TABLE 1

The incidence of paediatric tuberculosis (TB) in Alberta by population group and age, 1990–2014

GroupingCases n (%)Observation person-years (×100 000)#Incidence rateRRadj (95% CI)
UnadjustedAdjusted (95% CI)
By population group
 Overall176 (100)159.371.101.20 (1.01–1.20)
 CBO61 (36)143.850.420.54 (0.39–0.66)1.00
 RFN56 (34)7.507.468.34 (6.13–11.07)16.37 (10.91–24.48)
 FB59 (30)8.017.369.29 (6.43–12.95)18.25 (11.59–28.30)
By age and population group
 0–4 years
  Overall78 (100)5.311.471.47 (1.16–1.83)
  CBO39 (50)4.950.790.79 (0.56–1.08)1.00
  RFN23 (29)0.2210.4810.48 (6.64–15.72)13.31 (7.59–22.85)
  FB16 (21)0.1312.2212.22 (6.99–19.85)15.53 (8.10–28.44)
 5–14 years
  Overall98 (100)10.630.920.92 (0.75–1.12)
  CBO22 (22)9.430.230.23 (0.15–0.35)1.00
  RFN33 (34)0.536.216.22 (4.29–8.75)26.70 (15.10–48.10)
  FB43 (44)0.676.416.41 (4.64–8.64)27.50 (16.09–48.28)

RRadj: age-sex adjusted incidence rate ratio; CBO: Canadian-born “other”; RFN: registered First Nations; FB: foreign born. #: based upon Canadian censuses conducted in 1986, 1991, 1996, 2001, 2006 and 2011, as well as registered First Nations population estimates provided by Indian and Northern Affairs Canada; : adjusted rates by population group were standardised by age and sex, while adjusted rates by age and population group were standardised by sex.