Table 3 Results of OLS regression analyses for FEMALES in a) the NCS 1970–72 (n = 2,566) and b) the CCHS 2004 (n = 5,612), with sodium intake (mg/day) regressed on socio-economic variables and covariates
Predictor variable | NCS 1970-72 | CCHS 2004 | |||||
|---|---|---|---|---|---|---|---|
Unadjusted estimates1coefficient (95% CI) | Partially adjusted model2coefficient (95% CI) | Fully adjusted model3coefficient (95% CI) | Unadjusted estimates1coefficient (95% CI) | Partially adjusted model2coefficient (95% CI) | Fully adjusted model3coefficient (95% CI) | ||
Income (ref: low) | Middle | 152.2 (−35.0 to 339.5) | 166.9 (−39.2 to 373.0) | 68.8 (−103.2 to 240.8) | 83.7 (−94.8 to 262.2) | 18.0 (−168.8 to 204.8) | −5.6 (−152.0 to 140.7) |
High | −2.3 (−226.7 to 222.0) | 102.7 (−133.1 to 338.5) | −46.3 (−257.4 to 164.8) | 116.2 (−51.8 to 284.1) | 54.9 (−140.9 to 250.7) | 54.5 (−105.0 to 214.0) | |
Education (ref: lowest) | Low-mid | −147.9 (−354.0 to 58.3) | −173.6 (−380.3 to 33.2) | −216.7 (−406.6 to −26.7)* | 138.3 (−63.6 to 340.1) | 151.8 (−58.5 to 362.1) | −15.5 (−191.4 to 160.4) |
Mid-high | 52.3 (−245.6 to 350.2) | 91.9 (−224.4 to 408.3) | −16.7 (−286.4 to 253.0) | 383.5 (169.9 to 597.0)** | 352.5 (129.0 to 576.1)** | 106.0 (−80.5 to 292.5) | |
Highest | −350.3 (−671.7 to −28.9)* | −362.3 (−709.3 to −15.3)* | −473.2 (−795.4 to −151.0)** | 244.7 (28.2 to 461.1)* | 223.3 (−16.7 to 463.3)†| −90.5 (−299.6 to 118.6) | |
Energy intake (kcal) | .81 (.70 to .92)** | -- | .81 (.71 to .92)** | 1.3 (1.2 to 1.3)** | -- | 1.3 (1.2 to 1.3)** | |
Age | −8.7 (−16.9 to -.53)* | −9.8 (−17.5 to −1.99)* | -.91 (−7.5 to 5.7) | −9.3 (−15.5 to −3.1)** | −8.0 (−14.4 to −1.6)* | 2.1 (−2.7 to 6.9) | |
Region (ref: B.C.) | Prairies | 174.1 (−19.5 to 367.8)†| 183.1 (−21.9 to 388.1)†| 133.1 (−31.6 to 297.8) | −75.5 (−293.6 to 142.5) | −89.6 (−312.6 to 133.4) | −13.3 (−181.5 to 154.9) |
Ontario | 117.9 (−105.2 to 341.0) | 79.4 (−143.0 to 301.8) | 22.2 (−161.5 to 206.0) | −207.5 (−424.5 to 9.6)†| −215.3 (−430.0 to -.65)* | −45.4 (−201.9 to 111.1) | |
Quebec | 430.2 (251.7 to 608.7)** | 397.7 (207.9 to 587.4)** | 137.7 (−32.2 to 307.6) | 201.6 (−55.3 to 458.6) | 265.5 (−7.4 to 538.3)†| 72.5 (−117.6 to 262.5) | |
Atlantic | 132.8 (−36.3 to 301.9) | 119.5 (−71.7 to 310.8) | 54.7 (−104.5 to 213.8) | −55.2 (−290.4 to 180.1) | −43.6 (−294.5 to 207.3) | 70.8 (−111.7 to 253.3) | |
Urban residence (ref: rural) | 16.8 (−136.3 to 169.8) | 20.2 (−137.3 to 177.7) | 31.2 (−96.4 to 158.7) | 147.3 (−22.3 to 316.9)†| 135.7 (−40.1 to 311.5) | 113.6 (−22.1 to 249.4) | |
Born outside of Canada (ref: born in Canada)4 | 71.6 (−200.4 to 343.7) | −2.2 (−267.2 to 262.8) | −46.1 (−285.1 to 192.9) | 48.8 (−189.1 to 286.7) | −48.1 (−288.9 to 192.7) | −38.6 (−218.3 to 141.1) | |
Employed (ref: not employed) | 17.4 (−187.5 to 222.3) | 30.8 (−167.0 to 228.5) | −14.0 (−182.5 to 154.4) | 177.5 (25.1 to 330.0)* | 90.9 (−67.8 to 249.6) | 135.3 (3.0 to 267.7)* | |
Marital status (ref: not married or common-law) | N/A | N/A | N/A | 175.1 (30.5 to 319.7)* | 170.6 (18.2 to 323.0)* | 9.6 (−112.5 to 131.6) | |