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Table 4 Odds for exceeding illness duration of 90 days based on logistic regression

From: Long-term symptoms after SARS-CoV-2 infection in a cohort of hospital employees: duration and predictive factors

 

OR (95%CI)

SE

p value

Age (31–40)

0.97 (0.27–3.39)

0.64

0.960

Age (41–50)

1.96 (0.62–6.41)

0.59

0.256

Age (51–65)

3.03 (0.87–11.44)

0.65

0.089

Gender (female)

1.99 (0.69–6.07)

0.55

0.212

Professional group (Medical staff)

0.18 (0.03–0.95)

0.88

0.051

Professional group (Others)

0.52 (0.18–1.46)

0.53

0.222

Transmission type (Possibly nosocomial)

1.29 (0.41–4.09)

0.58

0.658

Transmission type (Definitely nosocomial)

3.05 (1.03–9.67)

0.57

0.049

Work on the COVID ward (yes)

1.24 (0.42–3.67)

0.55

0.700

Initial Ct value < 30

3.36 (1.22–9.94)

0.53

0.022

Rhinitis within the first 10 days

1.06 (0.34–3.30)

0.57

0.922

Concentration disorders within the first 10 days

2.28 (0.66–8.32)

0.64

0.197

Sore throat within the first 10 days

0.33 (0.11–0.98)

0.56

0.051

Fever within the first 10 days

2.81 (0.92–9.42)

0.59

0.079

Cough within the first 10 days

1.38 (0.48–4.05)

0.54

0.556

Breathlessness within the first 10 days

7.89 (1.87–41.43)

0.78

0.008

Shortness of breath within the first 10 days

1.09 (0.37–3.23)

0.55

0.878

Limb pain within the first 10 days

1.16 (0.34–4.09)

0.63

0.814

Unspecific pain within the first 10 days

2.17 (0.53–10.07)

0.74

0.297

Sleep disorder within the first 10 days

1.69 (0.41–7.22)

0.72

0.467

Brain fog within the first 10 days

0.70 (0.20–2.28)

0.61

0.554

Anxieties within the first 10 days

2.84 (0.52–18.54)

0.90

0.245

Mood changes within the first 10 days

0.78 (0.06–13.84)

1.37

0.856

Anosmia or Ageusia within the first 10 days

3.01 (1.10–8.84)

0.53

0.037

Heaviness of limbs or Weakness in the limbs within the first 10 days

0.63 (0.16–2.34)

0.68

0.488

Fatigue or Headache within the first 10 days

0.20 (0.05–0.68)

0.65

0.014

  1. OR; odds ratio. 95%CI; 95% confidence interval. SE; standard error. Only hospital employees with available initial Ct value were included (N = 150). For nominal scaled variables, odds ratio refers to the reference characteristic (age ≤ 30, male gender, nursing staff, work on the non-COVID ward, community acquired, initial Ct value ≥ 30). Odds ratios were calculated for the presence of the listed symptoms within the first ten days after initial SARS-CoV-2 detection compared to the absence of the respective symptoms. Symptoms that occurred rarely were not considered. If two symptoms correlate strongly with each other, they are combined and the combined symptom is called observed as soon as one of the symptoms occurs
  2. The accuracy data of logistic regression model were as followed: accuracy 0.73, cross-validation accuracy 0.61, sensitivity 0.79, cross-validation sensitivity 0.53, specificity 0.64, cross-validation specificity 0.50
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BMC Infectious Diseases

ISSN: 1471-2334

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