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Table 2 Estimation results for health care utilization

From: Long-run measurement of income-related inequalities in health care under universal coverage: evidence from longitudinal analysis in Korea

 

Inpatient care

Outpatient care

Emergency care

Pooled

Q1

Q2

Q3

Q4

Q5

Pooled

Q1

Q2

Q3

Q4

Q5

Pooled

Q1

Q2

Q3

Q4

Q5

Age

0.048 (0.004)

0.026 (0.008)

0.052 (0.008)

0.067 (0.010)

0.036 (0.008)

0.081 (0.015)

-0.045 (0.004)

0.013 (0.010)

-0.063 (0.010)

-0.074 (0.010)

-0.056 (0.009)

-0.050 (0.009)

-0.002 (0.0001)

-0.0008 (0.0003)

-0.001 (0.0002)

-0.002 (0.0002)

-0.002 (0.0002)

-0.001 (0.0003)

Female

-0.401 (0.063)

-1.881 (0.275)

-0.484 (0.127)

-0.085 (0.097)

-0.197 (0.106)

0.306 (0.100)

2.047 (0.081)

1.338 (0.275)

1.790 (0.184)

1.794 (0.166)

2.044 (0.149)

2.692 (0.154)

-0.018 (0.002)

-0.050 (0.007)

-0.026 (0.005)

-0.017 (0.005)

-0.006 (0.004)

-0.0007 (0.004)

Chronic diseases

0.505 (0.035)

0.762 (0.083)

0.600 (0.065)

0.370 (0.057)

0.349 (0.059)

0.285 (0.098)

5.200 (0.046)

5.897 (0.096)

5.285 (0.103)

4.939 (0.101)

4.556 (0.105)

4.493 (0.104)

0.026 (0.001)

0.031 (0.002)

0.027 (0.002)

0.026 (0.002)

0.020 (0.002)

0.021 (0.002)

Disabled

3.815 (0.468)

4.279 (0.892)

3.506 (0.647)

2.331 (0.636)

3.880 (1.112)

3.449 (1.755)

3.077 (0.335)

2.411 (0.583)

4.001 (0.685)

1.404 (0.734)

4.499 (0.837)

3.645 (0.961)

0.044 (0.007)

0.024 (0.013)

0.052 (0.015)

0.086 (0.018)

0.043 (0.016)

0.019 (0.017)

Lower education

0.417 (0.097)

0.170 (0.354)

0.297 (0.169)

0.731 (0.143)

0.430 (0.147)

0.851 (0.259)

6.149 (0.105)

5.282 (0.288)

6.270 (0.215)

6.528 (0.213)

5.789 (0.213)

5.375 (0.251)

0.041 (0.003)

0.027 (0.007)

0.034 (0.006)

0.042 (0.006)

0.053 (0.006)

0.054 (0.006)

Higher education

0.106 (0.059)

-0.677 (0.290)

0.098 (0.129)

0.241 (0.104)

0.063 (0.117)

0.159 (0.121)

-0.441 (0.085)

-0.670 (0.327)

-0.356 (0.194)

-0.394 (0.168)

-0.451 (0.154)

-1.229 (0.179)

-0.003 (0.002)

-0.019 (0.008)

-0.0009 (0.007)

-0.002 (0.005)

-0.009 (0.005)

-0.0003 (0.005)

Labor participation

-1.147 (0.077)

-1.743 (0.238)

-1.419 (0.166)

-0.962 (0.145)

-0.861 (0.177)

-0.875 (0.160)

-1.616 (0.100)

-0.604 (0.278)

-1.749 (0.219)

-1.930 (0.202)

-1.881 (0.196)

-1.508 (0.220)

-0.017 (0.003)

-0.032 (0.007)

-0.018 (0.006)

-0.018 (0.005)

-0.009 (0.005)

-0.007 (0.005)

Married

-0.550 (0.131)

0.511 (0.344)

-0.884 (0.236)

-1.161 (0.270)

-0.296 (0.224)

