Hospitalized (yes/no)

Number of days of hospitalization

Probit

IVprobit-second stage

OLS

IV-second stage

Hospital Insurance

-0.068

-0.032^***

-2,664

-7.542^***

(0.009)

(0.062)

(0.027)

(0.044)

age

0.060^***

0.098^***

0.012^***

0.019^***

(0.036)

(0.180)

(0.003)

(0.004)

Household wealth index (base = poorest)

Poorer

-0.022

0.980

-0.006

0.995

(0.014)

(0.015)

(0.016)

(0.003)

middle

0.042^***

0.959^***

0.055

0.134^**

(0.014)

(0.014)

(0.010)

(0.005)

Richer

0.0670^***

0.935^***

0.001^***

0.892^***

(0.015)

(0.014)

(0.012)

(0.001)

Richest

0.752^**

0.851^***

0.045^**

0.677^***

(0.020)

(0.017)

(0.004)

(0.016)

Education level (Base = no education)

 Primary

0.0404^**

0.965^***

0.001

0.999

(0.016)

(0.012)

(0.002)

(0.231)

Secondary or higher

0.0616

0.823^***

0.0172

1.017

(0.046)

(0.018)

(0.005)

(0.025)

Health indicator

Body mass index

0.118^***

1.125^***

1.208^***

1.898^***

(0.009)

(0.010)

(0.002)

(0.022)

Married

0.0923^*

1.097^*

0.018

0.992

(0.039)

(0.043)

(0.006)

(0.006)

Urban residence

0.069^*

1.072^***

0.002^*

1.006^***

(0.011)

(0.012)

(0.003)

(0.003)

Constant

-0.709^***

0.492^***

3.019^***

2.472^***

(0.062)

(0.031)

(0.011)

(0.218)

Observations

13,883

13,883

13,883

13,883