Table 7.
Odds ratios (ORs) and 95% confidence intervals (CIs) for the association of yearly nutrients intake from solanaceous vegetables and colorectal cancer risk.
| Yearly nutrients intake quartiles | Case | Control | Crude OR (95%CI) | Adjusted ORa (95%CI) |
|---|---|---|---|---|
| Dietary fiber | ||||
| Q1 | 274 | 208 | 1.00 | 1.00 |
| Q2 | 234 | 209 | 0.87 (0.67,1.13) | 0.80 (0.59,1.07) |
| Q3 | 167 | 208 | 0.57 (0.43,0.76) | 0.58 (0.42,0.80) |
| Q4 | 158 | 208 | 0.52 (0.38,0.70) | 0.50 (0.36,0.71) |
| P for Trendb | <0.001 | <0.001 | ||
| Vitamin A | ||||
| Q1 | 278 | 208 | 1.00 | 1.00 |
| Q2 | 215 | 209 | 0.77 (0.59,1.00) | 0.72 (0.53,0.96) |
| Q3 | 186 | 208 | 0.65 (0.50,0.86) | 0.61 (0.45,0.83) |
| Q4 | 154 | 208 | 0.50 (0.37,0.67) | 0.51 (0.36,0.71) |
| P for Trend | <0.001 | 0.001 | ||
| Vitamin E | ||||
| Q1 | 283 | 212 | 1.00 | 1.00 |
| Q2 | 213 | 212 | 0.76 (0.59,0.98) | 0.66 (0.50,0.89) |
| Q3 | 178 | 203 | 0.63 (0.48,0.83) | 0.58 (0.43,0.79) |
| Q4 | 159 | 206 | 0.52 (0.39,0.71) | 0.51 (0.36,0.71) |
| P for Trend | <0.001 | <0.001 | ||
| Vitamin C | ||||
| Q1 | 263 | 209 | 1.00 | 1.00 |
| Q2 | 196 | 208 | 0.74 (0.57,0.97) | 0.68 (0.51,0.93) |
| Q3 | 207 | 212 | 0.76 (0.58,0.99) | 0.68 (0.50,0.92) |
| Q4 | 167 | 204 | 0.60 (0.44,0.81) | 0.51 (0.36,0.72) |
| P for Trend | 0.009 | 0.002 | ||
| Folate | ||||
| Q1 | 249 | 208 | 1.00 | 1.00 |
| Q2 | 226 | 209 | 0.91 (0.70,1.19) | 0.94 (0.70,1.26) |
| Q3 | 194 | 208 | 0.76 (0.58,1.00) | 0.74 (0.55,1.01) |
| Q4 | 164 | 208 | 0.63 (0.47,0.84) | 0.67 (0.48,0.93) |
| P for Trend | 0.011 | 0.057 | ||
| Carotene | ||||
| Q1 | 277 | 208 | 1.00 | 1.00 |
| Q2 | 215 | 209 | 0.77 (0.59,1.00) | 0.72 (0.53,0.97) |
| Q3 | 187 | 208 | 0.66 (0.50,0.86) | 0.63 (0.46,0.85) |
| Q4 | 154 | 208 | 0.50 (0.37,0.68) | 0.51 (0.36,0.72) |
| P for Trend | <0.001 | 0.001 | ||
| Vitamin B2 | ||||
| Q1 | 246 | 209 | 1.00 | 1.00 |
| Q2 | 256 | 215 | 1.02 (0.79,1.32) | 0.95 (0.71,1.27) |
| Q3 | 177 | 201 | 0.72 (0.54,0.95) | 0.71 (0.51,0.97) |
| Q4 | 154 | 208 | 0.57 (0.42,0.77) | 0.55 (0.39,0.77) |
| P for Trend | 0.001 | 0.002 | ||
| Calcium | ||||
| Q1 | 254 | 208 | 1.00 | 1.00 |
| Q2 | 253 | 215 | 0.97 (0.75,1.24) | 0.93 (0.70,1.23) |
| Q3 | 174 | 203 | 0.67 (0.50,0.88) | 0.66 (0.48,0.91) |
| Q4 | 152 | 207 | 0.53 (0.39,0.72) | 0.50 (0.35,0.71) |
| P for Trend | <0.001 | <0.001 | ||
| Iodine | ||||
| Q1 | 262 | 208 | 1.00 | 1.00 |
| Q2 | 221 | 209 | 0.85 (0.65,1.11) | 0.87 (0.65,1.18) |
| Q3 | 194 | 208 | 0.71 (0.54,0.94) | 0.76 (0.56,1.04) |
| Q4 | 156 | 208 | 0.56 (0.42,0.75) | 0.55 (0.39,0.76) |
| P for Trend | 0.001 | 0.004 | ||
a
Adjusted by BMI, colon cancer in first-degree relative, smoking status, and alcohol drinking as category variables; and total energy and red meat intake as continuous variables.
b
Test for trends calculated with the median intake of each category of nutrients intake as a continuous variable.
Bold values indicates statistical significance, which is defined as a two-side P < 0.05.