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. Author manuscript; available in PMC: 2010 Jun 1.
Published in final edited form as: Health Serv Res. 2009 Mar 5;44(3):946–964. doi: 10.1111/j.1475-6773.2009.00952.x

Table 4.

Adjusted marginal effects or betas and 95% confidence intervals (CI) for the relationship between insurance disruption and clinic/hospital service use or health status*

Probit/regression
Instrumental variable analysis
Variable dy/dx 95 % CI dy/dx 95% CI
Clinic/hospital use in past 12 months
 Saw doctor in clinic −0.003 (−0.05, 0.05) 0.11 (−0.64, 0.22)
 Stayed in hospital 1+ days −0.03 (−0.08, 0.03) −0.26 (−0.29, −0.19)
 Went to ER for medical treatment −0.02 (−0.09, 0.05) 0.52 (0.29, 0.7)
 Outpatient surgery 0.03 (−0.05, 0.12) 0.45 (−0.25, 0.73)
 Chiropractor −0.02 (−0.1, 0.06) 0.53 (−0.26, 0.7)
 Saw dentist/oral surgeon 0.01 (−0.06, 0.08) 0.07 (−0.67, 0.25)
Health status
 Fair/poor health −0.004 (−0.04, 0.04) −0.13 (−0.23, 0.18)
 HUI summary score 0.01 (−0.02, 0.05) 0.04 (−0.07, 0.15)
 SF-12 Physical 1.66 (−0.25, 3.57) 3.64 (−1.92, 9.19)
 SF-12 Mental −0.24 (−1.6, 1.12) 9.06 (11.03,7.09)
*

Items in bold are statistically significant at the p<0.05 significance level

Represents beta coefficient from linear regression analysis