Table 2 Independent factors associated with acute rubella (Zambia 2005–2016)

  < 1

0.31 (0.21–0.48)

 1–4

0.98 (0.82–1.17)

 5–9

1.97 (1.66–2.34)

 10–14

2.43 (2.01–2.95)

 15–24

1.34 (1.06–1.69)

 25+

1

 Central

1.00 (0.79–1.27)

 Copperbelt

0.91 (0.76–1.08)

 Eastern

1.10 (0.82–1.49)

 Luapula

0.63 (0.48–0.83)

 Lusaka

0.84 (0.71–0.99)

 North-Western

1.40 (1.05–1.85)

 Northern

1.16 (0.92–1.45)

 Southern

0.93 (0.76–1.13)

 Western

1

 January

1.04 (0.75–1.43)

 February

0.52 (0.37–0.72)

 March

0.48 (0.36–0.65)

 April

0.62 (0.43–0.88)

 May

0.44 (0.30–0.65)

 June

0.88 (0.66–1.18)

 July

1.66 (1.33–2.07)

 August

1.86 (1.49–2.32)

 September

1.29 (1.03–1.60)

 October

2.15 (1.77–2.62)

 November

1.60 (1.31–1.95)

 December

1

 2005

1.43 (1.16–1.75)

 2006

1.06 (0.78–1.43)

 2007

0.93 (0.73–1.19)

 2008

1.68 (1.39–2.04)

 2009

1.00 (0.74–1.36)

 2010

0.12 (0.05–0.28)

 2011

1.32 (0.91–1.91)

 2012

1.95 (1.49–2.56)

 2013

2.53 (1.99–3.23)

 2014

1.50 (1.14–1.98)

 2015

0.87 (0.68–1.12)

 2016

1