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Table 3 Effect of safety net activities on operating expenditure

From: The relationship between safety net activities and hospital financial performance

 

Continuous safety net measures

Binary safety net measures

 

(1) OLS

(2) Fe

(3) Fe-Binary

Log Medicaid intensity * 1990

-0.239 [0.074]**

-0.090 [0.053]

 

Log Medicaid intensity * 1991

-0.245 [0.073]**

-0.115 [0.046]*

-0.007 [0.011]

Log Medicaid intensity * 1992

-0.225 [0.077]**

-0.077 [0.042]

-0.008 [0.013]

Log Medicaid intensity * 1993

-0.162 [0.076]*

-0.031 [0.038]

0.003 [0.014]

Log Medicaid intensity * 1994

-0.170 [0.077]*

-0.028 [0.037]

-0.003 [0.017]

Log Medicaid intensity * 1995

-0.043 [0.076]

-0.013 [0.038]

0.001 [0.019]

Log Medicaid intensity * 1996

0.139 [0.080]

0.035 [0.041]

0.011 [0.021]

Log Medicaid intensity * 1997

0.161 [0.078]*

0.026 [0.043]

0.010 [0.024]

Log Medicaid intensity * 1998

0.230 [0.075]**

0.062 [0.047]

0.011 [0.025]

Log Medicaid intensity * 1999

0.231 [0.070]**

0.013 [0.048]

0.006 [0.026]

SES index *1990

-0.008 [0.007]

-0.086 [0.014]**

 

SES index *1991

-0.011 [0.007]

-0.087 [0.013]**

-0.005 [0.012]

SES index *1992

-0.005 [0.007]

-0.084 [0.013]**

0.015 [0.015]

SES index *1993

-0.012 [0.007]

-0.086 [0.013]**

0.008 [0.016]

SES index *1994

-0.012 [0.007]

-0.086 [0.013]**

0.026 [0.020]

SES index *1995

-0.017 [0.007]*

-0.086 [0.013]**

0.036 [0.023]

SES index *1996

-0.024 [0.007]**

-0.090 [0.013]**

0.033 [0.024]

SES index *1997

-0.028 [0.007]**

-0.094 [0.014]**

0.026 [0.026]

SES index *1998

-0.028 [0.007]**

-0.099 [0.014]**

0.029 [0.026]

SES index *1999

-0.033 [0.007]**

-0.102 [0.014]**

0.019 [0.027]

log(case mix index)

2.953 [0.471]**

0.054 [0.329]

0.156 [0.331]

log(discharges)

0.163 [0.137]

0.436 [0.128]**

0.453 [0.132]**

Log(visits)

0.271 [0.106]*

0.003 [0.053]

0.002 [0.054]

Log(discharges) squared

0.068 [0.010]**

0.028 [0.008]**

0.031 [0.008]**

Log(visits) squared

0.012 [0.007]

0.020 [0.003]**

0.022 [0.003]**

Log(case mix)*log(discharged)

-0.216 [0.051]**

0.024 [0.037]

0.014 [0.037]

Log(visits)*log(discharges)

-0.047 [0.014]**

-0.044 [0.007]**

-0.050 [0.008]**

Log(Medicare wage index)

0.371 [0.393]

0.216 [0.374]

0.267 [0.382]

Log(Medicare wage index)squared

0.106 [0.135]

-0.117 [0.091]

-0.109 [0.091]

Log(visits)*log(Medicare wage index)

0.132 [0.042]**

-0.031 [0.025]

-0.045 [0.026]

Log(discharges)*log(Medicare wage index)

-0.169 [0.049]**

0.015 [0.042]

0.027 [0.042]

Log(intern-to-bed ratio)

0.915 [0.049]**

0.174 [0.086]*

0.151 [0.086]

Not-for-profit

-0.005 [0.011]

  

For-profit

-0.022 [0.014]

  

