Table 2.

Proportions of female authors separated by impact range and year

	High IF			Medium IF			Low IF			Adjusted odds ratio (AOR [95% CI])
	Total observ.	Fem. observ.	AER [95% CI]	Total observ.	Fem. observ.	AER [95% CI]	Total observ.	Fem. observ.	AER [95% CI]	Medium–high AOR [95% CI]	Des. p-value	Low–high AOR [95% CI]	p-value	Low–medium AOR [95% CI]	Des. p-value
Overall	10988	2290	18.0 [17.1–19.0]	5941	1545	23.2 [21.9–24.5]	2821	678	21.2 [19.4–23.0]	1.4 [1.2–1.5]	< .0001	1.2 [1.1–1.4]	.0013	0.9 [0.8–1.0]	.142
2007/2008	4608	791	14.6 [13.4–15.8]	2796	622	19.5 [17.9–21.3]	940	162	14.6 [12.4–17.2]	1.4 [1.2–1.7]	< .0001	1.0 [0.7–1.4]	1.00	0.7 [0.5–1.0]	.0199
2017/2018	6380	1499	20.8 [19.5–22.0]	3145	923	26.8 [25.0–28.7]	1881	516	24.8 [22.6–27.2]	2.1 [1.6–2.9]	< .0001	1.3 [1.0–1.5]	.0106	0.9 [0.7–1.1]	.7453
2007–2018
Female FA	5462	1510	24.2 [22.8–25.6]	2957	902	27.3 [25.4–29.2]	1394	407	25.8 [23.3–28.5]	1.2 [1.0–1.4]	.0603	1.1 [0.9–1.4]	.8655	0.9 [0.7–1.2]	.9460
Female SA	5526	780	11.0 [10.1–12.0]	2984	643	18.0 [16.4–19.6]	1427	271	15.5 [13.6–17.7]	1.8 [1.5–2.1]	< .0001	1.5 [1.2–1.9]	< .0001	0.8 [0.7–1.1]	.3865

Logistic mixed model including adjusted odds ratio (AOR) and adjusted event rate (AER) with 95% confidence interval (CI). Abbreviations: IF impact factor, Total observ. total observations, Fem. observ. female observations, Des. p-value descriptive p-value, FA first author, SA senior author