Table 3. Annual unadjusted and adjusted prevalence ratios (PR) of COPD among Aboriginal groups in Alberta (Canada) from fiscal years 2002 to 2010.
| Fiscal year | All aboriginal groups | First Nations | Métis | Inuit | ||||
|---|---|---|---|---|---|---|---|---|
| COPD PR (95% CI) | COPD PR (95% CI) | COPD PR (95% CI) | COPD PR (95% CI) | |||||
| Unadjusted | Adjusted | Unadjusted | Adjusted | Unadjusted | Adjusted | Unadjusted | Adjusted | |
| 2002–2003 | 1.57 | 2.13 | 1.59 | 2.31 | 1.11 | 1.60 | 2.91 | 2.10 |
| (1.43, 1.72)** | (1.92, 2.36)** | (1.45, 1.76)** | (2.06, 2.58)** | (0.94, 1.32) | (1.34, 1.91)** | (2.38, 3.57)** | (1.70, 2.59)** | |
| 2003–2004 | 1.48 | 2.12 | 1.50 | 2.30 | 1.04 | 1.59 | 2.85 | 2.04 |
| (1.36, 1.60)** | (1.92, 2.33)** | (1.38, 1.64)** | (2.08, 2.54)** | (0.89, 1.22) | (1.35, 1.87)** | (2.37, 3.42)** | (1.68, 2.48)** | |
| 2004–2005 | 1.44 | 2.12 | 1.46 | 2.32 | 1.03 | 1.61 | 2.70 | 1.98 |
| (1.34, 1.55)** | (1.94, 2.32)** | (1.35, 1.58)** | (2.11, 2.55)** | (0.89, 1.19) | (1.39, 1.86)** | (2.28, 3.21)** | (1.65, 2.38)** | |
| 2005–2006 | 1.39 | 2.15 | 1.39 | 2.40 | 1.03 | 1.61 | 2.76 | 1.97 |
| (1.29, 1.48)** | (1.98, 2.34)** | (1.29, 1.50)** | (2.19, 2.62)** | (0.91, 1.18) | (1.41, 1.85)** | (2.36, 3.24)** | (1.66, 2.34)** | |
| 2006–2007 | 1.36 | 2.15 | 1.35 | 2.37 | 1.07 | 1.68 | 2.76 | 1.97 |
| (1.28, 1.45)** | (1.98, 2.33)** | (1.26, 1.45)** | (2.17, 2.58)** | (0.95, 1.21) | (1.48, 1.91)** | (2.38, 3.21)** | (1.68, 2.32)** | |
| 2007–2008 | 1.34 | 2.14 | 1.32 | 2.37 | 1.07 | 1.67 | 2.72 | 2.00 |
| (1.26, 1.42)** | (1.98, 2.31)** | (1.24, 1.41)** | (2.18, 2.57)** | (0.96, 1.20) | (1.48, 1.88)** | (2.36, 3.13)** | (1.71, 2.33)** | |
| 2008–2009 | 1.33 | 2.12 | 1.32 | 2.37 | 1.07 | 1.63 | 2.69 | 1.95 |
| (1.26, 1.41)** | (1.97, 2.28)** | (1.24, 1.40)** | (2.18, 2.56)** | (0.96, 1.19) | (1.45, 1.83 ** | (2.35, 3.08)** | (1.68, 2.26)** | |
| 2009–2010 | 1.32 | 2.07 | 1.30 | 2.31 | 1.1 | 1.61 | 2.71 | 1.86 |
| (1.25, 1.40)** | (1.93, 2.22)** | (1.23, 1.38)** | (2.14, 2.49)** | (0.99, 1.21) | (1.44, 1.80 ** | (2.38, 3.08 ** | (1.61, 2.16)** | |
Reference group: Non-Aboriginal population. Adjusted for sex (male, female), age group (35–44 years, 45–54 years, 55–64 years, 65–74 years, 75 years and over), socioeconomic status proxy (full subsidy, partial subsidy, no subsidy), area of residence (urban rural, remote)
95% CI = 95% confidence interval; COPD = chronic obstructive pulmonary disease; PR = prevalence ratios
** p<0.001