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Table 2 Variables associated with frequent ED visits

From: Factors associated with frequent use of emergency-department services in a geriatric population: a systematic review

Variables Details Number of Studies Using this Variable Number of Studies in Which the Variable Was Significant References for Significant Studies
Healthcare-services use
 Hospital admission Past hospital admission 8 6 [20, 23,24,25,26,27]
 Emergency department Past ED visit 4 2 [20, 27]
 Level of general practitioner’s workload Low N of managed patients 1 1 [27]
  Low or moderate % of elderly managed 1 1 [27]
 Other Attitude towards health-service use 1 1 [25]
  More than one source of healthcare 1 1 [25]
Demographic
 Age Older age 8 3 [23, 24, 27]
 Sex/gender Being male 8 2 [21, 27]
 Location Rural residence adjacent to an urban center 2 2 [23, 24]
ED within 10 km from place of residence 1 1 [27]
Socioeconomic
 Social support Lack of support 4 2 [20, 26]
 Housing status Living alone 5 1 [21]
 Family status Married Widowed 3 1 [20]
 Income Medicaid coverage 3 2 [23, 24]
Health status
 Prescribed drugs Number of drugs prescribed 3 2 [22, 27]
 Mental illness Depression 3 1 [20]
 Alcohol consumption Less than daily 1 1 [20]
 Physical diseases Heart disease 2 2 [20, 22]
History of diabetes 1 1 [20]
Respiratory disorder 1 1 [20]
Pulmonary neoplasm 2 1 [22]
 Number of conditions Number of functional problems 2 1 [21]
Number of active diseases 2 1 [22]
 Measure of comorbidity Case mix 2 2 [23, 24]
 ED-discharge diagnosis Digestive 3 1 [20]
 Questionnaire score Physical ability Per unit increase 1 1 [26]
Anxiety Per unit increase 1 1 [26]
Condition of partial or complete dependence (Activities of daily living) 2 1 [22]
Score on the Identification of Seniors at Risk screening tool (ISAR) 1 1 [20]