|
 The impact of waiting time on health gains from surgery: Evidence from a national patient reported outcomes dataset Running titleTable 2: Regression of waiting times on time-invariant and time-defined variables
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| səhifə | 5/6 | | tarix | 06.10.2018 | | ölçüsü | 116,56 Kb. | | #72571 |
| Table 2: Regression of waiting times on time-invariant and time-defined variables
|
|
|
|
|
|
Hip
|
Knee
|
VV
|
Hernia
|
Female
|
0.0998
|
0.1445*
|
0.1843
|
-0.1780
|
Age
|
0.2631*
|
0.0952
|
-0.0139
|
0.0950
|
Age2
|
-0.0046*
|
-0.0020
|
0.0009
|
-0.0014
|
Age3
|
0.0000*
|
0.0000
|
-0.0000
|
0.0000
|
|
|
|
|
|
Living arrangements
|
|
|
|
|
Alone
|
0.1068
|
-0.1222
|
0.5449**
|
0.1056
|
Nursing home, hospital
|
-0.2128
|
0.6366
|
-0.6834
|
0.5968
|
Other
|
0.0157
|
-0.6633
|
-0.3449
|
-0.7862
|
|
|
|
|
|
Length of symptoms
|
|
|
|
|
1–5 years
|
0.9801***
|
0.8681***
|
0.4345
|
0.8773***
|
6-10 years
|
1.1775***
|
0.9372***
|
0.4153
|
-
|
>10 years
|
1.5096***
|
0.9566***
|
0.4643
|
-
|
|
|
|
|
|
Previous surgery
|
0.2577
|
0.0567
|
0.4125**
|
-0.4711***
|
Heart disease
|
0.1943
|
0.3845***
|
0.2241
|
0.3960**
|
High blood pressure
|
0.0576
|
-0.0288
|
0.0607
|
0.1661*
|
Stroke
|
0.2043
|
0.5688*
|
-0.0877
|
-0.431
|
Circulation
|
0.0722
|
0.2388
|
0.0075
|
0.3229
|
Lung disease
|
0.3220*
|
0.2336
|
0.1482
|
0.2662
|
Diabetes
|
0.0409
|
0.0861
|
-0.2521
|
-0.2478
|
Kidney disease
|
0.0944
|
0.5398*
|
0.0779
|
0.0758
|
Nervous system
|
-0.2970
|
0.4292
|
-0.8330
|
-0.6197
|
Liver disease
|
1.5669*
|
-0.3542
|
-0.0065
|
0.4842
|
Cancer
|
-0.0884
|
-0.1140
|
0.0354
|
0.0291
|
Depression
|
-0.0942
|
-0.3127*
|
-0.4722
|
-0.1458
|
Arthritis
|
0.1635*
|
-0.0694
|
-0.2723
|
-0.0552
|
No disability
|
0.1808*
|
-0.0018
|
0.2896
|
-0.0418
|
|
|
|
|
|
Income deprivation
|
1.7469*
|
1.2099
|
-1.0849
|
-0.8851
|
Education deprivation
|
-0.0065
|
-0.0077
|
-0.0034
|
0.0033
|
|
|
|
|
|
N
|
22687
|
24842
|
8525
|
21422
|
Adjusted R2
|
0.2461
|
0.2415
|
0.1635
|
0.1874
|
Notes: *** p<0.001, ** p<0.01, * p<0.05.
Table 3: Coefficients on waiting times from the OLS regression of post-surgery health outcomes
|
Hip Replacement
|
Knee Replacement
|
Varicose Veins
|
Hernia repair
|
EQ-5D index
|
-0.0620**
|
-0.0587**
|
0.0247
|
0.0066
|
EQ-VAS
|
-0.0488*
|
-0.0646**
|
-0.0074
|
0.0160
|
Oxford Hip Score
|
-0.0951***
|
|
|
|
Oxford Knee Score
|
|
-0.0385***
|
|
|
Aberdeen Varicose Vein Score
|
|
|
0.0195
|
|
Notes: *** p<0.001, ** p<0.01, * p<0.05. To obtain coefficients on similar scales across measures, we have multiplied the EQ-5D index scores by 100 and rescaled the disease-specific scores to run from zero (worst state) to 100 (best state).
