Skip to main content

Table 5 Multiple logistic regression on final immune status in 2014 (n = 4875)

From: Varicella seroprevalence in healthcare workers in a tertiary hospital: an audit of cross-sectional data

Exposure variable

Odds ratio

p value

95 % CI

Lower

Upper

Year

 2009

1.00

 2011

1.95

0.051

0.998

3.82

 2012

0.927

0.775

0.552

1.56

 2014

2.51

<0.001

1.53

4.11

Gender

 Female

1.00

 Male

0.797

0.158

0.582

1.09

Age-group by year of birth

 ≤1959

1.00

 1960–1969

0.563

0.052

0.316

1.00

 1970–1979

0.313

<0.001

0.187

0.525

 ≥1980

0.209

<0.001

0.126

0.348

Vocation

 Nursing

1.00

 Allied health

0.896

0.545

0.628

1.28

 Ancillary

0.591

0.006

0.404

0.862

 Doctor/dentist

1.02

0.959

0.441

2.37

 Admin

0.435

<0.001

0.294

0.642

 Service-provider

0.302

<0.001

0.193

0.473

Nationality

 Singapore

1.00

 Philippines

0.806

0.239

0.563

1.15

 Malaysia

1.29

0.287

0.808

2.05

 China

4.43

0.004

1.61

12.2

 India

0.268

<0.001

0.166

0.433

 Myanmar

1.63

0.351

0.584

4.55

 Others

0.820

0.634

0.362

1.86

 Missinga

1.00

  1. aMissing data on nationality was perfectly collinear with service-provider vocation