Introduction
Institutional setting
Data and descriptive statistics
DTC data and the construction of treatment density
Treatment | Specialty | Number of treatments | Average age | Percentage men | Number of hospitals and clinics\(^\mathrm{b}\)
| Ex-ante chance supply sensitiveness | |||
---|---|---|---|---|---|---|---|---|---|
2006 | 2007 | 2008 |
\(2009^\mathrm{a}\)
| ||||||
Cataract | Ophthalmology | 134,107 | 144,874 | 160,231 | 145,339 | 70 | 39 | 117 | High |
Tonsillectomy | Otolaryngology | 61,707 | 62,000 | 57,007 | 53,178 | 10 | 50 | 103 | High |
Hernia | Neurology | 49,682 | 49,180 | 53,130 | 52,001 | 49 | 51 | 107 | Medium |
Varicose veins | Dermatology | 37,366 | 45,526 | 53,510 | 56,051 | 49 | 15 | 139 | High |
Varicose veins | Surgery | 26,551 | 30,721 | 34,491 | 33,912 | 49 | 25 | 123 | High |
Inguinal hernia | Surgery | 29,105 | 30,983 | 30,415 | 27,555 | 48 | 89 | 109 | Medium |
Arthrosis (knee) | Orthopedics | 30,561 | 32,721 | 34,272 | 31,016 | 60 | 39 | 111 | Medium |
Arthrosis (hip) | Orthopedics | 21,765 | 22,155 | 23,222 | 21,099 | 66 | 32 | 104 | Medium |
Hip fracture | Surgery | 9,428 | 9,648 | 10,141 | 9,493 | 76 | 30 | 96 | Weak |
Treatment | Specialty | Average treatment density | |||
---|---|---|---|---|---|
\(2006\)
|
\(2007\)
|
\(2008\)
|
\(2009\)
| ||
Cataract | Ophthalmology | 7.6 (4.4) | 8.5 (4.6) | 9.5 (5.2) | 8.7 (4.8) |
Tonsillectomy | Otolaryngology | 3.7 (2.1) | 3.7 (2.0) | 3.3 (1.9) | 3.1 (1.9) |
Hernia | Neurology | 2.8 (1.6) | 2.9 (1.6) | 3.1 (1.8) | 3.1 (2.0) |
Varicose veins | Dermatology | 2.2 (2.2) | 2.7 (2.3) | 3.3 (2.8) | 3.4 (2.8) |
Varicose veins | Surgery | 1.6 (1.1) | 1.9 (1.3) | 2.1 (1.5) | 2.1 (1.5) |
Inguinal hernia | Surgery | 1.8 (1.0) | 2.0 (1.1) | 1.9 (1.1) | 1.7 (1.1) |
Arthrosis (knee) | Orthopedics | 1.8 (1.3) | 2.0 (1.3) | 2.1 (1.5) | 2.0 (1.3) |
Arthrosis (hip) | Orthopedics | 1.3 (1.0) | 1.4 (1.0) | 1.4 (1.1) | 1.3 (1.0) |
Hip fracture | Surgery | 0.6 (0.9) | 0.6 (0.8) | 0.6 (1.0) | 0.5 (0.9) |
Control variables
2006 | 2007 | 2008 | 2009 | |
---|---|---|---|---|
Total number zip codes | 4,007 | 4,014 | 4,015 | 4,019 |
Number of zip codes included in regressions | 2,603 | 2,640 | 2,864 | 2,929 |
Average population | 5,101 | 5,222 | 5,020 | 5,094 |
Control variables (standard deviation) | ||||
age0_5 (%)
| 6.1 (1.7) | 5.9 (1.7) | 5.7 (1.7) | 5.5 (1.6) |
age5_10
