Geriatrics & gerontology international · 2026
Repeated Gastrointestinal Disease Reporting and Subsequent Multidomain Health Deterioration: Longitudinal Analyses in CHARLS and ELSA.
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Peng Ding, Zhai Huihong
Аннотация
AIM: To examine whether repeated gastrointestinal disease reporting was associated with subsequent multidomain health deterioration and whether the direction of association was consistent across two national aging cohorts.
METHODS: CHARLS was the primary longitudinal cohort. Participants with at least two gastrointestinal exposure assessments across waves 1-3 were classified as never, intermittent/low, or persistent/high reporting. The primary composite comprised cognitive, ADL, IADL, or depressive-symptom deterioration. Logistic and robust Poisson models were fitted. ELSA provided a cross-cohort consistency analysis using a pre-Wave-1 gastrointestinal disease/medication proxy.
RESULTS: CHARLS included 12 144 participants/5607 events; fully adjusted models included 9555/4523. Adjusted relative risks were 1.10 (95% CI 1.03-1.18) for intermittent/low and 1.06 (1.01-1.11) for persistent/high reporting. In ELSA, the fully adjusted three-level education model included 3286/1752 and yielded an odds ratio of 1.24 (0.97-1.59); the longitudinal-weighted estimate was 1.21 (0.90-1.63). Gastrointestinal exposure produced negligible incremental discrimination in either cohort.
CONCLUSIONS: Repeated gastrointestinal reporting was associated with a small increase in subsequent deterioration in CHARLS, while ELSA estimates were directionally similar but less precise. Gastrointestinal history may prompt broader geriatric assessment but is not a stand-alone predictor or evidence of causality.
METHODS: CHARLS was the primary longitudinal cohort. Participants with at least two gastrointestinal exposure assessments across waves 1-3 were classified as never, intermittent/low, or persistent/high reporting. The primary composite comprised cognitive, ADL, IADL, or depressive-symptom deterioration. Logistic and robust Poisson models were fitted. ELSA provided a cross-cohort consistency analysis using a pre-Wave-1 gastrointestinal disease/medication proxy.
RESULTS: CHARLS included 12 144 participants/5607 events; fully adjusted models included 9555/4523. Adjusted relative risks were 1.10 (95% CI 1.03-1.18) for intermittent/low and 1.06 (1.01-1.11) for persistent/high reporting. In ELSA, the fully adjusted three-level education model included 3286/1752 and yielded an odds ratio of 1.24 (0.97-1.59); the longitudinal-weighted estimate was 1.21 (0.90-1.63). Gastrointestinal exposure produced negligible incremental discrimination in either cohort.
CONCLUSIONS: Repeated gastrointestinal reporting was associated with a small increase in subsequent deterioration in CHARLS, while ELSA estimates were directionally similar but less precise. Gastrointestinal history may prompt broader geriatric assessment but is not a stand-alone predictor or evidence of causality.