Aging & Longevity

Latent profiles of active ageing and their association with oral health-related quality of life among rural older adults in China.

TL;DR

Active ageing among rural older adults in China exhibits heterogeneous characteristics across four distinct profiles, with higher levels of active ageing associated with significantly better oral health-related quality of life.

Key Findings

Latent profile analysis identified four distinct active ageing profiles among rural older adults in China.

  • The four profiles were: low-level (12.38%), medium-level with low social integration (17.56%), medium-level with low financial security (35.79%), and high-level (34.28%)
  • The study used a cross-sectional survey of 598 rural older adults conducted from April to October 2024
  • Latent profile analysis (LPA) was the statistical method used to identify these patterns
  • The largest group was medium-level with low financial security (35.79%), followed closely by high-level (34.28%)

Profile membership in active ageing categories was significantly associated with nine factors including age, educational attainment, and income.

  • Multinomial logistic regression was used to analyse predictors of category membership
  • All nine identified factors reached statistical significance (all p < 0.05)
  • Age, educational attainment, and income were specifically named as significant predictors
  • These findings highlight the sociodemographic determinants of active ageing heterogeneity in rural Chinese older adults

Lower active ageing profiles were significantly associated with worse oral health-related quality of life (OHRQoL) compared to the high-level active ageing profile.

  • Negative binomial regression was used with Profile 4 (high-level) as the reference category
  • Profile 1 (low-level) had significantly higher OHIP-14 total scores (β = 0.581, 95% CI: 0.277–0.885, p < 0.001)
  • Profile 2 (medium-level with low social integration) also had significantly higher OHIP-14 scores (β = 0.561, 95% CI: 0.301–0.821, p < 0.001)
  • Profile 3 (medium-level with low financial security) similarly showed significantly higher OHIP-14 scores (β = 0.480, 95% CI: 0.261–0.698, p < 0.001)
  • Higher OHIP-14 scores indicate more severely impaired OHRQoL, meaning all three lower profiles had worse oral health-related quality of life than the high-level profile

A significant gradient in oral health-related quality of life was observed across the four active ageing profiles.

  • The gradient pattern showed progressively worse OHRQoL from the high-level profile to the low-level profile
  • The low-level active ageing profile showed the greatest impairment in OHRQoL (β = 0.581)
  • The medium-level with low financial security profile showed the smallest impairment among the three lower profiles (β = 0.480)
  • The authors concluded that 'the active ageing of rural adults in China exhibits heterogeneous characteristics and shows a significant gradient in oral health-related quality of life'

The study population consisted of rural older adults in China, a group whose heterogeneous active ageing characteristics had not been fully elucidated prior to this research.

  • Sample size was 598 rural older adults
  • Data collection occurred from April to October 2024
  • A cross-sectional survey design was employed
  • OHRQoL was measured using the OHIP-14 (Oral Health Impact Profile-14) instrument
  • The authors noted that 'the association between active ageing and oral health-related quality of life (OHRQoL) has not been systematically explored' prior to this study

What This Means

This research suggests that 'active ageing' — a concept encompassing health, social participation, financial security, and other dimensions of well-being in older age — does not look the same for all older adults in rural China. By surveying 598 rural older adults, researchers identified four distinct groups: a small low-level group (about 12%), two medium-level groups distinguished by either low social integration or low financial security (about 18% and 36% respectively), and a high-level group (about 34%). People's placement into these groups was shaped by factors like age, education, and income, suggesting that socioeconomic circumstances play a major role in how well older rural adults are able to age actively. This research also suggests a clear link between active ageing and oral health-related quality of life — essentially, how much oral health problems affect a person's daily life and well-being. Compared to those in the high-level active ageing group, people in all three lower-level groups reported significantly worse impacts of oral health on their quality of life, as measured by a standard questionnaire called the OHIP-14. The pattern formed a gradient, with the lowest active ageing group experiencing the greatest oral health burden. The practical implication of these findings is that rural older adults in China are not a uniform group, and one-size-fits-all approaches to improving their well-being may be insufficient. The authors suggest that targeted, differentiated interventions are needed for different subgroups — for example, addressing social isolation for those with low social integration, or financial barriers for those with low financial security — alongside broader efforts to strengthen rural oral health services.

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Citation

Song X, Yin Z, Bao J, Li S, Sun Y, Ren C, et al.. (2026). Latent profiles of active ageing and their association with oral health-related quality of life among rural older adults in China.. Frontiers in public health. https://doi.org/10.3389/fpubh.2026.1809594