Table 4 Result from Lognormal-inverse Gaussian multivariable analysis

Gender

Male

Ref

1

Female

-0.149

0.129

0.862

[0.609, 1.114]

0.25

Age of patients

13–19

Ref

1

20–25

-0.057

0.215

0.944

[0.523, 1.366]

0.79

26–49

-0.031

0.211

0.969

[0.556, 1.383]

0.88

 ≥ 50

0.38

0.255

1.471

[0.962, 1.962]

0.13

Marital status

Single

Ref

1

Married

-0.212

0.143

0.808

[0.529, 1.089]

0.14

Widowed

0.3215

0.240

1.379

[0.909, 1.849]

0.18

Divorced

0.6195

0.230

1.858

[1.407, 2.309]

0.0071

Family History

No

Ref

1

Yes

0.1419

0.132

1.1523

[0.894, 1.411]

0.28

Chewing Khat

No

Ref

1

Yes

0.9028

0.174

2.466

[2.125, 2.807]

 ≤ 0.001

Educational Level

Uneducated

Ref

1

Educated

-0.517

0.138

0.596

[0.323, 0.867]

 ≤ 0.001

Employment

No

Ref

1

Yes

-0.4179

0.129

0.658

[0.406, 0.911]

0.0012

Substance Abuse

No

Ref

1

Yes

0.3966

0.134

1.487

[1.224, 1.749]

0.003

Other Cofactors

No

Ref

1

Yes

0.4905

0.151

1.633

[1.337, 1.929]

0.0011

Event of Relapse

No

Ref

1

Yes

0.2058

0.132

1.228

[0.969, 1.487]

0.12

θ = 0.21

τ = 0.081

AIC = 1172.54