Table 4: Coefficients on other covariates from the OLS regression of post-surgery health outcomes
|
Hip
|
Knee
|
VV
|
Hernia
|
|
EQ-5D index
|
EQ-VAS
|
OHS
|
EQ-5D index
|
EQ-VAS
|
OKS
|
EQ-5D index
|
EQ-VAS
|
VV
|
EQ-5D index
|
EQ-VAS
|
|
|
|
|
|
|
|
|
|
|
|
|
Female
|
-1.0790***
|
-0.4004
|
-1.8662***
|
-0.0671
|
-0.7093**
|
-0.2795*
|
-1.0980***
|
-0.1128
|
1.3274***
|
-0.6703*
|
0.2449
|
Age
|
-0.4843
|
-0.4222
|
0.1268
|
-0.8070
|
-2.0144*
|
-0.1536
|
-0.1661
|
-0.1474
|
-0.0332
|
-0.7191***
|
-0.3421*
|
Age2
|
0.0113
|
0.0090
|
0.0011
|
0.0216
|
0.0392**
|
0.0071
|
0.0049
|
0.0033
|
-0.0000
|
0.0147***
|
0.0067*
|
Age3
|
-0.0001*
|
-0.0001
|
-0.0000
|
-0.0001*
|
-0.0002**
|
-0.0001
|
-0.0000
|
-0.0000
|
0.0000
|
-0.0001***
|
-0.0000*
|
EQ-VAS
|
|
0.0950***
|
|
|
0.1447***
|
|
0.2217***
|
|
0.2816***
|
|
Oxford Hip Score
|
|
|
0.1807***
|
|
|
|
|
|
|
|
|
Oxford Knee Score
|
|
|
|
|
|
0.2969***
|
|
|
|
|
Aberdeen VV score
|
|
|
|
|
|
|
|
|
0.4870***
|
|
General health
|
.
|
.
|
.
|
|
|
|
|
|
|
|
|
very good
|
-1.7047***
|
-4.5459***
|
-1.9914***
|
-1.1656*
|
-2.8331***
|
-1.0581**
|
-0.5559
|
-3.9449***
|
0.8147**
|
-1.0967***
|
-4.3883***
|
good
|
-3.6377***
|
-9.2819***
|
-4.7255***
|
-3.0325***
|
-8.0839***
|
-2.3696***
|
-1.9164***
|
-9.7232***
|
1.4360***
|
-2.6058***
|
-9.3961***
|
fair
|
-7.6658***
|
-16.7913***
|
-9.3636***
|
-6.8585***
|
-14.6396***
|
-4.2612***
|
-4.7753***
|
-17.2299***
|
3.1715***
|
-6.8305***
|
-17.5233***
|
poor
|
-11.2090***
|
-20.8920***
|
-11.5743***
|
-11.4897***
|
-20.5751***
|
-6.0205***
|
-7.3973***
|
-21.9318***
|
4.1051**
|
-13.8488***
|
-24.6808***
|
Self –care
|
.
|
.
|
.
|
|
|
|
|
|
|
|
|
some problems
|
-2.8991***
|
-1.2410***
|
-2.1828***
|
-5.5492***
|
-3.9094***
|
-2.2372***
|
-11.5141***
|
-5.9064***
|
1.4455
|
-8.5704***
|
-3.0043***
|
unable
|
-11.8124***
|
-3.5864*
|
-9.5033***
|
-12.4958***
|
-2.7844
|
-2.3080*
|
-18.8072
|
-5.5422
|
-1.1559
|
-8.2578
|
-1.0554
|
Mobility
|
.
|
.
|
.
|
.
|
.
|
.
|
.
|
.
|
.
|
.
|
.