| 6.3 (1.6) | 6.3 (1.6) | 6.4 (1.6) | 6.3 (1.6) |
age10_15
| 6.3 (1.5) | 6.3 (1.5) | 6.2 (1.5) | 6.2 (1.5) |
age15_20
| 6.1 (1.3) | 6.2 (1.4) | 6.2 (1.3) | 6.2 (1.3) |
age20_25
| 5.5 (2.7) | 5.5 (2.9) | 5.5 (2.9) | 5.6 (2.9) |
age25_30
| 5.5 (2.6) | 5.4 (2.6) | 5.4 (2.6) | 5.4 (2.6) |
age30_35
| 6.5 (2.0) | 6.1 (2.0) | 5.8 (2.0) | 5.6 (2.0) |
age35_40
| 7.9 (1.6) | 7.8 (1.6) | 7.6 (1.6) | 7.3 (1.6) |
age40_45
| 8.1 (1.3) | 8.1 (1.3) | 8.0 (1.3) | 8.0 (1.3) |
age45_50
| 7.6 (1.3) | 7.7 (1.3) | 7.8 (1.3) | 7.9 (1.3) |
age50_55
| 7.1 (1.4) | 7.1 (1.4) | 7.2 (1.4) | 7.3 (1.4) |
age55_60
| 7.3 (1.7) | 7.1 (1.6) | 6.9 (1.5) | 6.9 (1.5) |
age60_65
| 5.4 (1.5) | 5.9 (1.6) | 6.4 (1.7) | 6.6 (1.7) |
age65_70
| 4.4 (1.4) | 4.5 (1.4) | 4.6 (1.4) | 4.7 (1.4) |
age70_75
| 3.6 (1.3) | 3.6 (1.3) | 3.7 (1.3) | 3.8 (1.3) |
age75_80
| 2.8 (1.3) | 2.9 (1.3) | 2.9 (1.3) | 3.0 (1.3) |
age80_85
| 2.0 (1.2) | 2.0 (1.2) | 2.0 (1.2) | 2.0 (1.2) |
age85_90
| 1.0 (0.9) | 1.0 (0.9) | 1.1 (0.9) | 1.2 (0.9) |
age90_95
| 0.4 (0.4) | 0.4 (0.4) | 0.4 (0.4) | 0.4 (0.4) |
age95
| 0.1 (0.1) | 0.1 (0.1) | 0.1 (0.2) | 0.1 (0.2) |
Men (%)
| 49.9 (1.8) | 49.9 (1.8) | 49.9 (1.8) | 49.9 (1.8) |
Mortality (per 1,000)
| 7.5 (5.8) | 7.4 (5.8) | 7.5 (5.6) | n/a |
Westerns (%)
| 7.7 (4.9) | 7.8 (4.9) | 7.8 (4.9) | 7.9 (4.9) |
Nonwesterns (%)
| 7.1 (10.6) | 7.1 (10.7) | 7.2 (10.8) | 7.4 (10.9) |
Urbanized
| 3.7 (1.4) | 3.6 (1.4) | 3.6 (1.4) | 3.6 (1.4) |
social assistance (per 1,000)
| 35.4 (37.5) | 32.3 (34.8) | 29.7 (32.7) | 28.9 (31.2) |
Lowincome (%)
| 40.5 (5.9) | 40.3 (5.8) | n/a | 40.2 (6.6) |
Highincome (%)
| 20.5 (7.5) | 20.7 (7.5) | n/a | 19.9 (7.8) |
Working (% of population 15–65)
| 71.3 (6.1) | 73.4 (5.9) | 74.3 (5.8) | n/a |
Selfemployed (% of working people)
| 9.2 (4.5) | 9.4 (4.5) | 9.5 (4.4) | n/a |
distGP (km)
| n/a | 1.3 (1.2) | 1.4 (1.2) | n/a |
av3GP (number of GP’s within 3 km)
| n/a | 7.0 (9.9) | 6.8 (9.8) | n/a |
distGPcentre (km)
| n/a | 7.3 (5.1) | 7.3 (5.1) | n/a |
av20hospital (number of hospitals within 20 km)
| n/a | 4.3 (4.1) | 4.4 (4.2) | n/a |
Treatment | Specialty | Average waiting time in weeks | |||
---|---|---|---|---|---|
\(2006\)
|
\(2007\)
|
\(2008\)
|
\(2009\)
| ||
Cataract | Ophthalmology | 6.6 (2.2) | 6.4 (2.4) | 6.1 (2.0) | 4.9 (2.3) |
Tonsillectomy | Otolaryngology | 5.0 (1.4) | 4.7 (1.3) | 4.2 (1.2) | 3.9(1.3) |
Hernia | Neurology | n/a | n/a | n/a | n/a |
