Mintek Pacemaker LV-T ユーザーズマニュアル

ページ / 172
60  Stratos LV/LV-T Technical Manual   
Multi-site Poolability and Gender Analysis 
The OPTION CRT/ATx clinical report includes data from multiple 
centers with centralized coordination, data processing, and 
reporting at BIOTRONIK. All of the clinical centers followed the 
requirements of an identical clinical protocol, and all of the 
clinical centers used the same methods to collect and report the 
clinical data. In order to justify pooling of the data from multiple 
centers, several analyses were completed. All of the centers 
were divided into two groups based on implant volume. 
Comparisons were then made between the patient populations 
based on the results of each of the endpoints. Additionally, 
analyses were performed on the data collected in the 
OPTION CRT/ATx clinical investigation in order to compare 
results between males and females. The first type of analysis 
compared enrollment by patient gender in each of the study and 
control groups. The second type of analysis compared 
effectiveness outcomes in each gender. 
The results of these analyses demonstrate poolability of the data 
between sites. There were no significant differences in the 
second primary endpoint or any of the secondary endpoints 
between high and low volume implant centers. 
The gender distribution in this clinical investigation is consistent 
within the study groups and includes a representative proportion 
of enrolled female participants (28.0% versus 72.0% male).  
There were no significant differences in any of the primary or 
secondary endpoints between the male and female population.