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. Author manuscript; available in PMC: 2015 Jan 4.
Published in final edited form as: Health Econ. 2013 Apr 25;22(9):1052–1070. doi: 10.1002/hec.2927

Table IV.

Conditional quantile regression results for MPR (adherence)

Q10 Q20 Q30 Q40 Q50 Q60 Q70
Age 0.24 0.28 0.29 0.24 0.11 0.07 0.03
Male −0.92 0.45 1.13 0.15 −1.19 −0.87 −0.44
Northeast (ref: west) −2.67 −2.79 −1.97 −1.68 −1.86 −0.98 −0.56
Midwest (ref: west) −4.49 −2.60 −3.84 −2.74 −1.49 −1.15 −0.44
South (ref: west) −8.46 −8.72 −7.87 −5.48 −3.75 −2.60 −1.28
Whether commercial (ref: Medicare Advantage) −1.32 3.96 2.16 1.94 1.52 0.81 0.34
Baseline comorbid score 1.38 1.25 0.70 0.18 0.25 0.15 0.07
Tier 2 −8.87 −10.01 −9.07 −4.83 −3.62 −2.18 −0.49
Daily pill burden −10.82 −12.12 −11.03 −5.26 −4.74 −3.49 −1.04
Baseline office visit count −0.28 −0.42 −0.25 −0.10 −0.12 −0.11 −0.04
Baseline outpatient visit count −0.17 −0.25 −0.20 −0.08 0.04 0.02 −0.01
Baseline ER visit count −3.99 −1.69 −0.94 −0.61 −0.76 −0.55 −0.17
Baseline inpatient visit count 0.60 −0.36 −0.29 0.93 0.11 0.07 −0.14
Log of total costs 4.43 3.43 2.63 1.81 1.70 1.15 0.48
Constant 49.57 64.72 77.13 85.11 91.37 95.24 98.62

MPR, medication possession ratio; ER, emergency room.

Boldfaced estimates indicate statistical significance (p-value ≤0.05).