Table 1.

Summary statistics of the mental health n-gram data set compared with the general Twitter n-gram data set on 3 individual days. The dates shown correspond to several Bell Let’s Talk Day events occurring between 2010 and 2021. Bell Let’s Talk Day is an annual fundraising and awareness campaign in Canada that coincides with the annual peak in conversation regarding mental health. Unique 1-grams enumerate the set of distinct words found in tweets on these dates, reflecting roughly 10% of all tweets. The Total 1-grams column shows the sum of the counts of each unique 1-gram, and the Total 1-grams (no retweets) column shows the sum of the counts of 1-grams in tweets, not including any messages that were retweeted.

			Unique 1-grams		Total 1-grams		Total 1-grams (no retweets)
February 8, 2012
	Mental health	3.0×103		3.0×104		9.3×103
	General	1.7×107		3.1×108		2.2×108
January 21, 2014
	Mental health	1.6×103		2.3×104		1.5×105
	General	2.4×107		4.9×108		2.9×108
January 31, 2018
	Mental health	4.9×104		4.4×106		2.6×105
	General	2.1×107		5.4×108		1.6×108