^{*}

This study was designed to clarify population-social characteristics that influence the utilization patterns of hospitalized patients in a traditional korean hospital, thereby providing clinical data which would help further improvements of traditional korean medical service in particular the Acupuncture and Moxibustion.

We investigated population-social characteristics and annual utilization patterns of all patients who were hospitalized for more than 24 hours in a Korean Medical Hospital from January 2005 to December 2014. The obtained data were recorded in the EMR chart and statistical analysis was performed using SPSS 21.0. Additionally, data from the patients admitted to the department of Acupuncture and Moxibustion were analyzed separately.

All inpatients had a significant annual difference in age, gender, hospitalized department, and disease code annually but not in re-hospitalization number. Inpatients of the department of Acupuncture and Moxibustion also varied in their age, gender, and disease code annually, but not in re-hospitalization number.

Pearson correlation analysis on all inpatients showed that the mean days of hospital treatments had a negative correlation with all variables except medical care insurance. Total cost, cost per day per person and recuperation cost had a positive correlation with all variables except medical care insurance. There was no meaningful relationship between nonrecuperation cost and the variables.

Stepwise multiple regression analysis on all inpatients showed that the mean days of hospital treatments had a negative correlation with all variables except automobile insurance. The total hospitalization costs had a positive correlation with both general insurance and medical care insurance. Cost per day per person and recuperation cost had a positive correlation with the females. There was no meaningful relationship between non-recuperation cost and the variables.

Pearson correlation analysis on inpatients of the department of Acupuncture and Moxibustion inpatients showed that the mean days of hospital treatments had a positive correlation with all variables except general insurance and automobile insurance. Total cost and recuperation cost had a positive correlation with all variables except medical care insurance, and cost per day per person had a positive correlation with females and general insurance. There was no meaningful relationship between non-recuperation cost and the variables.

Stepwise multiple regression analysis on inpatients of the department of Acupuncture and Moxibustion inpatients, the mean days of hospital treatments, total cost, cost per day per person and recuperation cost had a positive correlation with general insurance. There was no meaningful relationship between non-recuperation cost and the variables.

Population-social characteristics of inpatients annually varies, and the change influences the utilization pattern.

Graph of gender ratio for total and Acupuncture & Moxibustion inpatients by year

Graph of age ratio for total and Acupuncture & Moxibustion inpatients by year

Graph of department ratio for total inpatients by year

Graph of disease code ratio for total inpatients by year

Graph of disease code ratio for total inpatients by year

The Number of Inpatients by Year

YEAR | Total inpatients | Acupuncture & Moxibustion inpatients |
---|---|---|

2005 | 1,486 | 268 |

2006 | 1,749 | 336 |

2007 | 1,717 | 436 |

2008 | 1,838 | 456 |

2009 | 2,128 | 541 |

2010 | 2,789 | 629 |

2011 | 2,992 | 567 |

2012 | 3,084 | 597 |

2013 | 3,196 | 632 |

2014 | 3,274 | 561 |

Crossover Analysis of Gender and Year for Total Inpatients by Year

Female | Male | Total | X^{2} | |||
---|---|---|---|---|---|---|

Year | 2005 | N | 842 | 644 | 1486 | 135.769^{‡} |

% | 56.7 | 43.3 | 100 | |||

2006 | N | 982 | 767 | 1749 | ||

% | 56.1 | 43.9 | 100 | |||

2007 | N | 1021 | 696 | 1717 | ||

% | 59.5 | 40.5 | 100 | |||

2008 | N | 1143 | 695 | 1838 | ||

% | 62.2 | 37.8 | 100 | |||

2009 | N | 1356 | 772 | 2128 | ||

% | 63.7 | 36.3 | 100 | |||

2010 | N | 1826 | 963 | 2789 | ||

% | 65.5 | 34.5 | 100 | |||

2011 | N | 2009 | 983 | 2992 | ||

% | 67.1 | 32.9 | 100 | |||

2012 | N | 2077 | 1007 | 3084 | ||

% | 67.3 | 32.7 | 100 | |||

2013 | N | 2081 | 1115 | 3196 | ||

% | 65.1 | 34.9 | 100 | |||

2014 | N | 2153 | 1121 | 3274 | ||

% | 65.8 | 34.2 | 100 | |||

| ||||||

Total | 15490 | 8763 | 24253 | |||

% | 63.9 | 36.1 | 100 |

Crossover Analysis of Gender and Year for Acupuncture & Moxibustion Inpatients by Year

