The increased duration of excess mortality may be a result of the reduced 6-months and 1-year excess mortality observed in hip fracture patients ≥85 years, which may have left a higher number of frail and sick patients for the long term follow up, contributing to excess mortality for a longer time period.
However, this method is robust to incomplete follow-up if the number of events and the amount of time contributed by each participant are known or it can be assumed that individuals lost to follow-up contribute no events or follow-up time and loss to follow-up is not differential between the treatment groups.
Despite this, endoscopy remains the preferred method to diagnose mucosal recurrences with serial follow up and PET scans contributing to the detection of deep recurrence[ 8 ].
MM and JS participated in the study design, prepared, bottled and blinded the solution and contributed to follow up.
In the current study we are reporting the 5- year follow up and the length of the follow-up time may contribute to higher mortality as most patients die during early stages of follow up [ 26, 27].
Thus, any factor that influences a person to score extremely high or low at baseline but less extremely at follow-up, contributes to RTM.
Post training follow up might contribute for better HHP.
Furthermore, regular follow up could contribute substantially to the effectiveness of a short intervention.
Person-time of follow up was contributed by each eligible participant from the date of return of the 1984 questionnaire to the date of diagnosis of type 2 diabetes, 1 June 2002, or death from other causes.
Subjects who were in the cohort as of April 1, 2005, but were terminated from the study prior to completion of follow-up contributed person-time equivalent to the duration of time they spent in the study.
Both study sizes and duration of follow-up contributed to this limitation.
