Table 4 Contrasted predicted probabilities (marginal effects difference) for categorical variables with significant effect in Zero-inflated ordered logit regression analysis on 2019 data only

Independent variables

 Geographic strata

  Zone (base: 1. Phnom Penh) [dummy]

   Plain

-0.008

-0.043**

0.026**

0.025**

   Tonle Sap

-0.012*

-0.031*

0.022*

0.020**

   Coastal

-0.008

-0.043*

0.026**

0.025**

   Plateau/Mountain

-0.021**

-0.030*

0.027**

0.025**

   Urban/Rural area = 1, Urban

0.009**

0.009

-0.009*

-0.009*

 Socio-economic strata

  Wealth quintile (base: 1. Poorest) [dummy]

   Second

0.001

0.016#

-0.008

-0.009#

   Middle

0.003

0.031**

-0.016**

-0.019**

   Fourth

0.006*

0.048**

-0.026**

-0.028**

   Wealthiest

-0.007

0.093**

-0.043**

-0.043**

 Household (HH) structure [dummy]

  Household size [number of members] (base: 3–4)

   1–2

-0.003

-0.028*

0.014**

0.018**

   5–6

0.001

0.015#

-0.008#

-0.008#

   7 and above

-0.006

0.052**

-0.023**

-0.023**

 Social health protection coverage (card holding) [dummy]

  Health Equity Fund (HEF) or Priority Access Card

0.005*

0.026**

-0.015**

-0.015**

 Free healthcare [dummy]

  Free healthcare excl. transportation in the last month

0.389**

-0.204**

-0.109**

-0.077**

Healthcare needs in the last 30 days

 Diseases [dummy]

  Chronic diseases

   Neoplasms

-0.010**

-0.079**

0.036**

0.052**

  Infectious diseases

   Endocrine, metabolic and digestive diseases

-0.007**

-0.050**

0.026**

0.031**

   Injuries/Trauma

-0.007*

-0.049*

0.024*

0.031#

 Non-illness-related care [dummy]

  Prevention (Vit A, deworming, immunization & health checks)

-0.004**

-0.026**

0.014**

0.016**

Out-of-pocket healthcare expenditure (OOPHE) funding sources in the last 30 days [dummy]

 Savings

-0.003**

-0.021**

0.012**

0.013**

 Borrowing

-0.016**

-0.153**

0.053**

0.116**

 Selling of assets and production

-0.020**

-0.205**

0.046**

0.179**