Methodological and Statistical Considerations in Assessing the Association Between Cumulative Blood Pressure and Cognitive Decline
Etika Rana · 2026
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Description
Etika Rana writes about method issues in a study of blood pressure build up and decline in thought. Her 2026 letter responds to a nationwide cohort study in China. That study found higher cumulative pressure tied to faster decline. Rana praises the topic and the large data set. She then raises several points that need clarification.
Cumulative pressure was built from the mean of two measures, in 2011 and 2013, times the interval. That misses change within a person over time, she argues. Of 17,708 people at baseline, only 7,877 were in the final analysis. Such loss can bias results, above all in aging groups. A comparison of those kept and those dropped would help. Missing data were handled with no imputation or sensitivity checks, she also notes.
Catalog record
| CREATOR | Etika Rana |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 5 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |