Home interviews are needed for a trial of this kind; interviewers need careful recruitment, training and supervision; and there should be careful separation from the clinical service of the control patients to prevent accidental contamination.
An assessment was made between and across participants to determine whether additional interviews were needed.
However, further cognitive interviews are needed for items related to sexuality and to anxiety severity, as well as response options for severity attribute items.
One-hundred interviews were needed to insure adequate statistical power.
However, since we achieved data saturation, no more in-depth interviews were needed.
Repeated interviews were needed for patients with cerebral confusion and relatives were sometimes asked to complete the interviews.
Twelve interviews were conducted representing all groups and two additional interviews were needed to reach data saturation.
Only five interviews were needed to achieve saturation as their experiences were similar to those of participants who completed forms.
As a result, follow-up interviews were needed to enhance understanding of some structural factors including HMIS.
