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. 2024 Jan;340:116414. doi: 10.1016/j.socscimed.2023.116414

Table 2.

Marginal effects indicating the probability of patients selecting provider types due to changes in provider attributes and patient characteristics.

PHC Private Clinic Private Hospital
Reduce household distance to PHC by 1 Km 0.0004 [0.0002, 0.0010] −0.0004 [-0.0009, −0.0002] −0.0001 [-0.0001, −0.00002]
Increase PHC clinician competence (76/100) −0.0011 [-0.0039, 0.0018] 0.0010 [-0.0016, 0.0036] 0.0002 [-0.0025, 0.0005]
Reduce patient costs at PHC by 50% 0.0076 [0.0065, 0.0087] −0.0070 [-0.0079, −0.0060] −0.0009 [-0.0011, −0.0008]
Severe patient (ref: not severe) −0.0019 [-0.0027, −0.0011] −0.0326 [-0.0476, −0.0176] 0.0519 [0.0295, 0.0474]
Wealth quintile
 Quintile 2 (ref: Poorest 20%) 0.0029 [0.0019, 0.0038] −0.0329 [-0.0485,- 0.0172] 0.0451 [0.0217, 0.0686]
 Quintile 3 (ref: Quintile 2) 0.0012 [-0.0001, 0.0026] −0.0267 [-0.0457, −0.0077] 0.0383 [0.0099, 0.0667]
 Quintile 4 (ref: Quintile 3) 0.0050 [0.0037, 0.0062] −0.0364 [-0.0529, −0.0199] 0.0472 [0.0225, 0.0719]
 Richest 20% (ref: quintile 4) 0.0053 [0.0039, 0.0067] −0.0563 [-0.0742, −0.0385] 0.0768 [0.0501, 0.1034]
Observations 19398 19398 19398

Note: Figures are marginal effects. This is the change in probability of a patient selecting a particular provider associated with a unit change in a continuous independent variable or a unit change from the reference group in a binary variable, with all other variables at their reference value. Multiplying these figures by 100 gives the percentage point change in a patient selecting a particular provider associated with a unit change in the independent variable. Marginal effects are based on regression results in Appendix A, Model 4.