Systolic blood pressure (office/clinic)

Method

Systolic blood pressure taken at a clinic visit with the participant seated after a stated rest period, by auscultatory or validated automated cuff sphygmomanometer, averaged across the readings of that visit. A reading obtained by any other instrument is recorded as such on the edge.

The method is part of the endpoint identity. Studies measuring the same quantity by a different method are held as separate endpoints.

Notes

The instrument this replaces naming: PMID 41772302 measures by tail cuff in rodents. That example was in `measurement`, which is scored, so "tail-cuff" and "rodent" were vocabulary belonging to a human clinic-visit node — see the same repair on CAT:outcome/hospital-length-of-stay for the general form. 24-hour ambulatory systolic blood pressure is the near-miss and it is a genuine dissociation, not a nuisance. PMIDs 26683986 and 22574612 measured both in the same subjects: 22574612 found a significant fall here (-3.42 mmHg) with NO significant change in any ambulatory window. A single seated visit carries white-coat effect and single-timepoint variance; a 24-hour mean integrates sleep and activity and runs systematically lower. Merging them turns a real acquisition-dependent effect into a diluted null. Also distinct from diastolic pressure taken in the same cuff inflation, which dissociates from this one repeatedly, and from mean arterial pressure, a weighted combination that can be flat while this moves.