Table 2.

Coding themes.

Overarching themes	Subthemes	Description
A. Perceptions and impacts of risk of COVID-19 for employees (both organizational leaders and workers)	i. Acceptability of risk for workers	Perceptions of level of risk at work, and how comfortable respondents felt with this level of risk, including variability/differences across occupational groups
	ii. Perceptions of risk mitigation effectiveness	Perceptions of how effective implemented mitigation measures were at reducing risk, and what information informed these perceptions
	iii. Changes to working practices and impact on morale and wellbeing	Reports of any positive or negative impacts of changes to working practices made as a result of the pandemic
	iv. Issues with compliance to mitigations	Examples of non-compliance with mitigations by both colleagues and passengers; including both wilful non-compliance and forgetting mitigations when with familiar people
	v. Role of leadership and messaging	Perceptions of communication and messaging within companies, as well as from Government
B. Long-term impacts of COVID-19 on working practices and effects on health and wellbeing	i. Continuing COVID-19 mitigations	Perceptions and expectations of mitigations in the future, and how this relates to perceptions of future risk
	ii. Impact of increasing passenger numbers	Consideration of what would happen to transmission risks with increasing numbers of passengers, and implications for mitigations
	iii. Impact of vaccination programme	Perceptions of changes to transmission risk with roll out of COVID-19 vaccines and consequent actions
	iv. Impact of changes to business structure	Implications of business uncertainty for workers, as well as changes to staff management as a result of the pandemic