All data was collected manually after all acceptance decisions were finalized. Information regarding authors’ gender was not requested at the time of submission. Reviewers were not informed of the gender nor the affiliation of authors. Gender is represented using “male/female” binary. We know this is imperfect but believe that this information is still valuable.

52nd (Rutgers, 2021)

	Number of abstracts	Number of female authors	Number of male authors
Abstracts submitted for review	310	202 (43%)	258 (55%)
Abstracts accepted as a paper	59	40 (43%)	52 (56%)
Abstracts accepted as a poster	44	21 (32%)	42 (65%)
Abstracts accepted	103	61 (39%)	94 (59%)

47th (UMass, 2016)

	Number of abstracts	Number of female authors	Number of male authors
Abstracts submitted for review	417	270 (44%)	338 (55%)
Abstracts accepted as a paper	50	31 (38%)	49 (61%)
Abstracts accepted as a poster	50	35 (48%)	38 (52%)
Abstracts accepted	100	66 (43%)	87 (57%)

46th (Concordia, 2015)

		Single-authored		Joint-authored
	Total	Male	Female	All Male	All Female	Both
Abstract submitted for review	382	141 (37%)	118 (31%)	38 (10%)	20 (5%)	65 (17%)
Abstract accepted as a paper	50	23 (46%)	14 (28%)	6 (12%)	1 (2%)	6 (12%)
Abstract accepted as a poster	48	18 (37%)	10 (21%)	8 (17%)	3 (6%)	9 (19%)
Abstract accepted	98	41 (42%)	24 (24.5%)	14 (14.2%)	4 (4%)	15 (15.3%)

45th (MIT, 2014)

		Single-authored		Joint-authored
	Total	Male	Female	All Male	All Female	Both
Abstract submitted for review	428	169 (39.5%)	131 (31%)	43 (10%)	28 (6.5%)	57 (13%)
Abstract accepted as a paper	48	15 (31%)	15 (31%)	5 (10.5%)	5 (8.5%)	9 (19%)
Abstract accepted as a poster	48	24 (50%)	10 (29%)	6 (12.5%)	1 (2%)	7 (14.5%)
Abstract accepted	96	39 (41%)	25 (26%)	11 (11.5%)	5 (5%)	16 (16.5%)