Female | Male | Total | X^{2} | |||
---|---|---|---|---|---|---|

Year | 2005 | N | 150 | 118 | 268 | 38.136^{‡} |

% | 56 | 44 | 100 | |||

2006 | N | 170 | 166 | 336 | ||

% | 50.6 | 49.4 | 100 | |||

2007 | N | 228 | 208 | 436 | ||

% | 52.3 | 47.7 | 100 | |||

2008 | N | 246 | 210 | 456 | ||

% | 53.9 | 46.1 | 100 | |||

2009 | N | 302 | 239 | 541 | ||

% | 55.8 | 44.2 | 100 | |||

2010 | N | 382 | 247 | 629 | ||

% | 60.7 | 39.3 | 100 | |||

2011 | N | 359 | 208 | 567 | ||

% | 63.3 | 36.7 | 100 | |||

2012 | N | 367 | 230 | 597 | ||

% | 61.5 | 38.5 | 100 | |||

2013 | N | 373 | 259 | 632 | ||

% | 59 | 41 | 100 | |||

2014 | N | 360 | 201 | 561 | ||

% | 64.2 | 35.8 | 100 | |||

| ||||||

Total | 2937 | 2086 | 5023 | |||

% | 58.5 | 41.5 | 100 |

Crossover Analysis of Age and Year for Total Inpatients by Year

Age of 0–19 | Age of 20–39 | Age of 40–59 | Over the Age of 60 | Total | X^{2} | |||
---|---|---|---|---|---|---|---|---|

Year | 2005 | N | 52 | 279 | 641 | 514 | 1486 | 327.184^{‡} |

% | 3.5 | 18.8 | 43.1 | 34.6 | 100 | |||

2006 | N | 66 | 375 | 746 | 562 | 1749 | ||

% | 3.8 | 21.4 | 42.7 | 32.1 | 100 | |||

2007 | N | 61 | 391 | 760 | 505 | 1717 | ||

% | 3.6 | 22.8 | 44.3 | 29.3 | 100 | |||

2008 | N | 55 | 440 | 771 | 572 | 1838 | ||

% | 3.1 | 23.9 | 41.9 | 31.1 | 100 | |||

2009 | N | 67 | 566 | 912 | 583 | 2128 | ||

% | 3.1 | 26.6 | 42.9 | 27.4 | 100 | |||

2010 | N | 110 | 748 | 1236 | 695 | 2789 | ||

% | 3.9 | 26.9 | 44.3 | 24.9 | 100 | |||

2011 | N | 124 | 757 | 1463 | 648 | 2992 | ||

% | 4.1 | 25.3 | 48.9 | 21.7 | 100 | |||

2012 | N | 99 | 784 | 1598 | 603 | 3084 | ||

% | 3.2 | 25.4 | 51.8 | 19.6 | 100 | |||

2013 | N | 93 | 853 | 1552 | 698 | 3196 | ||

% | 2.9 | 26.7 | 48.6 | 21.8 | 100 | |||

2014 | N | 95 | 832 | 1619 | 728 | 3274 | ||

% | 2.9 | 25.4 | 49.5 | 22.2 | 100 | |||

| ||||||||

Total | 822 | 6025 | 11298 | 6108 | 24253 | |||

% | 3.4 | 24.8 | 46.6 | 25.2 | 100 |

Crossover Analysis of Age and Year for Acupuncture & Moxibustion Inpatients by Year

Age of 0–19 | Age of 20–39 | Age of 40–59 | Over the Age of 60 | Total | X^{2} | |||
---|---|---|---|---|---|---|---|---|

