All women were followed for three years, concluding with an exit appointment at which colposcopic examination was undertaken.
To accommodate variability between participants in length of follow-up, each woman accrued person years from the randomisation date until the date of the exit appointment for those who attended and, for others, the date the exit appointment was scheduled or the date they requested to leave the trial, had a hysterectomy, died, or moved from the area.
41 To take account of variation between women in length of follow-up, each woman accrued person years from the randomisation date until the date of their exit examination for those who attended or, for others, the date the exit appointment was scheduled, they requested to leave the trial, had a hysterectomy, died, or moved out of the area.
In addition, around the scheduled time of the exit appointment and irrespective of attendance at this appointment, the woman's medical records, together with hospital and pathology databases, were reviewed to ascertain details of any additional relevant events and procedures, such as referral with cervical intraepithelial neoplasia.
Missing data were due to respondents exiting the survey to attend their GP appointment.
Bill dutifully kept his dialysis appointments until he exited life a few months later, his heart and body having failed.
Patients called into their appointment were able to exit the survey.
Patients were able to exit the survey if called into their appointment.
If participants were called into their appointment before completing, they could exit the survey and the completed data were retained.
Participants were able to exit the questionnaire if called in for their appointment prior to completion.
