A two-year follow-up: Twitter activity regarding misinformation about spinal manipulation, chiropractic care and boosting immunity during the COVID-19 pandemic

Table 3 Overall tweet rates with the expected and actual tweet rates between time periods

										Period A–B			Period B–C
Content	Number of promoting Tweets			Tweets/m			Proportion of tweets/m (%)			Expected rate of to preserve proportion (%)	Actual rate of change (%)	Difference (%)	Expected rate of to preserve proportion (%)	Actual rate of change (%)	Difference (%)
Content	Period A	Period B	Period C	Period A	Period B	Period C	Period A	Period B	Period C	Expected rate of to preserve proportion (%)	Actual rate of change (%)	Difference (%)	Expected rate of to preserve proportion (%)	Actual rate of change (%)	Difference (%)
CC	42	92	44	14.00	7.67	3.67	39	54	56	39	55	15	46	48	1
noSMT	15	33	17	5.00	2.75	1.42	14	19	22	39	55	16	46	52	5
SMT	51	45	18	17.00	3.75	1.50	47	26	23	39	22	− 17	46	40	− 6
Total	108	170	79	36.00	14.17	6.58	100	100	100

ISSN: 2045-709X