Table 4 Age- and BMI-adjusted means of mammographic density (MD) in the breast contralateral to the primary pathologic diagnosis in relation to relative LTL
|  |  | All women (N = 195) | Proliferative diagnosis1 (N = 141) | Non-proliferative diagnosis2 (N = 54) | |||
|---|---|---|---|---|---|---|---|
Measure of MD | Binary LTL¶ | Mean MD§ | (95 % CI)§ | Mean MD§ | (95 % CI)§ | Mean MD§ | (95 % CI)§ |
% density (volume) | <1.20 | 37.81 | (34.43, 41.34) | 38.70 | (34.47, 43.18) | 36.48 | (30.84, 42.59) |
|  | ≥1.20 | 39.22 | (36.58, 41.94) | 39.07 | (36.15, 42.12) | 39.57 | (33.69, 45.93) |
| Â | P-trend | 0.529 | 0.89 | 0.475 | |||
Dense volume (cm3) | <1.20 | 182.28 | (164.16, 201.35) | 185.62 | (162.26, 210.55) | 175.14 | (146.99, 205.75) |
|  | ≥1.20 | 185.24 | (171.22, 199.81) | 184.83 | (168.77, 201.63) | 188.37 | (159.13, 220.08) |
| Â | P-trend | 0.805 | 0.958 | 0.540 | |||
Total breast volume (cm3) | <1.20 | 538.44 | (487.35, 592.08) | 538.35 | (472.00, 609.05) | 531.91 | (452.82, 617.38) |
|  | ≥1.20 | 549.25 | (509.65, 590.33) | 548.35 | (502.20, 596.52) | 559.27 | (478.09, 646.82) |
| Â | P-trend | 0.749 | 0.814 | 0.649 | |||
% density (area) | <1.20 | 26.98 | (23.15, 31.11) | 25.99 | (21.21, 31.26) | 28.84 | (22.38, 36.12) |
|  | ≥1.20 | 26.25 | (23.34, 29.33) | 25.92 | (22.61, 29.46) | 27.27 | (20.99, 34.36) |
| Â | P-trend | 0.774 | 0.983 | 0.748 | |||
Dense area (cm2) | <1.20 | 32.96 | (27.71, 38.65) | 32.22 | (25.83, 39.31) | 34.20 | (24.87, 44.00) |
|  | ≥1.20 | 30.97 | (27.06, 35.15) | 30.79 | (26.46, 35.45) | 31.62 | (22.68, 42.04) |
| Â | P-trend | 0.566 | 0.729 | 0.718 | |||
Total breast area (cm2) | <1.20 | 132.35 | (122.72, 142.36) | 135.33 | (122.76, 148.52) | 126.28 | (111.12, 142.40) |
|  | ≥1.20 | 133.99 | (126.56, 141.64) | 135.66 | (127.01, 144.60) | 129.33 | (113.98, 145.64) |
| Â | P-trend | 0.796 | 0.967 | 0.788 | |||