comparative modifier characteristic increased decreased quality https://orcid.org/0000-0002-7356-1779 2026-05-05T00:00:00Z PATO:0102004 Usage (agreed uPheno call 2026-06-12): 'decreased' is only to be used to define pre-coordinated value terms via 'has modifier' (RO:0002573), e.g. 'decreased weight' EquivalentTo 'weight and has_modifier some decreased'. Do NOT use 'decreased' directly in phenotype patterns, and do NOT use it as an is_a parent of a domain characteristic. If a pre-coordinated value term exists for the bearer and direction, use that term; if none exists, request that it be added. Distinct from the now-obsolete PATO:0002301 (decreased quality), which was a grouping class for pre-coordinated physical/process qualities. A comparative modifier characteristic indicating that the bearer characteristic has a value less than a reference.