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Table 5 Samples of items added to the SCPD-S v.01

From: Content validation of a self-report daily diary in patients with sickle cell disease

Item added to SCPD-S v.01

Rationale for Addition

Patient Quotes (on tested item)

How much emotional difficulty did you experience due to your sickle cell pain crisis during the past 24 hours (for example, stress, anxiety, sadness, and depression)?

Five out of 12 patients reported that mental and emotional health were important concepts to ask about in a daily diary on sickle cell pain and crises.

You could go with the emotional aspect as well, were you able to—I don’t, I guess I don’t know, maybe if I thought about my emotions at that time but I probably don’t…but I think maybe just even seeing where a person’s state of mind is? Either in or outside of the crisis, might help reveal… some information, I guess, if you were to pose questions towards your overall state of mind. (007)

Did the pain crisis last all of the past 24 hours or less than the past 24 hours?

Seven out of 12 patients expressed a preference for a question that would capture whether the sickle cell pain crisis had lasted more than 24 h so that they could skip filling out the number of hours under those circumstances.

We’re in pain so much we just don’t keep track of the time. (001)