Annelotte van Bommel

85 Organizational factors affect the use of immediate breast reconstruction Table 2. Univariable and multivariable analyses of hospital organization factors affecting the use of immediate breast reconstruction after mastectomy for 1,980 patients with ductal carcinoma in situ (DCIS). Immediate breast reconstruction (DCIS) (n=1,980) Univariable Multivariable* No % Yes % Total OR 95% CI OR 95% CI Hospital type District hospital 355 71.14 144 28.86 499 ref ref Teaching hospital 663 59.95 443 40.05 1106 1.65 1.31-2.07 1.33 0.97-1.83 University hospital 127 52.26 116 47.74 243 2.25 1.64-3.09 0.97 0.47-1.99 Cancer specific hospital 26 19.70 106 80.30 132 10.05 6.28-16.09 6.10 3.34-11.13 Volume (# diagnosis annually) Group 1 (1/150) 278 66.19 142 33.81 420 ref ref Group 2 (150/300) 627 56.54 482 43.46 1109 1.50 1.19-1.90 1.25 0.88-1.78 Group 3 (>300) ub=436 266 58.98 185 41.02 451 1.36 1.03-1.79 1.19 0.78-1.82 %mastectomies (of all surgical excisions) Group 1 (0/30) 52 57.78 38 42.22 90 ref Group 2 (30/50)) 731 57.33 544 42.67 1,275 1.02 0.66-1.57 Group 3 (50/90) 388 63.09 227 36.91 615 0.80 0.51-1.25 # of weekly MDT Group 1 (1) 361 67.84 174 32.52 535 0.59 0.44-0.80 0.69 0.47-1.02 Group 2 (2) 237 63.37 137 36.63 374 0.71 0.51-0.98 0.67 0.45-0.99 Group 3 (>2) ub=7 146 55.09 119 44.91 265 ref ref Group 4 (unknown) 427 52.98 379 47.02 806 1.09 0.82-1.44 0.71 0.48-1.04 5