Skip to main content
. 2015 Jun 24;10(6):e0129259. doi: 10.1371/journal.pone.0129259

Table 2. Calculated Elasticities based on a Fixed-effects regression with clustered errors, Dependent variable: index of hospital quality (IHQ).

Eq.(1) Avg. citations (1) Eq. (2) H-index (1)
Avg. publications 0.082 Avg. publications -0.077
(0.080) (0.060)
Avg. publications*cardiology 0.053*** Avg. publications*cardiology 0.060**
(0.016) (0.016)
Avg. publications*oncology 0.092** Avg. publications*oncology 0.120**
(0.037) (0.033)
Avg. Citations 0.158*** H-index 0.325***
(0.016) (0.016)
Avg. Citations*cardiology 0.020** H-index*cardiology -0.064***
(0.007) (0.013)
Avg. Citations*oncology 0.001 H-index*oncology -0.032***
(0.023) (0.008)
For-profit -0.059** -0.059***
(0.030) (0.018)
Staffed beds -0.013 -0.036
(0.060) (0.048)
Length of stay 0.650*** 0.643**
(0.191) (0.194)
Median income -0.178 -0.149
(0.130) (0.113)
Median age -0.033 -0.128***
(0.235) (0.216)
Physicians 0.199* 0.207**
(0.118) (0.101)
Net income/loss per physician 0.147** 0.137***
(0.034) (0.028)
N = 145 R2 = 0.631 N = 145 R2 = 0.637

Analyses were conducted in STATA version 13.1, Elasticities are calculated at means.

(1) Delta Method standard errors in parentheses

* p < 0.10

** p < 0.05

*** p<0.001