|
some problems
|
-0.0509
|
-0.2474
|
1.4544**
|
-0.2070
|
0.0672
|
0.6287**
|
-3.8612***
|
-1.7223***
|
-0.0359
|
-2.4967***
|
-1.0969***
|
unable
|
0.6358
|
0.5046
|
-0.3975
|
-9.3029**
|
-5.6524*
|
-0.3554
|
2.8927
|
6.8707*
|
0.3750
|
-2.1768
|
-5.0428
|
Pain/discomfort
|
.
|
.
|
.
|
.
|
.
|
.
|
.
|
.
|
.
|
.
|
.
|
moderate
|
-0.0527
|
2.4696*
|
0.8403
|
-0.8047
|
2.2959*
|
0.8276
|
-4.8668***
|
0.2425
|
-0.2562
|
-0.7998
|
0.0353
|
extreme
|
-2.0830
|
1.1747
|
0.5962
|
-4.5570*
|
0.9753
|
1.0966*
|
-19.1383***
|
-0.8965
|
2.0420**
|
-1.9628
|
-0.3405
|
Anxiety/depression
|
.
|
.
|
.
|
.
|
.
|
.
|
.
|
.
|
.
|
.
|
.
|
moderate
|
-2.2654***
|
-1.4132***
|
-1.4509***
|
-2.8156***
|
-1.4610***
|
-0.8812***
|
-3.5697***
|
-1.5956***
|
0.4315
|
-1.9219***
|
-1.1615***
|
extreme
|
-5.7290***
|
-2.1768**
|
-3.7324***
|
-7.4718***
|
-3.1475***
|
-2.4034***
|
-11.5914**
|
-2.9553
|
-0.4369
|
-5.3244*
|
-2.4446
|
Usual activity
|
.
|
.
|
.
|
.
|
.
|
.
|
.
|
.
|
.
|
.
|
.
|
some
|
-0.2599
|
0.0971
|
1.6382**
|
-1.4717***
|
-0.6914
|
0.2428
|
-1.5877**
|
0.0684
|
-0.4504
|
-0.6823*
|
0.2168
|
unable
|
-3.6047***
|
-1.5463*
|
-0.2624
|
-5.9390***
|
-3.4210***
|
-0.6865*
|
-9.0721**
|
-0.2693
|
-1.3554
|
-1.8386
|
0.2434
|
Living arrangements
|
.
|
.
|
.
|
|
|
|
|
|
|
|
|
alone
|
0.2695
|
0.1425
|
-0.2541
|
-0.1432
|
-0.2866
|
-0.0929
|
-1.5314***
|
-0.9561*
|
0.8480**
|
-0.8041***
|
-0.9145***
|
nursing home, hospital
|
-1.7616
|
-4.5917
|
-4.1824
|
-5.8958
|
-1.2162
|
-2.5328
|
-3.9739*
|
-2.6378
|
6.0044***
|
-1.3302
|
-6.0960
|
other
|
-1.9509
|
-0.7780
|
-1.6955
|
-2.9014
|
-1.5336
|
-1.0979
|
-1.1249
|
-1.3953
|
0.5200
|
1.1698
|
1.6526
|
Length of symptoms
|
.
|
.
|
.
|
|
|
|
|
|
|
|
|
1–5 years
|
0.2611
|
0.2081
|
-0.2173
|
-0.6751
|
-0.2820
|
-0.4308
|
-0.7615
|
0.0425
|
-1.3450
|
0.0120
|
-0.2330
|
6-10 years
|
-1.6393
|
-4.5116
|
-3.8878
|
-0.3031
|
-0.1035
|
0.1295
|
-1.0049
|
0.0959
|
-1.2456
|
.
|
.
|
>10 years
|
-0.9720
|
-0.3562
|
-1.3470
|
-0.6071
|
-0.5194
|
-0.0766
|
-1.8384*
|
-0.4729
|
-0.7383
|
.
|
.
