Table 2 Multivariable logistic regression for SARS-CoV-2 swab-positivity in round 17

From: Dynamics of a national Omicron SARS-CoV-2 epidemic during January 2022 in England

Variable

 

Unadjusted

Adjusted for age and sex

Mutually adjusted*

Gender

Male

Ref

Ref

Ref

Female

0.94 (0.88, 1.00)

0.92 (0.86, 0.98)

0.93 (0.87, 0.99)

Employment type

Health care or care home worker

1.16 (1.03, 1.30)

1.12 (1.00, 1.26)

1.06 (0.94, 1.19)

Other essential/key worker

1.24 (1.14, 1.36)

1.20 (1.09, 1.31)

1.15 (1.05, 1.26)

Other worker

Ref

Ref

Ref

Not full-time, part-time, or self-employed

0.77 (0.71, 0.83)

0.92 (0.84, 1.00)

0.89 (0.82, 0.97)

Unknown

1.34 (1.10, 1.64)

1.22 (0.98, 1.50)

1.12 (0.91, 1.39)

Ethnic group

White

Ref

Ref

Ref

Asian

1.47 (1.30, 1.67)

1.25 (1.10, 1.41)

1.11 (0.98, 1.26)

Black

1.63 (1.34, 1.99)

1.42 (1.16, 1.74)

1.18 (0.96, 1.45)

Mixed

1.39 (1.12, 1.72)

1.09 (0.88, 1.36)

1.07 (0.86, 1.33)

Other

1.62 (1.24, 2.11)

1.44 (1.10, 1.88)

1.30 (0.99, 1.71)

Unknown

1.03 (0.84, 1.26)

1.07 (0.87, 1.31)

1.01 (0.82, 1.24)

Household size

1-2

Ref

Ref

Ref

3-5

1.61 (1.51, 1.71)

1.31 (1.22, 1.42)

1.28 (1.17, 1.40)

6+

2.40 (2.04, 2.83)

1.89 (1.59, 2.24)

1.73 (1.44, 2.08)

Number of children in the household

0

Ref

Ref

Ref

1+

1.66 (1.55, 1.77)

1.30 (1.19, 1.41)

1.11 (1.01, 1.24)

Unknown

1.33 (1.16, 1.53)

1.19 (0.98, 1.46)

1.12 (0.91, 1.38)

Living in urban area

Yes

1.47 (1.35, 1.60)

1.39 (1.27, 1.51)

1.24 (1.13, 1.35)

No

Ref

Ref

Ref

Unknown

1.70 (0.90, 3.23)

1.42 (0.75, 2.70)

1.33 (0.70, 2.53)

Deprivation

1 Most deprived

1.70 (1.54, 1.89)

1.61 (1.45, 1.79)

1.34 (1.20, 1.49)

2

1.31 (1.18, 1.44)

1.26 (1.14, 1.39)

1.18 (1.06, 1.30)

3

1.14 (1.03, 1.25)

1.13 (1.03, 1.25)

1.12 (1.02, 1.24)

4

1.07 (0.97, 1.17)

1.07 (0.98, 1.18)

1.06 (0.97, 1.17)

5 Least deprived

Ref

Ref

Ref

  1. *Odds ratios are mutually adjusted for all variables shown and for age and region.
  2. Results are presented as unadjusted Odds Ratios (95% confidence interval), adjusted for age and sex and additionally, for region and all other variables (mutually adjusted OR).
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