Table 5.
Joint Associationa of Serum n-3 and n-6 Polyunsaturated Fatty Acids and the MPO G-463A Polymorphism With Aggressive Prostate Cancerb in the Carotene and Retinol Efficacy Trial, 1985–2003
Fatty Acids | MPOc Genotype | Quartile 1 |
Quartile 2 |
Quartile 3 |
Quartile 4 |
Ptrend | Pinteraction | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
No. of Cases | No. of Controls | OR | 95% CI | No. of Cases | No. of Controls | OR | 95% CI | No. of Cases | No. of Controls | OR | 95% CI | No. of Cases | No. of Controls | OR | 95% CI | ||||
n-3 PUFAs | |||||||||||||||||||
α-Linolenic acid | GG | 28 | 204 | 1.00 | Referent | 39 | 210 | 1.31 | 0.77, 2.22 | 27 | 189 | 1.08 | 0.61, 1.91 | 34 | 217 | 1.16 | 0.67, 2.01 | 0.96 | 0.54 |
GA/AA | 19 | 138 | 1.01 | 0.54, 1.89 | 25 | 132 | 1.45 | 0.80, 2.61 | 19 | 156 | 0.92 | 0.49, 1.71 | 15 | 123 | 0.95 | 0.48, 1.87 | 0.80 | ||
Eicosatrienoic acid | GG | 29 | 202 | 1.00 | Referent | 27 | 209 | 0.92 | 0.52, 1.62 | 33 | 197 | 1.18 | 0.69, 2.05 | 39 | 212 | 1.39 | 0.82, 2.37 | 0.16 | 0.88 |
GA/AA | 14 | 144 | 0.68 | 0.35, 1.35 | 23 | 130 | 1.36 | 0.75, 2.48 | 23 | 145 | 1.18 | 0.65, 2.14 | 18 | 130 | 1.06 | 0.56, 2.01 | 0.21 | ||
Eicosapentaenoic acid | GG | 25 | 216 | 1.00 | Referent | 31 | 203 | 1.25 | 0.71, 2.20 | 37 | 197 | 1.47 | 0.84, 2.55 | 35 | 204 | 1.25 | 0.71, 2.20 | 0.27 | 0.68 |
GA/AA | 14 | 127 | 0.96 | 0.48, 1.93 | 23 | 144 | 1.39 | 0.75, 2.55 | 22 | 146 | 1.19 | 0.64, 2.22 | 19 | 132 | 1.11 | 0.58, 2.14 | 0.95 | ||
Docosapentaenoic acid | GG | 31 | 227 | 1.00 | Referent | 26 | 191 | 0.96 | 0.55, 1.69 | 38 | 206 | 1.34 | 0.80, 2.25 | 33 | 196 | 1.21 | 0.71, 2.06 | 0.24 | 0.013 |
GA/AA | 23 | 118 | 1.49 | 0.82, 2.70 | 26 | 150 | 1.28 | 0.73, 2.26 | 15 | 137 | 0.83 | 0.43, 1.60 | 14 | 144 | 0.72 | 0.37, 1.41 | 0.026 | ||
Docosahexaenoic acid | GG | 25 | 227 | 1.00 | Referent | 40 | 196 | 1.88 | 1.09, 3.24 | 29 | 206 | 1.37 | 0.77, 2.45 | 34 | 191 | 1.64 | 0.93, 2.90 | 0.33 | 0.028 |
GA/AA | 23 | 116 | 1.86 | 1.00, 3.44 | 24 | 146 | 1.55 | 0.84, 2.84 | 15 | 139 | 1.05 | 0.53, 2.08 | 16 | 148 | 1.09 | 0.55, 2.15 | 0.17 | ||
EPA + DHA | GG | 25 | 230 | 1.00 | Referent | 30 | 199 | 1.39 | 0.79, 2.47 | 38 | 200 | 1.74 | 1.01, 3.02 | 35 | 191 | 1.66 | 0.95, 2.92 | 0.07 | 0.011 |
GA/AA | 24 | 115 | 1.97 | 1.07, 3.63 | 19 | 144 | 1.24 | 0.65, 2.34 | 19 | 143 | 1.25 | 0.66, 2.38 | 16 | 147 | 1.06 | 0.54, 2.10 | 0.15 | ||
Total n-3 | GG | 25 | 229 | 1.00 | Referent | 32 | 202 | 1.46 | 0.83, 2.56 | 35 | 201 | 1.64 | 0.94, 2.87 | 36 | 188 | 1.70 | 0.97, 2.98 | 0.07 | 0.002 |
GA/AA | 28 | 118 | 2.21 | 1.23, 4.00 | 19 | 138 | 1.32 | 0.70, 2.51 | 14 | 142 | 0.92 | 0.46, 1.84 | 17 | 151 | 1.10 | 0.56, 2.14 | 0.033 | ||
n-6 PUFAs | |||||||||||||||||||
Linoleic acid | GG | 25 | 202 | 1.00 | Referent | 39 | 193 | 1.61 | 0.93, 2.78 | 32 | 197 | 1.31 | 0.74, 2.30 | 32 | 228 | 1.22 | 0.69, 2.16 | 0.96 | 0.09 |
