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Table 2 Comparison of characteristics of survey respondents and non-respondents

From: Biomedical journal speed and efficiency: a cross-sectional pilot survey of author experiences

  Respondents (n = 337) No. (%) Non-respondents (n = 1443) No. (%) P value
Country of publication
 USA 150 (44.5) 561 (38.9) 0.06
Email
 Institutional 232 (68.8) 1020 (70.7) 0.003
 Gmail/Yahoo/Hotmail/Aol 80 (23.7) 248 (17.2)
 Other 25 (7.4) 175 (12.1)
Study design
 Clinical trial 60 (17.8) 248 (17.2) 0.88
 Observational or other study 247 (73.3) 1076 (74.6)
 Systematic review and/or meta-analysis 30 (8.9) 119 (8.3)
Corresponding author characteristics
 Median number of publications (interquartile range) 27 (10.0 to 77.0) 38.0 (11.0 to 100.0) 0.03a
 Median h-index (interquartile range) 9.0 (3.0 to 20.0) 11.0 (4.0 to 22.0) 0.07a
Journal characteristics
 Median journal impact factor (interquartile range) 2.7 (2.0 to 3.6) 2.6 (1.8 to 3.6) 0.31a
  1. aWilcoxon-Mann-Whitney test