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Diarrhea

0.124**

0.0011

Nausea

0.059**

0.0012

Abdominal pain

0.336**

0.0028

Vomiting

-0.019**

0.0009

Neutropenia

-0.045**

0.0005

19

Efficacy measures:

Coefficient

Standard Error

General survival (months)

0.496**

0.0049

Response rate (percentage)

0.422**

0.0027

Response rate * second line indicator

-0.141**

0.0013

Time to progression (months)

-2.58**

0.019

Second-line therapy

10.2**

0.050

Tablet

-0.101**

0.0086

Physician clinics

0.0099

0.0093

(hospitals omitted)

Constant

-2.18**

0.056

Table 2

Coefficient Estimates from Hedonic Regression

Grade 3 or 4 side effects:

Notes: the unit of observation is the logarithm of the mean price a type of customer (physician clinics or hospitals) pays for a regimen in a quarter. The regressions include a full set of quarter indicator variables. The interaction between general survival and the second line therapy indicator, and time to progression and the second line therapy indicator are dropped due to colinearity. ** = significantly different from zero at the 5-percent level.

Observations

R2

492

0.99

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