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Table 2 Inputs and Outputs used in the DEA models to measure efficiency and environmental variables

From: On evaluating health centers groups in Lisbon and Tagus Valley: efficiency, equity and quality

Inputs

Outputs

Environmental variables

x1: doctors’ working hours

y1: number of adult health consultations

E V1: Population

x2: nurses’ working hours

y2: number of speciality consultations

E V2: Population density

x3: administrative staff working hours

y3: number of urgency consultations (SAP,CATUS)

E V3: Percentage of patients aged 65 years old or older

 

y4: number of home visits by doctors

E V4: Mortality Rate

x4: total costs

y5: total number of consultations

E V5: Percentage of patients withoutdesignated doctor

  

E V6: Distance to the nearest hospital

 

y6: number of group education sessions

E V7: Purchasing power

 

y7: number of consultations by nurses

 
 

y8: number of injections, vaccinations, curatives and other treatments

 
 

y9: number of home visits by nurses

 
 

y10: total number of nursing services

 
 

y11: total number of public health activities