  
  1. *Statistical significance was set at p < 0.05. BMI body mass index, IQR interquartile range, PcnA penicillin allergy, SD standard deviation. aOther: non-penicillin and non-cephalosporin antibiotics