|
Previous surgery
|
-5.1801***
|
-3.5853***
|
-9.2586***
|
-4.7056***
|
-3.6072***
|
-4.0602***
|
-1.3014***
|
-0.8161*
|
2.2459***
|
0.5619*
|
0.6512*
|
Heart disease
|
-0.7627*
|
-1.7502***
|
-0.8444
|
-0.9832**
|
-2.0632***
|
-0.3960
|
0.9241
|
0.2430
|
-0.4865
|
-0.3968
|
-1.9350***
|
High blood pressure
|
0.5138*
|
0.0342
|
0.6560*
|
0.1304
|
0.1463
|
0.2941*
|
-0.4286
|
-0.6640
|
0.0797
|
0.1837
|
0.0802
|
Stroke
|
-1.3142
|
-1.7101
|
-1.4793
|
-1.6562
|
-1.9591*
|
-0.3362
|
-4.1775
|
0.5439
|
0.5970
|
0.0580
|
-0.3332
|
Circulation
|
-2.5214***
|
-2.4393***
|
-4.6156***
|
-2.1607***
|
-1.7477***
|
-2.1391***
|
-1.2984**
|
-1.6178**
|
1.1457***
|
-2.4431***
|
-1.5866**
|
Lung disease
|
-0.4224
|
-2.4676***
|
-0.3402
|
-0.4306
|
-2.0936***
|
-0.0056
|
0.2160
|
-2.0730*
|
0.7421
|
0.7003*
|
-1.9447***
|
Diabetes
|
-1.0519**
|
-1.4972***
|
-1.5615***
|
-0.5554
|
-0.5281
|
-0.7396***
|
-0.6908
|
0.0570
|
0.2810
|
0.4909
|
-0.9271*
|
Kidney disease
|
-0.2341
|
-0.7321
|
0.5737
|
1.8987*
|
-0.8442
|
1.3903**
|
-1.2518
|
-3.6375
|
-1.3452
|
-0.9015
|
0.9835
|
Nervous system
|
-2.1917
|
-4.1839**
|
-2.3885
|
-4.5652***
|
-7.3052***
|
-0.9638
|
3.3122
|
-1.8991
|
0.5892
|
-3.0584**
|
-3.9723**
|
Liver disease
|
-4.5361*
|
-4.3283*
|
-4.3735
|
-1.1691
|
-2.7816
|
-1.7162*
|
6.2649**
|
5.4478
|
-0.1883
|
1.5406
|
1.2524
|
Cancer
|
-0.2258
|
-1.4442*
|
0.7376
|
-0.1197
|
-1.2961*
|
-0.1559
|
-2.0808*
|
-1.4772
|
0.9915
|
0.2047
|
-1.4811**
|
Depression
|
-6.4887***
|
-4.7375***
|
-4.0938***
|
-4.8615***
|
-2.7926***
|
-0.8871***
|
-3.1017***
|
-0.9850
|
0.3175
|
-4.5456***
|
-2.2052***
|
Arthritis
|
-1.1247***
|
-1.2533***
|
-0.5938*
|
-0.3423
|
-0.3281
|
0.1667
|
-1.8340***
|
-1.7286***
|
-0.6260*
|
-2.5575***
|
-1.4169***
|
|
|
|
|
|
|
|
|
|
|
|
|
Income deprivation
|
-6.1645*
|
-5.4363
|
-6.7787*
|
-2.8592
|
-4.0242
|
-3.6618**
|
-2.8272
|
-5.4252
|
1.1884
|
-5.6321**
|
-6.3056**
|
Education deprivation
|
-0.0209
|
-0.0103
|
-0.0498**
|
-0.0363**
|
-0.0139
|
-0.0208**
|
0.0002
|
0.0156
|
-0.0058
|
0.0115
|
0.0210
|
|
|
|
|
|
|
|
|
|
|
|
|
N
|
18842
|
18719
|
19783
|
20504
|
20428
|
21260
|
7253
|
7332
|
7395
|
18413
|
18571
|
Adjusted R2
|
0.2473
|
0.2710
|
0.2522
|
0.2742
|
0.3196
|
0.2727
|
0.3826
|
0.4068
|
0.3771
|
0.3440
|
0.4398
|
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