Association Between Malnutrition and Oral Health in Dutch Nursing Home Residents: Results of the LPZ Study

According to the World Health Organization (WHO) and FDI World Dental Federation (FDI), malnutrition and bad oral health are of great concern to global health, especially among the older population. This study aimed to assess the associations between oral health problems ([artificial] teeth problems, chewing problems, and xerostomia) and malnutrition in residents of somatic and psychogeriatric wards in Dutch nursing homes. Data of the cross-sectional National Prevalence Measurement of Quality of Care study (Landelijke Prevalentiemeting Zorgproblemen study) in the Netherlands were used to evaluate nutritional status and oral health of 3220 residents, aged 65 or older and living in somatic or psychogeriatric wards in Dutch nursing homes. Cox regression was performed to calculate prevalence ratios (PR) of malnutrition among these residents. Of the total study population, 11.7% were malnourished, 28.6% suffered from xerostomia, 25.6% suffered from chewing problems, and 10.1% experienced problems eating due to (artificial) teeth problems. Within somatic wards, 9.0% were malnourished, whereas 13.2% of residents in psychogeriatric wards were malnourished. Increased risk for malnutrition was found among psychogeriatric residents who had problems with eating due to (artificial) teeth problems (PR 1.6, 95% CI 1.1–2.3). Poor oral health, mostly problems with eating due to (artificial) teeth problems, was associated with an almost twofold risk for malnutrition in older residents in Dutch nursing homes and even more so in psychogeriatric residents than in somatic residents.