Year | 2005 | N | 14 | 72 | 81 | 101 | 268 | 132.111^{‡} |

% | 5.2 | 26.9 | 30.2 | 37.7 | 100 | |||

2006 | N | 11 | 89 | 132 | 104 | 336 | ||

% | 3.3 | 26.5 | 39.2 | 31 | 100 | |||

2007 | N | 11 | 132 | 178 | 115 | 436 | ||

% | 2.5 | 30.3 | 40.8 | 26.4 | 100 | |||

2008 | N | 19 | 152 | 153 | 132 | 456 | ||

% | 4.2 | 33.3 | 33.6 | 28.9 | 100 | |||

2009 | N | 20 | 183 | 212 | 126 | 541 | ||

% | 3.7 | 33.8 | 39.2 | 23.3 | 100 | |||

2010 | N | 23 | 195 | 269 | 142 | 629 | ||

% | 3.7 | 31 | 42.7 | 22.6 | 100 | |||

2011 | N | 18 | 156 | 275 | 118 | 567 | ||

% | 3.2 | 27.5 | 48.5 | 20.8 | 100 | |||

2012 | N | 12 | 163 | 307 | 115 | 597 | ||

% | 2 | 27.3 | 51.4 | 19.3 | 100 | |||

2013 | N | 21 | 158 | 327 | 126 | 632 | ||

% | 3.3 | 25.1 | 51.7 | 19.9 | 100 | |||

2014 | N | 11 | 129 | 287 | 134 | 561 | ||

% | 2 | 23 | 51.1 | 23.9 | 100 | |||

| ||||||||

Total | 160 | 1429 | 2221 | 1213 | 5023 | |||

% | 3.2 | 28.4 | 44.2 | 24.2 | 100 |

Crossover Analysis of Department and Year for Total Inpatients by Year

A | B | C | D | E | Total | X^{2} | |||
---|---|---|---|---|---|---|---|---|---|

Year | 2005 | N | 268 | 266 | 875 | 58 | 19 | 1486 | 788.919^{‡} |

% | 18 | 17.9 | 58.9 | 3.9 | 1.3 | ||||

2006 | N | 336 | 269 | 1002 | 60 | 44 | 1711 | ||

% | 19.6 | 15.7 | 58.6 | 3.5 | 2.6 | ||||

2007 | N | 436 | 253 | 958 | 51 | 29 | 1727 | ||

% | 25.2 | 14.6 | 55.5 | 3 | 1.7 | ||||

2008 | N | 456 | 299 | 1019 | 45 | 29 | 1848 | ||

% | 24.7 | 16.2 | 55.1 | 2.4 | 1.6 | ||||

2009 | N | 541 | 424 | 928 | 57 | 20 | 1970 | ||

% | 27.5 | 21.5 | 47.1 | 2.9 | 1 | ||||

2010 | N | 629 | 679 | 1304 | 29 | 22 | 2663 | ||

% | 23.6 | 25.5 | 49 | 1.1 | 0.8 | ||||

2011 | N | 495 | 812 | 1442 | 36 | 32 | 2817 | ||

% | 17.6 | 28.8 | 51.2 | 1.3 | 1.1 | ||||

2012 | N | 597 | 840 | 1420 | 59 | 26 | 2942 | ||

% | 20.3 | 28.6 | 48.2 | 2 | 0.9 | ||||

2013 | N | 632 | 976 | 1363 | 70 | 23 | 3064 | ||

% | 20.6 | 31.9 | 44.4 | 2.3 | 0.8 | ||||

2014 | N | 561 | 1109 | 1389 | 59 | 26 | 3144 | ||

% | 17.8 | 35.3 | 44.2 | 1.9 | 0.8 | ||||

| |||||||||

Total | 4951 | 5927 | 11700 | 524 | 270 | 23372 | |||

% | 21.2 | 25.3 | 50.1 | 2.2 | 1.2 |

A: Department of Acupuncture & Moxibustion

B: Department of Rehabilitation Medicine

C: Department of Internal Medicine

D: Department of Gynecology

E: Department of Pediatrics

Crossover Analysis of the Disease Code and Year for Total Inpatients by Year

C16 | C34 | C50 | G51 | I63 | M51 | S13 | S33 | Total | X^{2} | |||
---|---|---|---|---|---|---|---|---|---|---|---|---|