-1.386 (0.372)

3.011 (0.122)

2.379 (0.350)

2.437 (0.277)

3.296 (0.262)

3.759 (0.236)

4.323 (0.234)

0.027 (0.003)

0.032 (0.008)

0.001 (0.008)

0.042 (0.006)

0.027 (0.007)

0.023 (0.007)

Family members

0.019 (0.037)

-0.026 (0.122)

0.043 (0.063)

0.024 (0.058)

-0.046 (0.058)

-0.011 (0.077)

-0.947 (0.039)

-0.615 (0.117)

-1.060 (0.089)

-1.013 (0.079)

-0.727 (0.078)

-0.755 (0.080)

-0.008 (0.001)

0.003 (0.003)

-0.009 (0.002)

-0.012 (0.002)

-0.009 (0.002)

-0.010 (0.002)

Capital area

-0.411 (0.060)

-0.807 (0.260)

-0.561 (0.120)

-0.313 (0.098)

-0.267 (0.092)

-0.236 (0.106)

-0.519 (0.078)

-2.347 (0.274)

-0.545 (0.178)

-0.343 (0.159)

0.014 (0.142)

0.205 (0.149)

-0.012 (0.002)

-0.024 (0.006)

-0.010 (0.005)

-0.016 (0.005)

-0.003 (0.004)

-0.014 (0.004)

Public assistance

2.413 (0.401)

2.139 (0.461)

2.064 (0.910)

1.553 (1.186)

0.211 (1.984)

24.64 (11.74)

3.116 (0.376)

3.575 (0.456)

3.126 (0.844)

3.408 (1.663)

-4.653 (1.752)

-1.990 (3.209)

0.068 (0.011)

0.082 (0.013)

0.017 (0.020)

0.035 (0.048)

-0.002 (0.041)

0.200 (0.235)

Priv. health ins

-0.269 (0.088)

0.155 (0.324)

-0.330 (0.145)

-0.287 (0.153)

-0.391 (0.144)

-0.697 (0.212)

0.099 (0.112)

1.359 (0.322)

0.033 (0.235)

-0.051 (0.226)

-0.475 (0.239)

-0.141 (0.241)

-0.006 (0.003)

-0.012 (0.007)

0.003 (0.006)

-0.004 (0.006)

-0.007 (0.006)

-0.014 (0.007)

Monthly premium

0.014 (0.002)

0.029 (0.018)

0.032 (0.008)

0.020 (0.005)

0.019 (0.004)

0.010 (0.003)

0.011 (0.004)

-0.034 (0.020)

0.023 (0.011)

0.019 (0.009)

0.009 (0.007)

0.012 (0.005)

0.0005 (0.0001)

0.001 (0.0005)

0.0008 (0.0003)

0.0006 (0.0003)

0.0008 (0.0002)

0.0003 (0.0001)

Years

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Income quintiles

Yes

No

No

No

No

No

Yes

No

No

No

No

No

Yes

No

No

No

No

No

Constant

0.083 (0.355)

2.068 (1.112)

0.139 (0.449)

-0.594 (0.406)

0.287 (0.362)

-0.266 (0.514)

7.167 (0.280)

3.534 (0.727)

7.899 (0.578)

8.289 (0.526)

6.730 (0.518)

6.268 (0.523)

0.141 (0.008)

0.102 (0.021)

0.150 (0.017)

0.170 (0.015)

0.139 (0.014)

0.138 (0.016)

Observations

194,172

39,007

38,720

38,830

38,888

38,727

194,172

39,007

38,720

38,830

38,888

38,727

194,172

39,007

38,720

38,830

38,888

38,727

R-squared

0.024

0.019

0.034

0.027

0.020

0.027

0.310

0.310

0.303

0.272

0.272

0.248

0.016

0.021

0.016

0.017

0.014

0.012

  1. Coefficients in boldface represent the 5% level of statistical significance (p < 0.05). Robust standard errors adjusted by sampling weights are reported in parentheses