Varicose veins | Dermatology | n/a | n/a | n/a | n/a |
Varicose veins | Surgery | 6.8 (2.2) | 6.2 (2.3) | 5.6 (2.4) | 4.4 (2.1) |
Inguinal hernia | Surgery | 4.6 (1.0) | 4.3 (1.2) | 4.6 (1.3) | 4.3 (1.4) |
Arthrosis (knee) | Orthopedics | 9.8 (3.6) | 8.3 (2.6) | 7.8 (1.9) | 6.7 (2.2) |
Arthrosis (hip) | Orthopedics | 8.3 (2.6) | 7.7 (2.0) | 7.3 (1.8) | 6.8 (2.2) |
Hip fracture | Surgery | n/a | n/a | n/a | n/a |
Physician data
Treatment | Specialty | Average % visited per zip code area | |||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
\(2006\)
|
\(2007\)
|
\(2008\)
|
\(2009\)
| ||||||||||||||
UH | GH | FFS | UN | UH | GH | FFS | UN | UH | GH | FFS | UN | UH | GH | FFS | UN | ||
Cataract | Ophthalmology | 6 | 6 | 77 | 12 | 5 | 4 | 77 | 14 | 5 | 5 | 73 | 17 | 5 | 6 | 71 | 18 |
Tonsillectomy | Otolaryngology | 4 | 5 | 84 | 7 | 4 | 5 | 79 | 11 | 4 | 4 | 78 | 14 | 4 | 4 | 80 | 12 |
Hernia | Neurology | 3 | 15 | 71 | 11 | 4 | 15 | 69 | 12 | 3 | 21 | 60 | 16 | 3 | 17 | 65 | 15 |
Varicose veins | Dermatology | 6 | 9 | 60 | 25 | 5 | 6 | 58 | 31 | 5 | 5 | 58 | 32 | 5 | 5 | 54 | 35 |
Varicose veins | Surgery | 3 | 5 | 67 | 25 | 2 | 5 | 61 | 32 | 2 | 5 | 58 | 35 | 1 | 4 | 59 | 35 |
Inguinal hernia | Surgery | 8 | 6 | 78 | 8 | 7 | 6 | 76 | 11 | 7 | 6 | 74 | 13 | 7 | 5 | 78 | 11 |
Arthrosis (knee) | Orthopedics | 4 | 6 | 77 | 13 | 4 | 5 | 75 | 15 | 3 | 5 | 74 | 17 | 3 | 5 | 76 | 16 |
Arthrosis (hip) | Orthopedics | 5 | 6 | 81 | 8 | 4 | 5 | 79 | 12 | 4 | 5 | 76 | 14 | 4 | 5 | 80 | 12 |
Hip fracture | Surgery | 6 | 7 | 80 | 8 | 6 | 5 | 78 | 11 | 5 | 5 | 76 | 14 | 6 | 4 | 79 | 11 |
Number of 2-digit areas (included in regression) | 78 | 78 | 84 | 86 |
Treatment | Specialty | UH standard deviation | GH standard deviation | FFS standard deviation | UN standard deviation | ||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Overall | Between | Within | Overall | Between | Within | Overall | Between | Within | Overall | Between | Within | ||
Cataract | Ophthalmology | 9.9 | 9.5 | 0.9 | 15.3 | 15.5 | 6.8 | 28.3 | 25.3 | 13.3 | 22.4 | 18.2 | 12.7 |
Tonsillectomy | Otolaryngology | 7.9 | 7.5 | 1.4 | 13.8 | 13.9 | 5.3 | 27.5 | 23.9 | 14.0 | 23.1 | 18.1 | 13.9 |
Hernia | Neurology | 9.7 | 9.2 | 1.0 | 28.0 | 27.7 | 9.8 | 34.6 | 31.9 | 14.5 | 22.5 | 17.8 | 13.4 |
Varicose veins | Dermatology | 8.4 | 8.0 | 1.9 | 15.3 | 13.7 | 6.9 | 31.3 | 27.9 | 14.6 | 28.9 | 25.0 | 14.5 |
Varicose veins | Surgery | 4.4 | 3.8 | 1.7 | 11.1 | 10.4 | 5.7 | 26.8 | 24.7 | 11.4 | 24.9 | 22.1 | 11.7 |
Inguinal hernia | Surgery | 9.6 | 9.1 | 1.6 | 14.1 | 14.1 | 6.7 | 26.0 | 22.6 | 13.5 | 21.2 | 16.6 | 12.8 |
Arthrosis (knee) | Orthopedics | 7.2 | 6.7 | 1.3 | 12.8 | 13.1 | 5.9 | 24.8 | 22.2 | 12.2 | 20.2 | 16.5 | 11.6 |
Arthrosis (hip) | Orthopedics | 8.6 | 8.1 | 1.3 | 12.9 | 13.7 | 5.6 | 25.7 | 23.0 | 12.7 | 21.5 | 17.1 | 12.6 |
Hip fracture | Surgery | 13.5 | 12.8 | 1.8 | 12.6 | 10.9 | 7.4 | 28.8 | 24.9 | 14.1 | 23.6 | 19.2 | 13.3 |
Methods
Estimation method
Economic effects
Results
Estimation results
\((1)\)
|
\((2)\)
|
\((3)\)
|
\((4)\)
| |
---|---|---|---|---|
OLS | OLS | RE | FE | |
Percentage_GH
| 0.047*** | 0.048*** | 0.270*** | |
(11.8) | (11.8) | (6.7) | ||
Percentage_FFS
| 0.060*** | 0.065*** | 0.294*** | |
(19.1) | (19.2) | (7.4) | ||
Percentage_UN
| 0.061*** | 0.066*** | 0.292*** | |
(17.4) | (17.9) | (7.4) | ||
Dummy 2007
| 0.701*** | 0.649*** | 0.648*** | 0.610*** |
(7.9) | (7.4) | (7.5) | (3.6) | |
Dummy 2008
| 1.447*** | 1.405*** | 1.452*** | 1.599*** |
(12.4) | (12.1) | (12.7) | (6.5) | |
Dummy 2009
| 0.403** | 0.408** | 0.531*** | 0.840** |
(3.2) | (3.3) | (4.3) | (2.9) | |
Age75_80
| 0.837 | 1.003* | 1.074* | 1.082 |
(1.8) | (2.1) | (2.3) | (1.6) | |
Age80_85
| 0.978* | 1.100* | 1.014* | 0.752 |
(2.0) | (2.3) | (2.1) | (1.1) | |
Men
| 0.016 |
\(-\)0.024 |
\(-\)0.020 | 0.019 |
(0.3) | (\(-\)0.4) | (\(-\)0.3) | (0.1) | |
Mortality
|
\(-\)0.026 |
\(-\)0.029* |
\(-\)0.019 | 0.002 |
(\(-\)1.5) | (\(-\)1.7) | (\(-\)1.2) | (0.1) | |
Westerns
|
\(-\)0.072*** |
\(-\)0.042*** |
\(-\)0.039** | 0.042 |
(\(-\)5.3) | (\(-\)3.4) | (\(-\)3.2) | (0.5) | |
Nonwesterns
| 0.026*** | 0.027*** | 0.026** |
\(-\)0.142 |
(3.1) | (3.3) | (3.2) | (\(-\)1.6) | |
Urban1
| 0.188 | 0.009 | 0.090 | 0.312 |
(0.8) | (0.0) | (0.4) | (0.3) | |
Urban2
| 0.492* | 0.320 | 0.339 | 0.141 |
(2.3) | (1.7) | (1.7) | (0.1) | |
Urban3
| 0.344* | 0.228 | 0.206 |
\(-\)0.310 |
(2.4) | (1.6) | (1.5) | (\(-\)0.9) | |
Assistance
| 0.001 |
\(-\)0.001 |
\(-\)0.002 | 0.006 |
(0.2) | (\(-\)0.3) | (\(-\)0.6) | (0.7) | |
Working
| 0.002 |
\(-\)0.010 |
\(-\)0.010 | 0.016 |
(0.2) | (\(-\)0.7) | (\(-\)0.7) | (0.3) | |
Selfemployed
|
\(-\)0.026 |
\(-\)0.017 |
\(-\)0.015 |
\(-\)0.168 |
(\(-\)1.5) | (\(-\)1.0) | (\(-\)0.9) | (\(-\)1.7) | |
Lowincome
|
\(-\)0.016 |
\(-\)0.020 |
\(-\)0.017 |
\(-\)0.016 |
(\(-\)0.8) | (\(-\)1.1) | (\(-\)1.0) | (\(-\)0.6) | |
Highincome
|
\(-\)0.002 |
\(-\)0.011 |
\(-\)0.012 |
\(-\)0.049 |
(\(-\)0.2) | (\(-\)0.9) | (\(-\)1.1) | (\(-\)1.6) | |
Waitingtime
|
\(-\)0.096*** |
\(-\)0.063** | 0.001 | 0.072** |
(\(-\)4.7) | (\(-\)3.1) | (0.1) | (3.0) | |
distGP
|
\(-\)0.127** |
\(-\)0.140** |
\(-\)0.144** | 0.614 |
(\(-\)2.6) | (\(-\)2.9) | (\(-\)2.9) | (1.4) | |
av3GP
|
\(-\)0.008 | 0.001 | 0.004 | 0.001 |
(\(-\)0.5) | (0.1) | (0.3) | (0.0) | |
distGPcentre
|
\(-\)0.024* |
\(-\)0.026* |
\(-\)0.027* |
\(-\)0.115 |
(\(-\)2.1) | (\(-\)2.3) | (\(-\)2.4) | (\(-\)0.5) | |
av20hospital
|
\(-\)0.025* |
\(-\)0.030* |
\(-\)0.031* |
\(-\)0.578** |
(\(-\)1.8) | (\(-\)2.1) | (\(-\)2.2) | (\(-\)2.9) | |
Constant
\(^\mathrm{a}\)
| 3.564 |
\(-\)14.210 |
\(-\)18.190 |
\(-\)48.520 |
(0.1) | (\(-\)0.3) | (\(-\)0.4) | (\(-\)0.8) | |
Number of observations | 11,036 | 11,036 | 11,036 | 11,036 |
Number of groups | 13,061 | 13,061 | ||
\(\hbox {R}^{2}\)
| 0.466 | 0.482 | ||
\(\hbox {R}^{2}\) within | 0.083 | 0.101 | ||
\(\hbox {R}^{2}\) between | 0.642 | 0.187 | ||
\(\hbox {R}^{2}\) overall | 0.480 | 0.149 |
Cataract | Tonsillectomy | Hernia | Varicose veins (dermatology) | Varicose veins (surgery) | Inguinal hernia | Arthrosis (knee) | Arthrosis (hip) | Hip fracture | |
---|---|---|---|---|---|---|---|---|---|
percentage_GH
| 0.047*** | 0.010*** | 0.022*** |
\(-\)0.018*** | 0.028*** |
\(-\)0.001 | 0.023*** | 0.006*** |
\(-\)0.002*** |
(11.8) | (3.9) | (12.6) | (\(-\)3.6) | (7.0) | (\(-\)0.6) | (10.9) | (3.7) | (\(-\)2.7) | |
percentage_FFS
| 0.060*** | 0.017*** | 0.029*** |
\(-\)0.002 | 0.029*** | 0.002 | 0.020*** | 0.006*** |
\(-\)0.001 |
(19.1) | (7.4) | (18.0) | (\(-\)0.4) | (7.7) | (1.5) | (10.5) | (4.0) | (\(-\)1.4) | |
percentage_UN
| 0.061*** | 0.019*** | 0.029*** | 0.011* | 0.035*** | 0.001 | 0.021*** | 0.007*** |
\(-\)0.000 |
(17.4) | (7.4) | (16.8) | (2.3) | (8.8) | (0.9) | (10.4) | (4.6) | (\(-\)0.5) | |
Year dummies | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
Controls | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
Constant | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
Number of observations | 11,036 | 11,036 | 11,036 | 11,036 | 11,036 | 11,036 | 11,036 | 11,036 | 11,036 |
\(\hbox {R}^{2}\)
