Table 4.
Multiple logistic regression analysis of utilization of the 5 largest hospitals and the other tertiary hospitals in Seoul
| Five largest hospitals |
The other tertiary hospitals |
|||
|---|---|---|---|---|
| Incident episodes | Prevalent episodes | Incident episodes | Prevalent episodes | |
| Episode type | ||||
| Medical | 1.00 (reference) | 1.00 (reference) | 1.00 (reference) | 1.00 (reference) |
| Surgical | 1.31 (1.30, 1.32) | 2.01 (1.99, 2.02) | 0.94 (0.93, 0.95) | 0.81 (0.80, 0.82) |
| Sex | ||||
| Male | 1.27 (1.26, 1.28) | 1.16 (1.15, 1.16) | 0.83 (0.82, 0.84) | 0.85 (0.85, 0.86) |
| Female | 1.00 (reference) | 1.00 (reference) | 1.00 (reference) | 1.00 (reference) |
| Age (y) | ||||
| 0-29 | 5.48 (5.40, 5.56) | 7.18 (7.08, 7.28) | 0.77 (0.75, 0.79) | 0.55 (0.54, 0.57) |
| 30-39 | 2.11 (2.08, 2.14) | 2.34 (2.30, 2.37) | 1.42 (1.40, 1.45) | 1.11 (1.08, 1.13) |
| 40-49 | 1.77 (1.75, 1.79) | 1.83 (1.81, 1.84) | 1.31 (1.29, 1.33) | 1.15 (1.13, 1.17) |
| 50-59 | 1.79 (1.78, 1.81) | 1.77 (1.76, 1.79) | 1.22 (1.20, 1.23) | 1.16 (1.15, 1.17) |
| 60-69 | 1.66 (1.65, 1.68) | 1.60 (1.58, 1.61) | 1.17 (1.16, 1.19) | 1.16 (1.14, 1.17) |
| ≥70 | 1.00 (reference) | 1.00 (reference) | 1.00 (reference) | 1.00 (reference) |
| Income | ||||
| Medical Aid | 1.00 (reference) | 1.00 (reference) | 1.00 (reference) | 1.00 (reference) |
| 1 (lowest) | 2.32 (2.28, 2.37) | 2.13 (2.09, 2.16) | 1.47 (1.44, 1.51) | 1.31 (1.28, 1.34) |
| 2 | 2.45 (2.40, 2.49) | 2.14 (2.10, 2.17) | 1.46 (1.43, 1.50) | 1.36 (1.33, 1.39) |
| 3 | 2.91 (2.86, 2.96) | 2.59 (2.55, 2.63) | 1.50 (1.47, 1.54) | 1.33 (1.30, 1.36) |
| 4 | 3.65 (3.59, 3.72) | 3.18 (3.13, 3.23) | 1.55 (1.52, 1.59) | 1.29 (1.26, 1.32) |
| 5 (highest) | 4.92 (4.83, 5.01) | 4.42 (4.36, 4.49) | 1.57 (1.54, 1.61) | 1.23 (1.21, 1.26) |
| Missing | 3.13 (3.05, 3.22) | 2.69 (2.63, 2.75) | 1.36 (1.31, 1.42) | 1.32 (1.28, 1.36) |
| Residential area | ||||
| Seoul | 4.57 (4.53, 4.62) | 5.59 (5.53, 5.65) | 18.77 (18.38, 19.16) | 18.47 (18.07, 18.88) |
| Gyeonggi, Incheon | 1.78 (1.77, 1.80) | 2.40 (2.38, 2.43) | 3.95 (3.87, 4.04) | 4.37 (4.27, 4.47) |
| Chungbuk | 2.70 (2.65, 2.74) | 3.05 (3.00, 3.11) | 2.91 (2.81, 3.01) | 3.22 (3.11, 3.33) |
| The Chungnam area1 | 2.03 (2.00, 2.06) | 2.30 (2.27, 2.34) | 2.39 (2.33, 2.46) | 2.53 (2.46, 2.60) |
| Gangwon | 1.77 (1.74, 1.80) | 1.91 (1.87, 1.94) | 1.97 (1.90, 2.04) | 1.86 (1.79, 1.93) |
| Junbuk | 1.26 (1.24, 1.29) | 1.42 (1.40, 1.45) | 1.39 (1.34, 1.44) | 1.48 (1.42, 1.54) |
| The Junnam area2 | 1.09 (1.07, 1.10) | 1.16 (1.14, 1.18) | 1.28 (1.25, 1.32) | 1.36 (1.32, 1.40) |
| The Gyeongbuk area3 | 1.23 (1.21, 1.24) | 1.35 (1.33, 1.37) | 1.31 (1.28, 1.35) | 1.47 (1.43, 1.51) |
| The Gyeongnam area4 | 1.00 (reference) | 1.00 (reference) | 1.00 (reference) | 1.00 (reference) |
| Jeju | 1.77 (1.73, 1.82) | 1.73 (1.68, 1.78) | 1.71 (1.62, 1.80) | 1.55 (1.46, 1.65) |
| Residential area type | ||||
| Urban | 0.79 (0.79, 0.80) | 0.80 (0.80, 0.81) | 0.59 (0.58, 0.60) | 0.60 (0.59, 0.61) |
| Suburban | 1.09 (1.08, 1.10) | 1.07 (1.05, 1.08) | 1.02 (1.00, 1.04) | 1.04 (1.02, 1.06) |
| Rural | 1.00 (reference) | 1.00 (reference) | 1.00 (reference) | 1.00 (reference) |
| Time period | ||||
| Before policy | 1.00 (reference) | 1.00 (reference) | 1.00 (reference) | 1.00 (reference) |
| After policy | 1.14 (1.14, 1.15) | 1.13 (1.12, 1.13) | 0.97 (0.96, 0.98) | 0.94 (0.93, 0.95) |
Values are presented as odds ratio (95% confidence interval).
1
Daejeon, Sejeong, Chungnam.
2
Gwangju, Jeonnam.
3
Daegu, Gyeongbuk.
4
Busan, Ulsan, Gyeongnam.