| IGF-1:IGFBP-3 ratio |  | |||
---|---|---|---|---|---|
 | Quartile 1 | Quartile 2 | Quartile 3 | Quartile 4 | P value |
Predominant type 1, no type 3/other lobule type (n) | (27/90) | (20/98) | (18/100) | (9/110) | Â |
Age and batch-adjusteda | 1 (reference) | 0.68 (0.33 to 1.39) | 0.60 (0.29 to 1.26) | 0.26 (0.11 to 0.64) | 0.01 |
Multivariate model 1b | 1 (reference) | 0.80 (0.38 to 1.67) | 0.75 (0.34 to 1.66) | 0.34 (0.13 to 0.86) | 0.10 |
Multivariate model 2c | 1 (reference) | 0.83 (0.39 to 1.76) | 0.75 (0.33 to 1.71) | 0.32 (0.12 to 0.83) | 0.09 |