Skip to main content

Table 1 Definition of the selected variables

From: Modeling count data for health care utilization: an empirical study of outpatient visits among Vietnamese older people

Variable

Definition

Mean

S.D

Outpatient visits

Number of outpatient visits in the last 12 months

4.336

6.437

Age

Age in years

71.465

7.977

Sex

Male = 0; female = 1

0.599

0.490

Ethnicity

Non-Kinh people = 0; Kinh people = 1

0.894

0.307

Household size

Log of household size

1.251

0.567

Place of residence

Rural = 0; urban = 1

0.262

0.439

Red River Delta

= 1, otherwise = 0

0.233

0.423

East Northern Mountainous areas

= 1, otherwise = 0

0.098

0.298

West Northern Mountainous areas

= 1, otherwise = 0

0.024

0.153

North Central Coast

= 1, otherwise = 0

0.098

0.298

South Central Coast

= 1, otherwise = 0

0.122

0.328

Central Highlands

= 1, otherwise = 0

0.044

0.024

Southeast

= 1, otherwise = 0

0.135

0.342

Mekong Delta

= 1, otherwise = 0

0.245

0.430

Marital status

Married = 0; single = 1

0.405

0.491

Social health insurance

No health insurance = 0; has health insurance = 1

0.549

0.497

Health subsidy

No health subsidy = 0; received health subsidy = 1

0.587

0.493

Employment status

Not working = 0; working = 1

0.424

0.494

Education

Education of respondents in years

4.075

3.642

Household income

Log of household income

10.017

0.878

Smoking

Not smoking = 0; smoking = 1

0.323

0.468

Non-communicable diseases (NCDs)

No NCD = 0; having at least one NCD = 1

0.356

0.479

Disability

No disability = 0; having at least one disability = 1

0.285

0.452

  1. S.D. denotes standard deviation