Year | 2010 | N | 104 | 81 | 111 | 188 | 206 | 94 | 401 | 215 | 1400 | 206.962^{‡} |

% | 7.4 | 5.8 | 7.9 | 13.4 | 14.7 | 6.7 | 28.6 | 15.4 | 100 | |||

2011 | N | 66 | 72 | 195 | 196 | 168 | 67 | 466 | 229 | 1459 | ||

% | 4.5 | 4.9 | 13.4 | 13.4 | 11.5 | 4.6 | 31.9 | 15.7 | 100 | |||

2012 | N | 60 | 53 | 230 | 167 | 165 | 77 | 521 | 243 | 1516 | ||

% | 4.0 | 3.5 | 15.2 | 11.0 | 10.9 | 5.1 | 34.4 | 16.0 | 100 | |||

2013 | N | 101 | 77 | 148 | 193 | 139 | 97 | 620 | 283 | 1658 | ||

% | 6.1 | 4.6 | 8.9 | 11.6 | 8.4 | 5.9 | 37.4 | 17.1 | 100 | |||

2014 | N | 122 | 112 | 153 | 173 | 102 | 115 | 602 | 269 | 1648 | ||

% | 7.4 | 6.8 | 9.3 | 10.5 | 6.2 | 7.0 | 36.5 | 16.3 | 100 | |||

| ||||||||||||

Total | 453 | 395 | 837 | 917 | 780 | 450 | 2610 | 1239 | 7681 | |||

% | 5.9 | 5.1 | 10.9 | 11.9 | 10.2 | 5.9 | 34.0 | 16.1 | 100 |

Crossover Analysis of the Disease Code and Year for Acupuncture & Moxibustion Inpatients by Year

G51 | M51 | M54 | S13 | S33 | Total | X^{2} | |||
---|---|---|---|---|---|---|---|---|---|

Year | 2010 | N | 167 | 66 | 49 | 44 | 93 | 419 | 57.410^{‡} |

% | 39.9 | 15.8 | 11.7 | 10.5 | 22.2 | ||||

2011 | N | 174 | 57 | 20 | 67 | 62 | 380 | ||

% | 45.8 | 15.0 | 5.3 | 17.6 | 16.3 | ||||

2012 | N | 148 | 71 | 23 | 71 | 86 | 399 | ||

% | 37.1 | 17.8 | 5.8 | 17.8 | 21.6 | ||||

2013 | N | 176 | 93 | 21 | 55 | 94 | 439 | ||

% | 40.1 | 21.2 | 4.8 | 12.5 | 21.4 | ||||

2014 | N | 148 | 102 | 32 | 47 | 79 | 408 | ||

% | 36.3 | 25.0 | 7.8 | 11.5 | 19.4 | ||||

| |||||||||

Total | 813 | 389 | 145 | 284 | 414 | 2045 | |||

% | 39.8 | 19.0 | 7.1 | 13.9 | 20.2 |

Correlation Analysis of Total Inpatients

1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | |
---|---|---|---|---|---|---|---|---|---|---|

1. The number of female patients | 1 | |||||||||

2. The number of male patients | 0.869^{†} |
1 | ||||||||

3. The number of general insurance patients | 0.982^{‡} |
0.793^{†} |
1 | |||||||

4. The number of medical care insurance patients | −0.545 | −0.423 | −0.514 | 1 | ||||||

5. The number of automobile insurance patients | 0.954^{†} |
0.939^{‡} |
0.882^{†} |
−0.547 | 1 | |||||

6. Mean days of hospital treatments | −0.826^{†} |
−0.852^{†} |
−0.744^{*} |
0.661^{*} |
−0.890^{†} |
1 | ||||

7. ln(Total cost) | 0.976^{‡} |
0.802^{†} |
0.994^{‡} |
−0.442 | 0.877^{†} |
−0.720^{*} |
1 | |||

8. ln(Cost per day per person) | 0.92^{‡} |
0.787^{†} |
0.915^{‡} |
−0.567 | 0.852^{†} |
−0.862^{†} |
0.917^{‡} |
1 | ||

