Table 3 |
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|
Influence of socioeconomic factors on the decision to call an ambulance in unnecessary situations. |
||||
|
Scenario 1 |
Marginal effect |
95% CI |
P-value |
|
|
|
||||
|
Price |
0.000 |
0.000 |
0.000 |
0.026# |
|
Gender |
0.024 |
0.000 |
0.048 |
0.046 |
|
Age |
0.039 |
0.031 |
0.046 |
0.000 |
|
Family (living alone) |
0.055 |
0.002 |
0.107 |
0.015 |
|
Household income |
0.002 |
-0.006 |
0.011 |
0.614 |
|
Possess a car |
-0.044 |
-0.075 |
-0.014 |
0.002 |
|
History of ambulance use |
0.015 |
-0.009 |
0.038 |
0.216 |
|
Hesitation to call an ambulance |
-0.054 |
-0.078 |
-0.031 |
0.000 |
|
Knowledge of primary emergency medical center open at night |
-0.012 |
-0.038 |
0.014 |
0.360 |
|
Knowledge of emergency medical information center |
0.001 |
-0.030 |
0.032 |
0.952 |
|
Knowledge of private patient transport service |
0.033 |
-0.017 |
0.083 |
0.148 |
|
Log likelihood |
-512 |
|||
|
Pseudo R2 |
0.174 |
|||
|
Chi-square |
215.6 |
|||
|
(P < 0.001) |
||||
|
|
||||
|
Scenario 2 |
Marginal effect |
95% CI |
P-value |
|
|
|
||||
|
Price |
0.000 |
0.000 |
0.000 |
0.132 |
|
Gender |
0.047 |
0.020 |
0.074 |
0.001 |
|
Age |
0.025 |
0.017 |
0.033 |
0.000 |
|
Family (living with at least one child) |
0.009 |
-0.018 |
0.037 |
0.504 |
|
Household income |
-0.016 |
-0.026 |
-0.007 |
0.001 |
|
Possess a car |
-0.071 |
-0.105 |
-0.037 |
0.000 |
|
History of ambulance use |
0.039 |
0.012 |
0.065 |
0.004 |
|
Hesitation to call an ambulance |
-0.030 |
-0.056 |
-0.004 |
0.027 |
|
Knowledge of primary emergency medical center open at night |
-0.042 |
-0.072 |
-0.012 |
0.005 |
|
Knowledge of emergency medical information center |
0.001 |
-0.035 |
0.036 |
0.972 |
|
Knowledge of private patient transport service |
0.015 |
-0.036 |
0.066 |
0.550 |
|
Log likelihood |
-520 |
|||
|
Pseudo R2 |
0.148 |
|||
|
Chi-square |
180.3 |
|||
|
(P < 0.001) |
||||
|
|
||||
|
Scenario 3 |
Marginal effect |
95% CI |
P-value |
|
|
|
||||
|
Price |
0.000 |
0.000 |
0.000 |
0.326 |
|
Gender |
0.030 |
0.013 |
0.048 |
0.001 |
|
Age |
0.013 |
0.007 |
0.018 |
0.000 |
|
Family (living with at least one elderly person) |
0.013 |
-0.026 |
0.051 |
0.484 |
|
Household income |
-0.006 |
-0.011 |
0.000 |
0.060 |
|
Possess a car |
-0.023 |
-0.045 |
-0.002 |
0.018 |
|
History of ambulance use |
-0.001 |
-0.018 |
0.015 |
0.860 |
|
Hesitation to call an ambulance |
-0.024 |
-0.041 |
-0.007 |
0.006 |
|
Knowledge of primary emergency medical center open at night |
-0.024 |
-0.045 |
-0.004 |
0.013 |
|
Knowledge of emergency medical information center |
0.013 |
-0.013 |
0.040 |
0.276 |
|
Knowledge of private patient transport service |
0.014 |
-0.021 |
0.050 |
0.374 |
|
Log likelihood |
-313 |
|||
|
Pseudo R2 |
0.120 |
|||
|
Chi-square |
85.7 |
|||
|
(P < 0.001) |
||||
|
|
||||
|
CI: confidence interval. # The marginal effect of price (= -8.16 × 10-7, standard error; 3.65 × 10-7, z-score; -2.22) was very small but statistically significant in Scenario 1. |
||||
|
Kawakami et al. BMC Health Services Research 2007 7:120 doi:10.1186/1472-6963-7-120 |
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