Table 6 Results of binary logistic regression analyses for FEMALES in a) the NCS (n = 2,566) and b) the CCHS (n = 5,612), with reported use of table salt (yes versus no) regressed on socio-economic variables and covariates
Predictor variable | NCS 1970-72 | CCHS 2004 | |||||
|---|---|---|---|---|---|---|---|
Unadjusted estimates1odds ratio (95% CI) | Partially adjusted model2odds ratio (95% CI) | Fully adjusted model3odds ratio (95% CI) | Unadjusted estimates1odds ratio (95% CI) | Partially adjusted model2odds ratio (95% CI) | Fully adjusted model3odds ratio (95% CI) | ||
Income (ref: low) | Middle | .90 (.29 to 2.7) | .59 (.16 to 2.1) | .59 (.16 to 2.1) | .94 (.61 to 1.4) | .81 (.52 to 1.3) | .80 (.51 to 1.3) |
High | .93 (.23 to 3.8) | .45 (.13 to 1.6) | .45 (.13 to 1.6) | .74 (.47 to 1.2) | .64 (.40 to 1.03)†| .64 (.40 to 1.03)†| |
Education (ref: lowest) | Low-mid | .92 (.33 to 2.6) | .70 (.27 to 1.8) | .70 (.27 to 1.8) | 1.2 (.69 to 2.2) | 1.5 (.85 to 2.6) | 1.4 (.82 to 2.5) |
Mid-high | .67 (.13 to 3.4) | .50 (.13 to 1.9) | .50 (.13 to 1.9) | 1.2 (.71 to 2.1) | 1.4 (.85 to 2.5) | 1.4 (.81 to 2.4) | |
Highest | 4.8 (.81 to 28.2)†| 4.5 (.66 to 30.8) | 4.5 (.65 to 30.9) | .88 (.48 to 1.6) | 1.1 (.59 to 2.1) | 1.05 (.54 to 2.03) | |
Energy intake (kcal) | 1.0001 (.9997 to 1.0005) | -- | 1.00002 (.9996 to 1.0005) | 1.0003 (.99994 to 1.0006) | -- | 1.0003 (.99990 to 1.0006) | |
Age | .95 (.91 to .98)** | .94 (.90 to .98)** | .94 (.90 to .98)** | 1.005 (.99 to 1.02) | 1.01 (.99 to 1.02) | 1.007 (.99 to 1.02) | |
Region (ref: B.C.) | Prairies | 1.8 (.36 to 9.3) | 2.1 (.33 to 13.6) | 2.1 (.33 to 13.6) | .92 (.48 to 1.8) | 1.02 (.54 to 1.9) | 1.04 (.55 to 1.97) |
Ontario | 4.7 (.78 to 28.8)†| 5.5 (1.04 to 28.6)* | 5.4 (1.03 to 28.8)* | .84 (.47 to 1.5) | .95 (.53 to 1.7) | .98 (.54 to 1.8) | |
Quebec | 1.6 (.56 to 4.6) | 1.5 (.47 to 4.6) | 1.5 (.44 to 4.9) | 1.8 (.90 to 3.5)†| 2.2 (1.2 to 4.2)* | 2.2 (1.2 to 4.1)* | |
Atlantic | 36.1 (4.4 to 298.9)** | 44.7 (5.4 to 372.5)** | 44.7 (5.4 to 372.8)** | .69 (.38 to 1.3) | .81 (.44 to 1.5) | .83 (.44 to 1.5) | |
Urban residence (ref: rural) | 1.3 (.52 to 3.01) | 1.5 (.54 to 3.9) | 1.5 (.54 to 3.9) | 1.03 (.63 to 1.7) | 1.05 (.61 to 1.8) | 1.05 (.61 to 1.8) | |
Born outside of Canada (ref: born in Canada)4 | .58 (.15 to 2.1) | .56 (.13 to 2.4) | .56 (.13 to 2.4) | .50 (.26 to .97)* | .46 (.23 to .91)* | .46 (.23 to .90)* | |
Employed (ref: not employed) | 1.3 (.33 to 5.0) | 1.2 (.39 to 3.8) | 1.2 (.39 to 3.8) | 1.1 (.75 to 1.7) | 1.4 (.89 to 2.2) | 1.4 (.90 to 2.2) | |
Marital status (ref: not married or common-law) | N/A | N/A | N/A | 1.3 (.89 to 1.8) | 1.5 (1.02 to 2.1)* | 1.4 (1.0007 to 2.02)†| |