Objective
Previous research on subjective age (SA), that is, how young or old a person feels relative to their chronological age, has shown that older adults tend to feel younger than they are (by about 15-20%), but the extent of this effect depends, in part, on their health. However, as most of the studies have been conducted in Western countries, it is unclear how well these results generalize to culturally different samples. Objectives therefore were to examine SA in mid-aged and older adults from a very low-income setting in rural Burkina Faso, to examine associations between SA and health/quality of life-related measures, and to compare findings with Western studies.
Method
Representative, cross-sectional sample of N=3028 adults (≥ 40 years, recruited in 2018) from north-western Burkina Faso. Data included questionnaires on depression (PHQ-9) and quality of life (WHOQOL, including subjective health) as well as performance-based and objective health-related measures (CSI-D as cognitive screening, walking speed).
Results
Respondents felt on average 3% younger (SD =0.13) than their chronological age, with 48% (95% CI: 0.46-0.50) feeling younger – 27 percentage points lower than seen in representative Western studies. Lower depression, better walking speed, cognition, and quality of life, were all associated to younger SA.
Discussion
Mid-aged and older adults in Nouna felt less young than similar age groups in Western studies. One of the reasons may be that youthfulness is less of a value outside Western cultures. As in Western studies, parts of the variation in SA can be explained by health parameters.