Table 2.

Example of the analysis process

Meaning units	Codes	Category	Theme
When they cannot express if they are in pain nor grade their pain, then it is about me and my ability to assess their expressions, to look at face expressions and body language, movements, pallor or cold sweat and physical signs...you need to understand if it is about pain or if it is about anxiety or if it is a combination.	Interpretation of pain	Uncertainties when assessing pain	Communication challenges: assessing and relieving pain
	Signs of pain
	Lack of verbal communication
	To distinguish pain from anxiety