| 0.482 | 0.221 | 0.076 | 0.126 | 0.102 | 0.053 | 0.110 | 0.170 | 0.345 |
Cataract | Tonsillectomy | Hernia | Varicose veins (dermatology) | Varicose veins (surgery) | Inguinal hernia | Arthrosis (knee) | Arthrosis (hip) | Hip fracture | |
---|---|---|---|---|---|---|---|---|---|
percentage_GH
| 0.048*** | 0.011*** | 0.023*** | 0.020*** | 0.023*** |
\(-\)0.001 | 0.019*** | 0.006*** |
\(-\)0.002 |
(11.8) | (4.3) | (12.5) | (3.5) | (6.2) | (\(-\)0.5) | (8.4) | (3.9) | (\(-\)2.1) | |
percentage_FFS
| 0.065*** | 0.019*** | 0.030*** | 0.026*** | 0.024*** | 0.002 | 0.021*** | 0.006*** |
\(-\)0.000 |
(19.2) | (8.6) | (17.3) | (4.7) | (6.8) | (1.7) | (10.6) | (4.1) | (\(-\)0.8) | |
percentage_UN
| 0.066*** | 0.022*** | 0.029*** | 0.037*** | 0.029*** | 0.002 | 0.021*** | 0.007*** | 0.000 |
(17.9) | (8.9) | (16.2) | (6.7) | (7.8) | (1.4) | (10.2) | (4.7) | (0.1) | |
Year dummies | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
Controls | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
Constant | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
Number of observations | 11,036 | 11,036 | 11,036 | 11,036 | 11,036 | 11,036 | 11,036 | 11,036 | 11,036 |
Number of groups | 3,061 | 3,061 | 3,061 | 3,061 | 3,061 | 3,061 | 3,061 | 3,061 | 3,061 |
\(\hbox {R}^{2}\) within | 0.083 | 0.045 | 0.014 | 0.122 | 0.036 | 0.014 | 0.017 | 0.006 | 0.002 |
\(\hbox {R}^{2}\) between | 0.642 | 0.352 | 0.122 | 0.118 | 0.160 | 0.108 | 0.172 | 0.362 | 0.432 |
\(\hbox {R}^{2}\) overall | 0.480 | 0.220 | 0.075 | 0.112 | 0.100 | 0.052 | 0.105 | 0.170 | 0.330 |
Cataract | Tonsillectomy | Hernia | Varicose veins (dermatology) | Varicose veins (surgery) | Inguinal hernia | Arthrosis (knee) | Arthrosis (hip) | Hip fracture | |
---|---|---|---|---|---|---|---|---|---|
percentage_GH
| 0.270*** | 0.043*** | 0.039** | 0.117*** | 0.006 | 0.027*** | 0.023* | 0.027*** | 0.001 |
(6.7) | (4.2) | (2.7) | (8.5) | (0.7) | (3.5) | (2.5) | (3.5) | (0.2) | |
percentage_FFS
| 0.294*** | 0.058*** | 0.044** | 0.114*** | 0.010 | 0.030*** | 0.039*** | 0.028*** | 0.002 |
(7.4) | (5.8) | (3.1) | (8.4) | (1.1) | (3.9) | (4.5) | (3.6) | (0.6) | |
percentage_UN
| 0.292*** | 0.060*** | 0.044** | 0.121*** | 0.010 | 0.031*** | 0.036*** | 0.029*** | 0.002 |
(7.4) | (6.6) | (3.1) | (9.00) | (1.04) | (4.0) | (4.0) | (3.8) | (0.8) | |
year dummies
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
