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Table 4 Institutional characteristics associated with inpatient medical expenditures, univariate and bivariate analyses: Public insurance (NHI) beneficiaries versus public aid (AID) beneficiaries (N = 160,465).

From: Psychiatric inpatient expenditures and public health insurance programmes: analysis of a national database covering the entire South Korean population

 

NHI beneficiary

AID beneficiary

 
 

(n = 92,959)

(n = 67,506)

 

Characteristics

Median

(Range)

Median

(Range)

p-value

Type

<.0001**

 

<.0001**

  

   Psychiatric clinic

1,437.0

(4.3-27262.6)

2,762.2

(30.8-19153.0)

 

   Psychiatric hospital

2,586.6

(27.3-30723.7)

11,348.8

(29.7-25099.7)

 

   Clinic

2,041.7

(5.6-22704.3)

3,110.8

(30.8-16953.5)

<.0001***

   Hospital

2,100.7

(1.4-48222.6)

4,892.3

(8.6-23561.7)

 

   General hospital

1,256.0

(0.4-40935.2)

3,770.7

(26.0-26789.5)

 

   Tertiary care hospital

1,583.8

(7.7-39622.3)

1,709.1

(30.8-16740.0)

 

   Long-term care hospital

2,837.5

(18.5-36711.0)

2,632.1

(29.8-19506.7)

 

Ownership

<.0001**

 

<.0001**

  

Government

2,119.8

(4.0-48222.6)

2,570.0

(8.6-20333.3)

 

Private group

1,701.0

(0.4-40935.2)

7,252.0

(26.0-26789.5)

<.0001***

Private person

1,715.6

(1.4-31442.3)

3,942.4

(10.5-21744.0)

 

Location

<.0001**

 

<.0001**

  

Metropolis

1,656.4

(3.5-48222.6)

4,281.2

(8.6-21383.7)

 

Small/medium city

1,755.2

(0.4-36711.0)

5,965.5

(8.6-26789.5)

 

Rural area

2,478.3

(1.4-29575.9)

5,594.3

(17.1-23561.7)

 

Number of beds

<.0001**

 

<.0001**

  

<260

1,710.5

(4.1-48222.6)

3,648.6

(17.1-19775.5)

 

260-399

1,906.5

(0.4-33640.2)

5,353.5

(8.6-21744.0)

<.0001***

400-626

1,717.6

(4.1-40935.2)

6,208.4

(8.6-23561.7)

 

≥ 627

1,718.0

(0.8-39622.3)

6,995.8

(8.6-26789.5)

 
 

R

p-value

R

p-value

p-value**

Human resources: Score 1

-0.182

0.000

-0.231

0.000

<.0001

Pro of male patients

0.154

0.000

0.078

0.000

<.0001

Pro of patients ≥ 65-year-old

0.052

0.000

-0.080

0.000

<.0001

Pro of patients diagnosed into F0 or F2

0.187

0.000

0.161

0.000

<.0001

Pro of patients receiving AID

0.173

0.000

0.272

0.000

<.0001

  1. Note: Medical expenditures are expressed in 1000 units of Korean Won (KRW); USD 1 = KRW 948.80 (June, 2006); pro denotes proportion; **p-values are based on the Kruskal-Wallis test; ***p-values are based on Friedman's two-way non-parametric ANOVA test for the interaction terms between the public health insurance programme and each characteristic. R denotes the Pearson correlation coefficient; Score 1 = 0.54 × Number of physicians per 100 beds + 0.55 × Number of nurses per 100 beds + 0.33 × Number of nursing assistants per 100 beds + 0.55 × Number of other healthcare and social service professionals per 100 beds.
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BMC Health Services Research

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