Table 4

Association between female gender and position on the byline by year, in univariate analysis (left columns) and after adjustment for research contributions to the project (right columns)

Author position (vs middle)*Univariate analysisAdjusted for contributions
OR95% CIP valueOR95% CIP value
First
 20000.990.56 to 1.730.961.230.35 to 4.330.74
 20151.000.65 to 1.560.981.440.69 to 3.010.33
Second
 20001.550.89 to 2.720.121.941.05 to 3.590.03
 20151.120.68 to 1.840.671.280.75 to 2.210.37
Next-to-last
 20000.630.34 to 1.170.140.730.39 to 1.360.33
 20150.580.36 to 0.930.020.590.36 to 0.960.03
Last
 20000.550.30 to 1.010.050.800.32 to 1.980.62
 20150.460.28 to 0.750.0020.710.37 to 1.370.31
  • *36 articles with four or fewer authors were excluded from the analyses.