Risk factors were associated with malnutrition such as the age more than 70 years (OR = 3.6; CI = 1.21 - 10.87); single, widowed, divorced state (OR = 2.6; CI = 1.42 - 4.69); polymorbidities (OR = 4.3; CI = 2.07 - 8.74); basic daily living activities with assistance (OR = 25.91; CI = 8.67 - 77.47) and dementia (OR = 18.7; CI = 8.17 - 39.8).