controls
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
constant
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
Number of observations | 11,036 | 11,036 | 11,036 | 11,036 | 11,036 | 11,036 | 11,036 | 11,036 | 11,036 |
Number of groups | 3,061 | 3,061 | 3,061 | 3,061 | 3,061 | 3,061 | 3,061 | 3,061 | 3,061 |
\(\hbox {R}^{2}\) within | 0.101 | 0.055 | 0.022 | 0.144 | 0.047 | 0.024 | 0.032 | 0.018 | 0.011 |
\(\hbox {R}^{2}\) between | 0.187 | 0.095 | 0.003 | 0.012 | 0.020 | 0.016 | 0.018 | 0.020 | 0.000 |
\(\hbox {R}^{2}\) overall | 0.149 | 0.065 | 0.000 | 0.018 | 0.014 | 0.011 | 0.014 | 0.011 | 0.001 |
Economic importance
Treatment | Specialty |
\(\eta _{{\textit{FFS}}-{\textit{UH}}}\)
|
\(\eta _{{\textit{FFS}}-{\textit{GH}}}\)
|
\(\eta _{{\textit{FFS}}-{\textit{UN}}}\)
| ||||||
---|---|---|---|---|---|---|---|---|---|---|
\((1)\)
|
\((2)\)
|
\((3)\)
|
\((4)\)
|
\((5)\)
|
\((6)\)
|
\((7)\)
|
\((8)\)
|
\((9)\)
| ||
OLS | RE | FE | OLS | RE | FE | OLS | RE | FE | ||
Dependent variable: 4-digit treatment density (N=11,036)
| ||||||||||
Cataract | Ophthalmology | 0.70*** | 0.75*** | 3.41*** | 0.15*** | 0.19*** | 0.27*** |
\(-\)0.01 |
\(-\)0.01 | 0.01 |
Tonsillectomy | Otolaryngology | 0.50*** | 0.56*** | 1.67*** | 0.20*** | 0.24*** | 0.42*** |
\(-\)0.06* |
\(-\)0.07** |
\(-\)0.07* |
Hernia | Neurology | 0.98*** | 1.01*** | 1.48** | 0.24*** | 0.22*** | 0.17** | 0.01 | 0.02 | 0.00 |
Varicose veins | Dermatology |
\(-\)0.07 | 0.88*** | 3.90*** | 0.55*** | 0.21*** |
\(-\)0.11 |
\(-\)0.46*** |
\(-\)0.38*** |
\(-\)0.26*** |
Varicose veins | Surgery | 1.52*** | 1.24*** | 0.52 | 0.07 | 0.07 | 0.19 |
\(-\)0.31*** |
\(-\)0.23*** | 0.03 |
Inguinal hernia | Surgery | 0.10 | 0.12 | 1.61*** | 0.15** | 0.16** | 0.15 | 0.03 | 0.02 |
\(-\)0.04 |
Arthrosis (knee) | Orthopedics | 1.00*** | 1.07*** | 1.96*** |
\(-\)0.19** | 0.09 | 0.81*** |
\(-\)0.07 |
\(-\)0.01 | 0.11* |
Arthrosis (hip) | Orthopedics | 0.42*** | 0.43*** | 2.04*** |
\(-\)0.03 |
\(-\)0.02 | 0.05 |
\(-\)0.07* |
\(-\)0.07* |
\(-\)0.05 |
Hip fracture | Surgery |
\(-\)0.14 |
\(-\)0.07 | 0.31 | 0.24* | 0.23* | 0.18 |
\(-\)0.09 |
\(-\)0.08 |
\(-\)0.08 |
Robustness checks
Excluding border areas
Treatment | Specialty |
\(\eta _{{\textit{FFS}}-{\textit{UH}}}\)
|
\(\eta _{{\textit{FFS}}-{\textit{GH}}}\)
|
\(\eta _{{\textit{FFS}}-{\textit{UN}}}\)
| ||||||
---|---|---|---|---|---|---|---|---|---|---|
