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Table 1 Demographics of individual responding anesthesiologists and demographics of the participating hospitals

From: Performance of aseptic technique during neuraxial analgesia for labor before and after the publication of international guidelines on aseptic technique

  2006 2009
Demographics of participating anesthesiologists   
Respondents/Frame (% response rate) 135/160 (84.4%) 127/164 (77%)
Age (years): Median (IQR) 46 (37-54) 42.5 (37-50)
Experience (years): Median (IQR) 14 (5-25) 10 (5-18)
Males 96/131 89/124
Females 35/131 35/124
Attendings 67/135 62/127
Residents 56/135 58/127
NRNA (non-resident, non-attending) 12/135 7/127
Demographics of participating hospitals   
Deliveries/year: Mean ± SD 8350 ± 2738 9222 ± 3253
% Epidural rate: Mean ± SD 45 ± 16 50 ± 18
% Cesarean rate: Mean ± SD 18 ± 5 18 ± 4
  1. Continuous demographic variables were compared using one way ANOVA.
  2. There were no significant differences between groups.
  3. Note: Not all questions were answered by all respondents (95.5% of primary endpoint data in 2006, 99.5% in 2009), so the denominator is not constant throughout.