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Table 1 Variables and Definitions

From: Geographical variations in the correlates of blood donor turnout rates: An investigation of Canadian metropolitan areas

Variable

Definition and units

Min

Max

Mean

SD

Dependent variable

     

DONORS

Donor rate in census tract

1

683

82.96

60.38

Socio-economic and demographic characteristics

POP15TO24

Proportion of population

of 15-24 years of age in census tract

0.04

0.66

0.14

0.03

POP25TO54

Proportion of population

25-54 years of age in census tract

0.15

0.77

0.44

0.06

POP55TO64

Proportion of population

55-64 years of age in census tract

0.02

0.26

0.11

0.03

POP65+

Proportion of population

of 65+ years of age in census tract

0.00

0.68

0.13

0.07

ENGLISH

Proportion of English-speaking

population in census tract

0.03

1.00

0.69

0.20

IMMIG

Proportion of immigrant

population in census tract

0.00

0.82

0.26

0.18

UNEMP

Proportion of unemployed

population in census tract

0.00

0.12

0.03

0.01

HEALTHOCC

Proportion of population in census

tract in health-related occupations

0.00

0.13

0.03

0.01

HIGHED

Proportion of population in census

tract with bachelors degree or higher

0.00

0.68

0.21

0.11

Ave Household Income

Average household income ($10,000)

1.73

81.08

7.91

3.96

Geographic variables

     

CMAPOP

Total CMA population (1,000,000s)

0.06

5.11

1.93

1.99

City Name

City-specific dummy variable

    

Service variables

     

Pop Based Access

Proportion of population-based accessibility within 4 km band (beds-hour/1000 people)

0.00

481.74

34.63

61.53