Table 2.

Temporal analysis—theme monthly incidence rate.^a

	Year 2020											Year 2021
	March	April	May	June	July	August	September	October	November	December	January		February	March	April
Infection and fatality risk, %	17	8	0	0	0	4	10	8	4	11	4		4	7	3
Virus information, %	6	0	0	0	0	0	0	0	4	0	0		0	7	3
Testing as risk identification, %	6	0	0	0	0	0	0	4	0	0	0		0	4	3
Nursing risk identification, %	0	25	0	0	0	4	3	4	0	11	0		0	0	0
PPEb as risk mitigation, %	6	8	24	0	8	0	3	0	0	0	0		0	0	3
Mitigation strategies for public health, %	0	0	0	22	8	8	3	4	4	11	0		4	11	3
COVID-19 vaccine as risk mitigation, %	0	0	0	0	8	0	0	0	4	33	30		46	18	33
Work overload, %	11	8	6	9	8	0	0	4	13	0	0		0	0	0
Working conditions, %	6	8	6	4	8	16	3	15	8	11	11		0	0	3
Patient care (task completion), %	0	0	6	0	0	4	0	0	0	0	0		4	4
Task completion and learning skills, %	6	0	6	9	0	8	3	12	8	0	26		4	7	7
Responsibilities, %	0	0	0	0	8	0	13	0	4	0	0		0	0	0
Pay and benefits, %	0	0	6	0	15	12	3	0	0	0	4		7	0	0
Future job situation, %	6	0	0	0	0	0	0	0	0	0	0		4	0	0
Family and home impact, %	22	17	6	4	15	0	0	4	4	11	11		0	0	0
Nurse burnout, %	0	0	0	0	0	4	0	0	8	0	4		0	0	0
PESc concerns, %	0	0	18	13	0	4	3	4	8	11	0		4	0	0
Mandates and restrictions, %	0	0	6	9	15	0	0	4	4	0	0		0	0	10
Government response, %	6	8	0	0	0	0	0	0	4	0	0		4	0	3
Denial and misinformation, %	0	8	6	0	0	0	3	0	0	0	4		7	29	10
Total number of themes per month, N	18	12	17	23	13	25	30	26	24	9	27		28	28	30

^aItalics represent an incidence rate of >10%.

^bPPE: personal protective equipment.

^cPES: political, economic, and social.