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Background We previously presented that women with chronic rhinosinusitis (CRS) who elected endoscopic sinus surgery (ESS) have a higher symptom burden than men. Causes of these gender-based differences warranted further study. Objectives To study gender differences in another cohort of adult patients with CRS who underwent ESS and to compare key histopathologic and serologic features Methods Patients with CRS who underwent ESS (from 2011 to 2014) with structured histopathology reports on surgical samples were studied. The 13-item structured histopathology report detailed key metrics of inflammation and the presence of fungal elements. Clinical, 22-item Sino-Nasal Outcome Test (SNOT-22) score, Lund-Mackay computed tomography (CT) score, serologic (immunoglobulin E [IgE] level, absolute eosinophil count) and histopathologic data were compared between male and female patients by using statistical software. Results We studied 130 eligible subjects (mean age, 54.7 years; 49.2% women). Compared with the men, the women had significantly higher preoperative SNOT-22 scores (women, 48.7; men 38.0 [p = 0.004]) but similar CT scores. Serum IgE levels were significantly higher among women versus men (peak, 433.3 versus 190.8 kU/L [p = 0.03]; closest to surgery, 435.0 versus 190.8 kU/L [p = 0.03]). Tissue fungal elements were significantly more prevalent in women versus men (19.0 versus 5.2%; p = 0.02). Up to this point, the analysis was agnostic of clinical details of the subjects. Further analysis was conducted regarding clinical features. Allergic fungal sinusitis (AFS) was found significantly more commonly in the female versus male patients (21.9 versus 9.1%; p = 0.04). Women versus men had a higher prevalence of migraine (19.4 versus 4.6%; p = 0.01) or any primary headache disorders (23.0 versus 6.2%; p = 0.007). Conclusion Women who underwent ESS for CRS had higher SNOT-22 symptom burden. Worsened symptomatology may be secondary to a higher prevalence of primary headache disorders in women. However, surgeons should also be aware that female patients with CRS who seek ESS may have a higher prevalence of severe disease endotypes (more tissue fungal elements, elevated serum IgE levels) and phenotypes.

LBA1000 Background: The primary aims were to determine whether adjuvant DD AC→PG will be superior to DD AC→P as well as to TAC in DFS and to compare the relative DFS of TAC and DD AC→P. Secondary endpoints include survival and toxicity. Methods: From Nov 3, 2004 to May 3, 2007, 4894 women were randomized; 1630 to TAC (docetaxel [T] 75 mg/m2, doxorubicin [A] 50 mg/m2, cyclophosphamide [C] 500 mg/m2 q3 wks x 6), 1634 to DD AC→P (A 60 mg/m2 and C 600 mg/m2 q2 wks x 4 followed by P 175 mg/m2 q2 wks x 4), and 1630 to DD AC→PG (A 60 mg/m2 and C 600 mg/m2 q2 wks x 4 → P 175 mg/m2 + G 2000 mg/m2q2 wks x 4). Primary G-CSF support was required and erythropoiesis-stimulating agents (ESA) were used at investigator discretion. 52% were postmenopausal, 65% had 1 - 3 positive nodes, and 80% had HR+ breast cancer. Log-rank tests were used for pair-wise comparisons of the primary (DFS) and secondary (OS) endpoints among the three treatment arms. Results: With 64 months median follow-up, 5-year DFS in DD AC→PG group was 80.6% compared with 82.2% in DD AC→P group (HR=1.1; p=0.27) and 80.1 % (HR=0.97; p=0.71) in TAC group. 5-year OS was 90.8% in DD AC→PG group as compared with 89.1% (HR=.89; p=0.25) in DD AC→P group and 89.6 % (HR=0.90; p=0.32) in TAC group. HR for DFS and OS of DD AC→P vs. TAC were 0.89 (p=0.14) and 1.01 (p=0.92) respectively. Toxicities for TAC, DD AC→P, DD AC→PG, respectively: febrile neutropenia (Gr 3/4: 9%, 4%, 4% [p<0.001]), sensory neuropathy (Gr 3/4: <1%, 7%, 6% [p<0.001]), diarrhea (Gr 3/4: 8 %, 2%, 2% [p<0.001]). Hgb was <10 in 12%, 26%, 33% with ESA use in 35.2%, 47%, 51.6% and transfusions in 3.7%, 6.3%, 9.4%. Deaths on treatment: N=13, 5, 7 (p=0.2). AML/MDS: N=5, 8, 11. All cycles completed in 91% for TAC and 88% for DD regimens. Conclusions: Addition of G to DD AC→P did not improve outcomes. No significant differences in efficacy endpoints were identified between DD AC→P and TAC, though toxicity profiles differed. Funding: NCI PHS U10-CA-37377, -69974, -12027, -69651 and NCCTG U10-CA25224, with additional funding from Eli Lilly & Company, and Amgen, Inc.