1991 dummy

0.123 [0.022]**

0.137 [0.014]**

0.128 [0.011]**

1992 dummy

0.227 [0.028]**

0.249 [0.017]**

0.258 [0.014]**

1993 dummy

0.302 [0.033]**

0.328 [0.020]**

0.354 [0.017]**

1994 dummy

0.395 [0.035]**

0.396 [0.024]**

0.429 [0.020]**

1995 dummy

0.354 [0.038]**

0.434 [0.027]**

0.475 [0.022]**

1996 dummy

0.343 [0.041]**

0.480 [0.029]**

0.537 [0.024]**

1997 dummy

0.357 [0.043]**

0.544 [0.030]**

0.601 [0.026]**

1998 dummy

0.390 [0.045]**

0.596 [0.033]**

0.669 [0.028]**

1999 dummy

0.445 [0.045]**

0.696 [0.033]**

0.757 [0.029]**

Log percent Medicare*1990

0.104 [0.059]

0.367 [0.066]**

0.398 [0.066]**

Log percent Medicare*1991

0.059 [0.061]

0.306 [0.063]**

0.357 [0.063]**

Log percent Medicare*1992

0.054 [0.062]

0.280 [0.058]**

0.310 [0.059]**

Log percent Medicare*1993

0.034 [0.066]

0.261 [0.055]**

0.274 [0.056]**

Log percent Medicare*1994

-0.011 [0.063]

0.248 [0.054]**

0.260 [0.055]**

Log percent Medicare*1995

0.117 [0.063]

0.258 [0.053]**

0.269 [0.055]**

Log percent Medicare*1996

0.217 [0.068]**

0.290 [0.054]**

0.287 [0.055]**

Log percent Medicare*1997

0.275 [0.069]**

0.285 [0.055]**

0.290 [0.056]**

Log percent Medicare*1998

0.253 [0.070]**

0.270 [0.058]**

0.266 [0.060]**

Log percent Medicare*1999

0.186 [0.071]**

0.154 [0.060]**

0.175 [0.062]**

Log(System HHI)*1990

-0.135 [0.013]**

-0.135 [0.020]**

-0.172 [0.020]**

Log(System HHI)*1991

-0.125 [0.013]**

-0.128 [0.020]**

-0.161 [0.020]**

Log(System HHI)*1992

-0.100 [0.014]**

-0.109 [0.020]**

-0.138 [0.020]**

Log(System HHI)*1993

-0.078 [0.014]**

-0.094 [0.020]**

-0.120 [0.020]**

Log(System HHI)*1994

-0.048 [0.015]**

-0.074 [0.020]**

-0.094 [0.020]**

Log(System HHI)*1995

-0.045 [0.014]**

-0.065 [0.019]**

-0.082 [0.020]**

Log(System HHI)*1996

-0.041 [0.015]**

-0.058 [0.021]**

-0.071 [0.021]**

Log(System HHI)*1997

-0.030 [0.016]

-0.044 [0.021]*

-0.053 [0.022]*

Log(System HHI)*1998

-0.000 [0.016]

-0.024 [0.022]

-0.027 [0.022]

Log(System HHI)*1999

0.000 [0.017]

-0.023 [0.022]

-0.022 [0.022]

Mean HMO penetration*1990

0.047 [0.037]

  

Mean HMO penetration*1991

-0.013 [0.037]

-0.037 [0.013]**

-0.035 [0.012]**

Mean HMO penetration*1992

-0.084 [0.036]*

-0.096 [0.018]**

-0.103 [0.016]**

Mean HMO penetration*1993

-0.113 [0.036]**

-0.125 [0.020]**

-0.136 [0.019]**

Mean HMO penetration*1994

-0.146 [0.037]**

-0.143 [0.025]**

-0.158 [0.023]**

Mean HMO penetration*1995

-0.166 [0.037]**

-0.154 [0.028]**

-0.174 [0.026]**

Mean HMO penetration*1996

-0.170 [0.036]**

-0.174 [0.031]**

-0.195 [0.030]**

Mean HMO penetration*1997

-0.150 [0.036]**

-0.178 [0.033]**

-0.199 [0.031]**

Mean HMO penetration*1998

-0.090 [0.038]*

-0.157 [0.035]**

-0.181 [0.034]**

Mean HMO penetration*1999

-0.086 [0.039]*

-0.199 [0.037]**

-0.220 [0.036]**

Observations

16680

16680

16680

  1. Notes:
  2. Source: AHA Annual Hospital Survey and Medicare Hospital Cost Reports (1990-1999)
  3. aA high score on SES index indicates low socioeconomic status Robust standard errors in brackets
  4. *Significant at p < 0.05; ** significant at p < 0.01%