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Table 4 Univariate and multivariate cox proportional hazard model fitting results

From: Patterns and patient factors associated with loss to follow-up in the Muhimbili sickle cell cohort, Tanzania

 

Univariate Analysis

Multivariate Analysis

Estimate

Hazard ratio

P-value

Estimate

Hazard ratio

P-value

95% CI

Sex (Male)

0.0819

1.0853

0.1590

    

Pre blood transfusion (Yes)

0.1076

1.1136

0.4840

    

Pre dactylitis (Yes)

− 0.2414

0.7855

0.677

    

Pre pain (Yes)

0.1135

1.1202

0.0669

    

Pre chest (Yes)

0.1227

1.1305

0.415

    

Pre convulsion (Yes)

−0.7094

0.4919

0.2200

    

Pre leg ulceration (Yes)

−0.9425

0.3897

0.103

    

Pre priapism (Yes)

0.2814

1.325

0.574

    

Pain (Yes)

−0.2834

0.7532

0.0005

    

Fever (Yes)

0.2295

1.2579

0.0359

    

Age group (5–17)

1.0212

2.7764

<2e-16

0.9624

2.6181

< 0.0001

2.2324–3.0705

Age group (0–4)

2.9007

18.1868

<2e-16

2.6602

14.2995

< 0.0001

11.007–118.5768

Well today (Yes)

0.1839

1.2019

0.0027

0.1249

1.1331

0.0495

1.0003–1.2837

Mean corpuscular volume (fL)

−0.0049

0.9951

0.0925

    

Mean cell hemoglobin (pg)

−0.0369

0.9638

3.26E-06

    

Mean corpuscular hemoglobin concentration (g/dL)

−0.0812

0.922

1.43E-10

    

White blood cells (10^3/uL)

0.0349

1.0355

8.74E-15

0.0157

1.0158

0.0074

1.0042–1.0276

Red blood cells (10^6/uL)

0.0421

1.043

0.28

    

Mean platelet volume (fL)

−0.1372

0.8718

4.58E-06

    

Hemoglobin concentration (g/dL)

−0.0371

0.9635

0.0753

    

Diastolic blood pressure

−0.0047

0.9953

0.156

    

Systolic blood pressure

−0.0183

0.9819

1.29E-13

−0.0078

0.9922

0.0022

0.9872–0.9972

Temperature

0.109

1.1151

0.0485

    

Hematocrit (%)

0.0034

1.0034

0.618

0.0235

1.0238

0.0039

1.0076–1.0404

  1. Variables starting with “Pre” were attributes that were collected from patients asking on any episodes that they faced since their last clinic that required OPD attendance or admission
  2. Fever this attribute explains if one has fever (1) or does not have(0); painful this attribute says if one has painful episodes (1) or not (0) and well_today states if one is well (0) or not well