\((1)\)
|
\((2)\)
|
\((3)\)
|
\((4)\)
|
\((5)\)
|
\((6)\)
|
\((7)\)
|
\((8)\)
|
\((9)\)
| ||
OLS | RE | FE | OLS | RE | FE | OLS | RE | FE | ||
Dependent variable: 4-digit treatment density (N=7,926)
| ||||||||||
Cataract | Ophthalmology | 1.03*** | 1.06*** | 2.41*** | 0.16*** | 0.18*** | 0.23** |
\(-\)0.06 |
\(-\)0.03 | 0.06 |
Tonsillectomy | Otolaryngology | 0.39*** | 0.50*** | 1.98*** | 0.20*** | 0.23*** | 0.38** |
\(-\)0.05 |
\(-\)0.02 | 0.03 |
Hernia | Neurology | 2.09*** | 2.23*** | 2.93*** | 0.16*** | 0.14*** | 0.09 | 0.03 | 0.06 | 0.07 |
Varicose veins | Dermatology | 0.65*** | 1.47*** | 3.84*** | 0.32*** | 0.01 |
\(-\)0.09 |
\(-\)0.68*** |
\(-\)0.49*** |
\(-\)0.32*** |
Varicose veins | Surgery | 2.36*** | 1.86*** | 0.31 | 0.00 | 0.01 | 0.15 |
\(-\)0.49*** |
\(-\)0.37*** | 0.01 |
Inguinal hernia | Surgery | 0.37** | 0.42** | 1.28** | 0.10* | 0.12** | 0.18 | 0.11** | 0.10* | 0.05 |
Arthrosis (knee) | Orthopedics | 1.56*** | 1.64*** | 1.62** |
\(-\)0.30*** |
\(-\)0.02 | 0.85*** |
\(-\)0.06 | 0.00 | 0.08 |
Arthrosis (hip) | Orthopedics | 0.71** | 0.75** | 1.22 |
\(-\)0.09 |
\(-\)0.09 |
\(-\)0.10 |
\(-\)0.07 |
\(-\)0.06 | 0.02 |
Hip fracture | Surgery | 0.29 | 0.24 | 0.11 | 0.29** | 0.27* | 0.18 |
\(-\)0.05 |
\(-\)0.01 |
\(-\)0.03 |
Low within variation for university hospitals
Treatment | Specialty |
\(\eta _{{\textit{FFS}}-({\textit{GH}}+{\textit{UH}})}\)
|
\(\eta _{{\textit{FFS}}-{\textit{UN}}}\)
| ||||
---|---|---|---|---|---|---|---|
\((1)\)
|
\((2)\)
|
\((3)\)
|
\((4)\)
|
\((5)\)
|
\((6)\)
| ||
OLS | RE | FE | OLS | RE | FE | ||
Cataract | Ophthalmology | 0.32*** | 0.33*** | 0.40*** | 0.00 | 0.00 | 0.01 |
Tonsillectomy | Otolaryngology | 0.28*** | 0.31*** | 0.51*** |
\(-\)0.05* |
\(-\)0.06** |
\(-\)0.08* |
Hernia | Neurology | 0.31*** | 0.28*** | 0.18** | 0.02 | 0.03 | 0.00 |
Varicose veins | Dermatology | 0.41*** | 0.31*** | 0.21** |
\(-\)0.45*** |
\(-\)0.38*** |
\(-\)0.28*** |
Varicose veins | Surgery | 0.29*** | 0.21*** | 0.21 |
\(-\)0.27*** |
\(-\)0.21*** | 0.02 |
Inguinal hernia | Surgery | 0.13*** | 0.14*** | 0.24** | 0.03 | 0.02 |
\(-\)0.06 |
Arthrosis (knee) | Orthopedics | 0.12* | 0.28*** | 0.87*** |
\(-\)0.05 | 0.01 | 0.11* |
Arthrosis (hip) | Orthopedics | 0.12* | 0.11* | 0.17 |
\(-\)0.07* |
\(-\)0.07* |
\(-\)0.06 |
Hip fracture | Surgery | 0.04 | 0.13 | 0.19 |
\(-\)0.09 |
\(-\)0.08 |
\(-\)0.08 |