Appendix D

Regression Model Specifications with “Clusters” of Predictors

Cluster 1: Partial-year enrollment (PYE), year, pharmacy benefit, age, sex, age–sex interaction (all subcontractors)

Cluster 2: Health status (All subcontractors) – BASELINE MODEL

a) PYE, year, pharmacy benefit, age, sex, age–sex interaction

b) Health status

Cluster 3: Race (All subcontractors)

a) PYE, year, pharmacy benefit, age, sex, age–sex interaction

b) Race

Cluster 4: Income (All subcontractors)

a) PYE, year, pharmacy benefit, age, sex, age–sex interaction

b) Income

Cluster 5: All common beneficiary independent variables (all subcontractors)

a) PYE, year, pharmacy benefit, age, sex, age–sex interaction

b) Health status

c) Race

d) Income



The National Academies | 500 Fifth St. N.W. | Washington, D.C. 20001
Copyright © National Academy of Sciences. All rights reserved.
Terms of Use and Privacy Statement



Below are the first 10 and last 10 pages of uncorrected machine-read text (when available) of this chapter, followed by the top 30 algorithmically extracted key phrases from the chapter as a whole.
Intended to provide our own search engines and external engines with highly rich, chapter-representative searchable text on the opening pages of each chapter. Because it is UNCORRECTED material, please consider the following text as a useful but insufficient proxy for the authoritative book pages.

Do not use for reproduction, copying, pasting, or reading; exclusively for search engines.

OCR for page 137
Appendix D Regression Model Specifications with “Clusters” of Predictors Cluster 1: Partial-year enrollment (PYE), year, pharmacy benefit, age, sex, age–sex interaction (all subcontractors) Cluster 2: Health status (All subcontractors) – BASELINE MODEL a) PYE, year, pharmacy benefit, age, sex, age–sex interaction b) Health status Cluster 3: Race (All subcontractors) a) PYE, year, pharmacy benefit, age, sex, age–sex interaction b) Race Cluster 4: Income (All subcontractors) a) PYE, year, pharmacy benefit, age, sex, age–sex interaction b) Income Cluster 5: All common beneficiary independent variables (all subcontractors) a) PYE, year, pharmacy benefit, age, sex, age–sex interaction b) Health status c) Race d) Income 137

OCR for page 137
138 VARIATION IN HEALTH CARE SPENDING Cluster 6: Employer/insurance (Lewin and Harvard only) a) PYE, year, pharmacy benefit, age, sex, age–sex interaction b) Benefit generosity and payer/plan type (Harvard and Lewin only) c) Data source (Harvard only) d) Plan size (Lewin only) Cluster 7: Market (all subcontractors) a) PYE, year, pharmacy benefit, age, sex, age–sex interaction b) Access to care, payer mix, hospital competition, supply of medical services, % population uninsured, malpractice environmental risk (all) c) Physician competition (Harvard and Acumen) d) Health professional mix (Lewin and Acumen) e) Percentage of Medicare beneficiaries with supplemental insurance f) MA/Medicaid penetration (Acumen only) Cluster 8: Kitchen sink variables (Subcontractors included all independent variables) All subcontractors a) PYE, year, pharmacy benefit, age, sex, age–sex interaction b) Race c) Income d) Health status and comorbidity adjuster e) Access to care f) Payer mix g) Hospital competition h) Supply of medical services i) % population uninsured j) Malpractice environment risk Harvard additionally adjusted for: · Health behavior · Data source · Payer/plan type · Benefit generosity · Physician composition Acumen additionally adjusted for: · Medicare and Medicaid dual eligibility status · Supplemental Medicare insurance · Fee-for-service or Medicare Advantage · Part D enrollment

OCR for page 137
APPENDIX D 139 · Percentage of Medicare beneficiaries with supplemental insurance · MA/Medicaid penetration · Physician composition · Health professional mix Lewin additionally adjusted for: · Payer/plan type · Benefit generosity · Plan size · Health professional mix Cluster 9: All common independent variables only (all subcontractors) a) PYE, year, pharmacy benefit, age, sex, age–sex interaction b) Race c) Income d) Health status and comorbidity adjuster e) Access to care f) Payer mix g) Hospital competition h) Supply of medical services i) % population uninsured j) Malpractice environment risk Cluster 10: Cluster 1 and Medicare only IVs (Acumen only) a) PYE, year, pharmacy benefit, age, sex, age–sex interaction b) Medicare and Medicaid dual eligibility status c) Supplemental Medicare insurance d) Part D enrollment e) Fee for service or Medicare Advantage

OCR for page 137