Association of kyphotic posture with loss of independence and mortality in a community-based prospective cohort study: the Locomotive Syndrome and Health Outcomes in Aizu Cohort Study (LOHAS).
BMJ Open
; 12(3): e052421, 2022 03 31.
Article
in En
| MEDLINE
| ID: mdl-35361638
ABSTRACT
OBJECTIVES:
This study aimed to investigate the association between kyphotic posture and future loss of independence (LOI) and mortality in community-dwelling older adults.DESIGN:
Prospective cohort study.SETTING:
Two Japanese municipalities.PARTICIPANTS:
We enrolled 2193 independent community-dwelling older adults aged≥65 years at the time of their baseline health check-up in 2008. Kyphotic posture was evaluated using the wall-occiput test (WOT) and classified into three categories non-kyphotic, mild (>0 and ≤4 cm) and severe (>4 cm). PRIMARY AND SECONDARY OUTCOMEMEASURES:
The primary outcome was mortality and the secondary outcomes were LOI (new long-term care insurance certification levels 1-5) and a composite of LOI and mortality. A Cox proportional hazards model was used to estimate the adjusted HRs (aHRs).RESULTS:
Of the 2193 subjects enrolled, 1621 were included in the primary analysis. Among these, 272 (17%) and 202 (12%) were diagnosed with mild and severe kyphotic postures, respectively. The median follow-up time was 5.8 years. Compared with the non-kyphotic group, the aHRs for mortality were 1.17 (95% CI 0.70 to 1.96) and 1.99 (95% CI 1.20 to 3.30) in the mild and severe kyphotic posture groups, respectively. In the secondary analysis, a consistent association was observed for LOI (mild aHR 1.70, 95% CI 1.13 to 2.55; severe aHR 2.08, 95% CI 1.39 to 3.10) and the LOI-mortality composite (mild aHR 1.27, 95% CI 0.90 to 1.79; severe aHR 1.83, 95% CI 1.31 to 2.56).CONCLUSION:
Kyphotic posture was associated with LOI and mortality in community-dwelling older adults. Identifying the population with kyphotic posture using the WOT might help improve community health.Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Kyphosis
Type of study:
Etiology_studies
/
Incidence_studies
/
Observational_studies
/
Prognostic_studies
/
Risk_factors_studies
Limits:
Aged
/
Humans
Language:
En
Journal:
BMJ Open
Year:
2022
Document type:
Article
Affiliation country:
Japan