Table 1.

Comparison of volume and variance of #BreastCancer and #HeartDisease corpora.

	#BreastCancer corpus (n)	#HeartDisease corpus (n)
Posts (tweets)	592,046	269,769
Total words	7,750,129	2,789,827
Individual, non-repeated words	95,311	22,402
Instances of ‘RT’	338,940	34,519

RT: Indicates a ‘retweet’. This implies that the text was originally composed by someone else, and was copied and shared by another user.