GA/AA | 18 | 139 | 1.14 | 0.59, 2.18 | 10 | 148 | 0.56 | 0.26, 1.20 | 23 | 146 | 1.27 | 0.69, 2.35 | 27 | 116 | 2.04 | 1.16, 3.74 | 0.017 | ||
γ-Linolenic acid | GG | 35 | 221 | 1.00 | Referent | 26 | 191 | 0.78 | 0.45, 1.35 | 37 | 196 | 1.04 | 0.62, 1.74 | 30 | 211 | 0.78 | 0.46, 1.33 | 0.77 | 0.42 |
GA/AA | 25 | 121 | 1.34 | 0.76, 2.36 | 17 | 151 | 0.70 | 0.37, 1.30 | 16 | 147 | 0.61 | 0.32, 1.16 | 20 | 130 | 0.86 | 0.47, 1.56 | 0.07 | ||
Eicosadienoic acid | GG | 37 | 209 | 1.00 | Referent | 27 | 200 | 0.74 | 0.43, 1.27 | 38 | 194 | 1.17 | 0.71, 1.93 | 26 | 217 | 0.68 | 0.39, 1.17 | 0.29 | 0.09 |
GA/AA | 14 | 134 | 0.62 | 0.32, 1.20 | 19 | 138 | 0.83 | 0.46, 1.52 | 21 | 151 | 0.80 | 0.45, 1.44 | 24 | 126 | 1.12 | 0.64, 1.99 | 0.06 | ||
Dihomo-γ- linolenic acid | GG | 40 | 213 | 1.00 | Referent | 29 | 200 | 0.76 | 0.45, 1.28 | 31 | 207 | 0.80 | 0.48, 1.34 | 28 | 100 | 0.73 | 0.43, 1.25 | 0.33 | 0.30 |
GA/AA | 17 | 131 | 0.70 | 0.38, 1.30 | 20 | 140 | 0.80 | 0.44, 1.43 | 18 | 132 | 0.74 | 0.40, 1.37 | 23 | 146 | 0.85 | 0.48, 1.51 | 0.66 | ||
Arachidonic acid | GG | 30 | 207 | 1.00 | Referent | 34 | 220 | 1.11 | 0.65, 1.89 | 36 | 204 | 1.29 | 0.76, 2.19 | 28 | 189 | 1.03 | 0.59, 1.82 | 0.62 | 0.036 |
GA/AA | 26 | 134 | 1.36 | 0.76, 2.41 | 21 | 124 | 1.24 | 0.68, 2.29 | 21 | 139 | 1.11 | 0.61, 2.03 | 10 | 152 | 0.49 | 0.23, 1.07 | 0.024 | ||
Docosadienoic acid | GG | 24 | 202 | 1.00 | Referent | 33 | 207 | 1.38 | 0.78, 2.44 | 33 | 207 | 1.44 | 0.81, 2.54 | 38 | 204 | 1.69 | 0.97, 2.94 | 0.05 | 0.53 |
GA/AA | 11 | 137 | 0.72 | 0.34, 1.53 | 19 | 135 | 1.29 | 0.68, 2.47 | 24 | 142 | 1.50 | 0.81, 2.77 | 24 | 135 | 1.67 | 0.90, 3.10 | 0.027 | ||
Docosatetraenoic acid | GG | 37 | 208 | 1.00 | Referent | 44 | 197 | 1.31 | 0.81, 2.14 | 21 | 203 | 0.60 | 0.34, 1.07 | 26 | 212 | 0.70 | 0.41, 1.22 | 0.06 | 0.84 |
GA/AA | 20 | 133 | 0.89 | 0.49, 1.61 | 29 | 142 | 1.19 | 0.69, 2.06 | 19 | 142 | 0.80 | 0.44, 1.46 | 10 | 132 | 0.46 | 0.22, 0.97 | 0.08 | ||
Total n-6 | GG | 32 | 201 | 1.00 | Referent | 29 | 206 | 0.91 | 0.53, 1.57 | 38 | 198 | 1.28 | 0.76, 2.16 | 29 | 215 | 0.95 | 0.55, 1.64 | 0.97 | 0.74 |
GA/AA | 21 | 138 | 1.02 | 0.56, 1.86 | 15 | 138 | 0.72 | 0.37, 1.39 | 21 | 145 | 1.02 | 0.56, 1.86 | 21 | 128 | 1.15 | 0.63, 2.11 | 0.49 |
Abbreviations: CARET, Carotene and Retinol Efficacy Trial; CI, confidence interval; DHA, docosahexaenoic acid; EPA, eicosapentaenoic acid; OR, odds ratio; PUFA, polyunsaturated fatty acid.
a Multivariate adjustment for age at enrollment (continuous), race (white, black, others), CARET randomization assignment (retinol plus β-carotene, placebo), family history of prostate cancer in first-degree relatives (yes, no), alcohol consumption (nondrinker, below median, at or above median, unknown), smoking status (current, former/never), smoking pack-years (<40, 40, <60, ≥60), and body mass index (continuous).
b Defined as stage III/IV tumors or Gleason score ≥7.
c The myeloperoxidase gene, MPO.