9 ln(Recuperation cost per day per person) | 0.143 | −0.113 | 0.264 | −0.115 | −0.064 | 0.202 | 0.242 | 0.047 | 1 | |

10. ln(non-recuperation cost per day per person) | 0.829^{†} |
0.769^{†} |
0.798^{†} |
−0.490 | 0.812^{†} |
−0.875^{†} |
0.809^{†} |
0.955^{‡} |
−0.244 | 1 |

Correlation Analysis of Acupuncture & Moxibustion Inpatients

1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | |
---|---|---|---|---|---|---|---|---|---|---|

1. The number of female patients | 1 | |||||||||

2. The number of male patients | .814^{†} |
1 | ||||||||

3. The number of general insurance patients | .986^{‡} |
.883^{†} |
1 | |||||||

4. The number of medical care insurance patients | .368 | .45 | .405 | 1 | ||||||

5. The number of automobile insurance patients | .664^{*} |
.791^{†} |
.662^{*} |
.113 | 1 | |||||

6. Mean days of hospital treatments | .742^{*} |
.745^{*} |
.800^{†} |
.037 | .475 | 1 | ||||

7. ln(Total cost) | .933^{‡} |
.900^{‡} |
.963^{‡} |
.266 | .701^{*} |
.908^{‡} |
1 | |||

8. ln(Cost per day per person) | .634^{*} |
.54 | .649^{*} |
.023 | .399 | .880^{†} |
.786^{†} |
1 | ||

9. ln(Recuperation cost per day per person) | −.284 | −.317 | −.266 | −.237 | −.406 | .142 | −.163 | .345 | 1 | |

10. ln(non-recuperation cost per day per person) | .817^{†} |
.797^{†} |
.825^{†} |
.218 | .739^{*} |
.689^{*} |
.864^{†} |
.596 | −.544 | 1 |

Multiple Regression Analysis of the Mean Days of Hospital Treatments

Dependent variable | Independent variable | Coefficient | Model | ||||
---|---|---|---|---|---|---|---|

| |||||||

^{2} |
F | ||||||

Total inpatients | Mean days of hospital treatments | The number of automobile insurance patients | −.004 | −.890 | −5.531^{†} |
.793 | 30.596^{‡} |

| |||||||

Acupuncture & Moxibustion inpatients | Mean days of hospital treatments | The number of general insurance patients | .012 (.003) | .800 | 3.775^{†} |
.641 | 14.254^{†} |

Multiple Regression Analysis of Total Cost

Dependent variable | Independent variable | Coefficient | Model | ||||
---|---|---|---|---|---|---|---|

| |||||||

^{2} |
F | ||||||

Total inpatients | ln(Total cost) | The number of general insurance patients | .001 |
1.042 | 31.658^{‡} |
.994 | 653.677^{‡} |

The number of medical care insurance patients | .0007 |
.094 | 2.856^{*} |
||||

| |||||||

Acupuncture & Moxi-bustion inpatients | ln(Total cost) | The number of general insurance patients | .004 (.001) | .963 | 10.127^{‡} |
.928 | 102.557^{‡} |

Multiple Regression Analysis of Cost per Day per Person

Dependent variable | Independent variable | Coefficient | Model | ||||
---|---|---|---|---|---|---|---|

| |||||||

^{2} |
F | ||||||

Total inpatients | ln(Cost per day per person) | The number of female patients | .0001 |
.920 | 6.617^{‡} |
.846 | 47.780^{‡} |

Acupuncture & Moxibustion inpatients | ln(Cost per day per person) | The number of general insurance patients | .0003 |
.649 | 2.415^{*} |
.422 | 5.830^{*} |

Multiple Regression Analysis of Recuperation Cost

Dependent variable | Independent variable | Coefficient | Model | ||||
---|---|---|---|---|---|---|---|

| |||||||

^{2} |
F | ||||||

Total inpatients | ln(Recuperation cost per day per person) | The number of female patients | .0002 |
.829 | 4.199^{†} |
.688 | 17.635^{†} |

Acupuncture & Moxibustion inpatients | ln(Recuperation cost per day per person) | The number of general insurance patients | .001 |
.825 | 4.125^{†} |
.680 | 17.017^{†} |