Skip to main content
. 2005 Oct;40(5 Pt 1):1466–1488. doi: 10.1111/j.1475-6773.2005.00427.x

Table 5.

Results from Analysis of Hospital and Surgery Utilization

Hospital Stays Inpatient Surgeries Outpatient Surgeries



Any (Logit) Number (Censored Poisson) Any (Logit) Number (Censored Poisson) Any (Logit) Number (Censored Poisson)
Medicaid HMO market share −1.107 −1.520** −0.666 −1.081 0.160 0.419
(0.859) (0.541) (1.521) (1.509) (0.995) (0.728)
Medicaid PCCM market share −1.017 −0.886 −0.268 −1.165 0.937 0.363
(0.883) (0.493) (1.185) (1.332) (0.749) (0.544)
Observations 2,602 2,602 2,602 2,602 2,602 2,602
Predictions, holding covariates at their sample means
HMO market share
 0.30 0.080 0.093 0.007 0.006 0.052 0.053
 0.40 0.072 0.080 0.006 0.005 0.053 0.056
 0.50 0.065 0.068 0.006 0.004 0.054 0.058
 0.60 0.058 0.059 0.005 0.004 0.054 0.061
PCCM share
 0.30 0.070 0.081 0.006 0.005 0.058 0.056
 0.40 0.063 0.074 0.006 0.004 0.064 0.058
 0.50 0.057 0.068 0.006 0.004 0.070 0.061
 0.60 0.052 0.062 0.006 0.003 0.076 0.063

Note: Standard errors are in parentheses.

**

p<.01. Models also include the other covariates shown in Table 4.

HMO, health maintenance organization; PCCM, primary care case management.