Table 2. Association between dairy food intake and prevalence of CKD (stage 3 or greater), presented as adjusted odds ratios (OR) and 95% confidence intervals (CI) among Blue Mountains Eye Study participants in 1992–4 (n = 2689).
| Dairy consumption, servings/day | eGFR <60 mL·min−1.1.73 m−2 | ||
|---|---|---|---|
| No. of cases/no. at risk | Age-sex adjusted OR (95% CI) | Multivariable-adjusted OR (95% CI) | |
| Total dairya | |||
| 1st quintile (≤0.75) | 83/532 | 1.0 (reference) | 1.0 (reference) |
| 2nd quintile (0.76–1.18) | 85/543 | 0.97 (0.68–1.39) | 0.91 (0.63–1.32) |
| 3rd quintile (1.18–1.63) | 74/539 | 0.93 (0.64–1.34) | 0.87 (0.60–1.28) |
| 4th quintile (1.64–2.71) | 57/538 | 0.65 (0.44–0.96) | 0.64 (0.43–0.96) |
| 5th quintile (≥2.72) | 69/538 | 0.80 (0.56–1.17) | 0.82 (0.56–1.20) |
| P for trend | 0.09 | 0.17 | |
| Reduced/low fat dairya,b | |||
| 1st quintile (≤0.00) | 127/730 | 1.0 (reference) | 1.0 (reference) |
| 2nd quintile (0.02–0.05) | 31/351 | 0.59 (0.37–0.92) | 0.66 (0.41–1.05) |
| 3rd quintile (0.06–0.57) | 69/536 | 0.86 (0.61–1.22) | 0.84 (0.58–1.21) |
| 4th quintile (0.58–1.12) | 84/534 | 1.04 (0.73–1.47) | 1.05 (0.73–1.51) |
| 5th quintile (≥1.13) | 57/538 | 0.65 (0.44–0.95) | 0.64 (0.43–0.96) |
| P for trend | 0.23 | 0.23 | |
| Regular fat dairy a,c | |||
| 1st quintile (≤0.17) | 81/533 | 1.0 (reference) | 1.0 (reference) |
| 2nd quintile (0.18–0.47) | 71/538 | 0.94 (0.65–1.36) | 0.95 (0.65–1.40) |
| 3rd quintile (0.47–0.90) | 70/543 | 0.80 (0.55–1.16) | 0.83 (0.57–1.22) |
| 4th quintile (0.91–1.54) | 83/544 | 0.90 (0.61–1.32) | 0.84 (0.56–1.26) |
| 5th quintile (≥1.55) | 63/531 | 0.70 (0.47–1.04) | 0.74 (0.49–1.11) |
| P for trend | 0.10 | 0.16 | |
*Further adjusted for receipt of pension, body mass index, smoking, serum triglycerides, hypertension, and history of diagnosed diabetes.
†Further adjusted for baseline regular-fat dairy product consumption.
‡Further adjusted for baseline low-fat dairy product consumption.