Table 5 Factors associated with the occurrence of CHE

 0–1

1

1

  ≥ 2

3.59 (2.85,4.53)^***

1.32 (0.96,1.82)

 No

1

1

 Yes

0.76 (0.43,1.36)

1.32 (0.64,2.73)

 1-2members

1

1

 3–4 members

0.53 (0.42,0.68)^***

0.88 (0.65,1.18)

  ≥ 5 members

0.43 (0.29,0.64)^***

0.45 (0.27,0.74)^**

 Female

1

1

 Male

0.51 (0.39,0.67)^***

0.84 (0.60,1.19)

 Below average

1

1

 Above average

3.95 (3.05,5.13)^***

1.52 (1.02,2.25)^*

 Illiteracy or elementary

1

1

 Junior high school and above

0.38 (0.28,0.51)^***

0.87 (0.61,1.25)

 Unemployment

1

1

 Employment

0.27 (0.22,0.34)^***

0.61 (0.45,0.82)^**

 No

1

1

 Yes

4.36 (3.36,5.64)^***

2.17 (1.62,2.92)^***

 No

1

1

 Yes

9.06 (6.98,11.77)^***

10.48 (7.62,14.41)^***

 No

1

1

 Yes

1.38 (0.89,2.14)

0.97 (0.57,1.64)

Absence of NCMS

 No

1

1

 Yes

0.44 (0.30,0.65)^***

0.65 (0.43,1.00)^*

 No

1

1

 Yes

2.45 (1.52,3.95)^***

1.19 (0.68,2.09)

 Quintile1 (poorest)

1

1

 Quintile 2 (poorer)

0.41 (0.30,0.55)^***

0.53 (0.37,0.76)^**

 Quintile 3 (middle)

0.25 (0.18,0.36)^***

0.42 (0.27,0.64)^***

 Quintile 4 (richer)

0.23 (0.16,0.33)^***

0.39 (0.25,0.62)^***

 Quintile 5 (richest)

0.20 (0.14,0.30)^***

0.35 (0.22,0.56)^***