Individual characteristics associated with the utilization of nursing care in the very old population: a cross-sectional study

BACKGROUND: As older adults ≥80 years are often underrepresented in previous studies, little is known about their characteristics associated with the utilization of nursing care services. Therefore, this study examined individual (predisposing, enabling, and need) predictors of nursing care utilization in the very old population of North Rhine-Westphalia (NRW) in Germany. METHODS: Data from a representative cross-sectional study included 1531 community-dwelling individuals and nursing home residents aged ≥80 years. Multinomial regression was applied to investigate the factors that explain the use of outpatient care services, day care, and/or private care (odpNCU), and inpatient nursing care (inpNCU). RESULTS: Overall, 1083 (69.9%) participants did not use nursing care services (noNCU), 339 (21.9%) used outpatient, day, and/or private care, and 127 (8.2%) used inpatient nursing care. Compared to noNCU, odpNCU was associated with a higher likelihood of being older [odds ratio (OR) = 1.06, 95% confidence interval (CI): 1.01-1.11], having no partner (OR = 0.58, 95%CI: 0.37-0.91), experiencing higher functional (basic activities of daily living, OR = 0.02, 95%CI: 0.01-0.04; instrumental activities of daily living, OR = 0.18, 95%CI: 0.11-0.30) and cognitive disabilities (OR = 0.63, 95%CI: 0.44-0.89). Compared to noNCU, nursing home residents were more likely older (OR = 1.14, 95%CI: 1.07-1.22), had lower socioeconomic status (OR = 0.98, 95%CI: 0.97-1.00), were childless (OR = 3.83, 95%CI: 1.71-8.56) and without partners (OR = 0.43, 95%CI: 0.20-0.96), socially isolated (OR = 3.94, 95%CI: 2.06-7.55), were more likely to be lonely (OR = 2.94, 95%CI: 1.58-7.89), more functionally (basic activities of daily living, OR = 0.01, 95%CI: 0.00-0.03; instrumental activities of daily living, OR = 0.04, 95%CI: 0.02-0.09) and cognitively impaired (OR = 0.48, 95%CI: 0.31-0.74), but they were less likely to experience five or more chronic conditions (OR = 0.42, 95%CI: 0.20-0.88) and less likely to be physically pre-frail (OR = 0.24, 95%CI: 0.10-0.58) and frail (OR = 0.09, 95%CI: 0.03-0.27). CONCLUSIONS: Individual need factors dominated in explaining odpNCU, suggesting that the very old population in NRW may have equitable access to these services. As social structure, region, and social resources explain inpNCU, this type of care may be inequitably accessible.