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Table 6 Factors associated with positive SARS-Co-V2 test among healthcare workers (n = 4040)

From: SARS-Co-V2 infection in never, former, and current tobacco/nicotine users: a cohort study of 4040 Egyptian healthcare workers

 

Total positive SARS-Co-V2 test at baseline and follow-up(N=270)

Positive SARS-Co-V2 test at baseline (N=170)

Positive SARS-Co-V2 test at follow-up(N=100)

Adjusted odds ratioa

p-value

Adjusted odds ratioa

p-value

Adjusted odds ratioa

p-value

(95% CI)

(95% CI)

(95% CI)

Age

 18–24

Ref

 

Ref

 

Ref

 

 25–29

1.47 (0.87–2.47)

0.147

0.85 (0.37–1.94)

0.700

0.34 (0.099–1.18)

0.090

 30–39

1.89 (1.09–3.25)

0.022

1.18 (0.58–2.39)

0.647

0.40 (0.16–0.97)

0.041

 40–49

1.95 (1.10–3.48)

0.023

1.24 (0.65–2.34)

0.516

0.95 (0.52–1.75)

0.879

  ≥ 50

1.88 (0.99–3.57)

0.052

1.44 (0.76–2.73)

0.258

0.84 (0.47–1.52)

0.563

Gender

 Male

Ref

 

Ref

 

Ref

 

 Female

0.92 (0.66–1.27)

0.595

0.70 (0.48–1.02)

0.066

1.43 (0.76–2.67)

0.267

Marital status

 Not married

Ref

 

Ref

 

Ref

 

 Married

1.08 (0.76–1.54)

0.662

1.04 (0.67–1.61)

0.857

1.25 (0.68–2.29)

0.475

Education

 University/higher

Ref

 

Ref

 

Ref

 

 Secondary/equivalent

1.65 (1.08–2.52)

0.021

1.56 (0.92–2.64)

0.097

1.97 (0.99–3.94)

0.055

 Primary/preparatory

2.08 (1.18–3.65)

0.011

1.73 (0.81–3.67)

0.156

2.84 (1.23–6.53)

0.014

 Less than primary

1.72 (0.81–3.67)

0.159

1.06 (0.30–3.83)

0.926

2.75 (1.02–7.40)

0.045

Occupation

 Physician

Ref

 

Ref

 

Ref

 

 Nurse

1.58 (0.95–2.63)

0.077

1.66 (0.90–3.07)

0.106

1.01 (0.40–2.55)

0.988

 Non-clinical care

1.25 (0.76–2.07)

0.385

0.99 (0.52–1.87)

0.976

1.21 (0.50–2.93)

0.665

Tobacco/nicotine use

 Never

Ref

 

Ref

 

Ref

 

 Former

0.45 (0.11–1.89)

0.273

0.27 (0.04–2.02)

0.202

1.02 (0.13–8.08)

0.985

 Current

0.65 (0.38–1.09)

0.101

0.55 (0.29–1.04)

0.066

0.92 (0.38–2.26)

0.857

Pre-existing medical condition

 No

Ref

 

Ref

 

Ref

 

 Yes

1.17 (0.84–1.62)

0.354

0.87 (0.56–1.35)

0.531

1.46 (0.90–2.37)

0.124

Contact with a confirmed case

 No

Ref

 

Ref

 

Ref

 

 Yes

0.99 (0.76–1.30)

0.990

1.49 (1.06–2.08)

0.021

0.68 (0.44–1.06)

0.087

Symptoms

 No

Ref

 

Ref

 

Ref

 

 Yes

1.65 (1.25–2.16)

< 0.001

2.59 (1.81–3.72)

< 0.001

1.59 (1.01–2.50)

0.047

  1. a Multivariable logistic regression analysis
  2. For the three models, variables included were age, gender, marital status, education, occupation, pre-existing medical condition, contact with a confirmed case, symptoms, tobacco use, and tobacco use-pre-existing medical conditions interaction term. For the interaction term adjusted OR at both baseline and follow-up phases: in former users = 2.84, 95% CI: 0.35–22.94, p = 0.327; and in current users = 0.52, 95% CI: 0.11–2.35, p = 0.393
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BMC Public Health

ISSN: 1471-2458

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