Table 1.

Publication and author characteristics.

	Combined Period, n (%)	Period 1 Dec 2018–Feb 2020	Period 2 Mar 2020–May 2021	p value
Publications	672	306	366
Authors, combined	1344	612	732	0.26
Female	710 [53]	313 [51]	397 [54]
Male	634 [47]	299 [49]	335 [46]
First Author				0.90
Female	419 [62]	190 [62]	229 [63]
Male	253 [38]	116 [38]	137 [37]
Last Author				0.13
Female	291 [43]	123 [40]	168 [46]
Male	381 [57]	183 [60]	198 [54]
First Author Country				0.06
United States (US)	529 [79]	251 [82]	278 [76]
Non-US	143 [21]	55 [18]	88 [24]
Publication Type
Original Investigations	568 [85]	269 [88]	299 [82]	0.03
Total Authors	1136	538	598
Female Authors	623 [55]	286 [53]	337 [56]
Invited Articles	104 [15]	37 [12]	67 [18]
Total Authors	208	74	134
Female Authors	87 [42]	27 [37]	60 [45]