Table 1.

Volume of tweets over time by thematic category.

Main category	Overall (n=5314), n (%)	2017 (n=277), n (%)	2018 (n=1227), n (%)	2019 (n=1341), n (%)	2020 (n=1090), n (%)	2021 (n=1379), n (%)
General sentiments	1614 (30.4)	110 (39.2)	399 (32.5)	405 (30.2)	320 (29.4)	380 (27.6)
Delaying or forgoing care	1190 (22.4)	64 (23.1)	304 (24.8	286 (21.3)	266 (24.4)	270 (19.6)
Payment strategies	1019 (19.2)	34 (12.3)	206 (16.8)	298 (22.2)	249 (22.8)	232 (16.8)
Insurance	767 (14.4)	44 (15.9)	173 (14.1)	187 (13.9)	155 (14.2)	208 (15.1)
Policy statements	724 (13.6)	25 (9.0)	145 (11.8)	165 (12.3)	100 (9.2)	289 (21.0)