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

From: Epidemiology of acute rubella infection in Zambia during the pre-vaccination period (2005–2016) as a baseline for monitoring rubella epidemiology in the post-rubella vaccine introduction era

FactorAdjusted Odds Ratio (95% CI)
Age (years)
  < 10.31 (0.21–0.48)
 1–40.98 (0.82–1.17)
 5–91.97 (1.66–2.34)
 10–142.43 (2.01–2.95)
 15–241.34 (1.06–1.69)
 25+1
Province
 Central1.00 (0.79–1.27)
 Copperbelt0.91 (0.76–1.08)
 Eastern1.10 (0.82–1.49)
 Luapula0.63 (0.48–0.83)
 Lusaka0.84 (0.71–0.99)
 North-Western1.40 (1.05–1.85)
 Northern1.16 (0.92–1.45)
 Southern0.93 (0.76–1.13)
 Western1
Month
 January1.04 (0.75–1.43)
 February0.52 (0.37–0.72)
 March0.48 (0.36–0.65)
 April0.62 (0.43–0.88)
 May0.44 (0.30–0.65)
 June0.88 (0.66–1.18)
 July1.66 (1.33–2.07)
 August1.86 (1.49–2.32)
 September1.29 (1.03–1.60)
 October2.15 (1.77–2.62)
 November1.60 (1.31–1.95)
 December1
Year
 20051.43 (1.16–1.75)
 20061.06 (0.78–1.43)
 20070.93 (0.73–1.19)
 20081.68 (1.39–2.04)
 20091.00 (0.74–1.36)
 20100.12 (0.05–0.28)
 20111.32 (0.91–1.91)
 20121.95 (1.49–2.56)
 20132.53 (1.99–3.23)
 20141.50 (1.14–1.98)
 20150.87 (0.68–1.12)
 20161