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Table 3 Parameter estimates, standard error and p-value for RI-RS of LMM

From: Predictors of change in CD4 cell count over time for HIV/AIDS patients on ART follow-up in northern Ethiopia: a retrospective longitudinal study

Fixed effect for √(CD4 cell ) count

Parameter

Estimate

Standard Error

DF

t-value

p-value

Intercept

12.07

1.84

1019

6.569

0.0000*

Age

-0.013

0.0204

204

-0.61

0.54

Sex (ref.= female)

 Male

0.153

0.425

204

0.36

0.719

Residence (ref.= urban)

 Rural

0.0231

0.398

204

0.058

0.954

Baseline CD4 cell

0.0125

0.00125

204

9.985

0.001*

Baseline hemoglobin

0.054

0.056

204

0.98

0.32

Function status (ref.= working)

Ambulatory

-0.952

1.0217

204

-0.9318

0.352

Bedridden

-2.459

1.055

204

-2.33

0.02*

WHO stage (ref.= stage-I)

 Stage-II

0.174

1.0562

204

0.165

0.869

 Stage-III

0.0478

1.062

204

0.0449

0.964

 Stage-IV

0.1835

1.114

204

0.164

0.869

HIV/TB status (ref.= no)

 Yes

-1.015

0.709

204

-1.43

0.154

Visiting time

0.0262

0.068

1019

0.3855

0.6999

  1. *Indicates significance of covariates at 5% level of significance