Citations

AbstractBackgroundUnilateral radiotherapy (RT) of oropharyngeal carcinomas is accepted for patients with lateralized primary and low‐volume nodal disease. Utilizing prospectively defined criteria of laterality and staging positron emission tomography (PET)/CT, we studied outcomes in patients with advanced‐stage oropharyngeal cancer undergoing unilateral RT.MethodsThirty‐seven patients with oropharyngeal tumors >1 cm from midline regardless of node status underwent unilateral RT and were followed prospectively. Patient characteristics: T1 = 11; T2 = 22; T3 = 4; N0 = 3; N1 = 9; N2a = 3; N2b = 21; and Nx = 1. Dosimetry were determined and weekly National Comprehensive Cancer Network (NCCN) distress thermometer data were collected.ResultsAt median follow‐up of 32 months, 3‐year locoregional control, contralateral regional failure, distant metastasis‐free survival, and disease‐free survival were 96%, 0%, 7%, and 93%, respectively.ConclusionLow rates of contralateral neck failure are demonstrated utilizing prospectively defined criteria for unilateral RT. The tolerances of contralateral organs are respected and patients report low to moderate levels of distress throughout treatment.

The prevalence of childhood obesity has increased over the past 3 decades. This study was designed to understand how childhood body mass index (BMI) influences later risk of obesity. We calculated BMIs for children residing in Olmsted County, Minnesota, between January 1, 2005 and December 31, 2012 using medical records data. We defined homogenous BMI trajectory clusters using a nonparametric hill-climbing algorithm. Overall, 16,538 (47%) children had >3 weight assessments at least 1 year apart and were included in the analyses. Within the 8-year follow-up period, children who were younger than 2 years and overweight had a 3- fold increase of obesity (adjusted hazard ratio [HR] = 3.24; 95% confidence interval [CI] = 2.69-3.89) and those aged 5 years and overweight had a 10-fold increased risk of obesity (adjusted HR = 9.97, 95% CI = 8.55-11.62). Three distinct BMI trajectories could be distinguished prior to 5 years of age. The risk of developing obesity in those who are overweight increased dramatically with increasing age. Interventions to prevent obesity need to occur prior to school age to prevent children from entering unhealthy BMI trajectories.

60 Background: Indications for nipple-sparing mastectomy (NSM) with immediate reconstruction have expanded. For cancer patients, NSM is thought best-suited for early stage patients, with nodal involvement initially viewed as a relative contraindication. We undertook this study to evaluate the use and early outcomes of NSM in node-positive (LN+) breast cancer. Methods: We identified 240 cancers in 226 patients (14 bilateral) scheduled for NSM and operated on at our institution 1/2009-6/2014. Data on intraoperative conversion from NSM, recurrence and follow-up was abstracted from the medical record. Chi-square and long-rank tests were used for statistical analysis. P-values < 0.05 were considered significant. Results: Of 240 cancers, 182 were LN- and 58 were LN+. More LN+ patients had T2/T3 tumors (27/58, 47%) than LN- patients (31/182, 17%), p < 0.0001, but ER and HER2 status was similar. Of 58 LN+ cases, 19 (33%) were cN1 confirmed by positive LN cytology and 39 (67%) were cN0 but LN+ at operation. 10 patients LN+ at diagnosis received neoadjuvant therapy (NT) followed by operation (at which 6 were pLN+ and 4 rendered ypN0); 39 cN0 (4 NT, 35 primary surgery) and 9 cN1 primary surgery patients were pLN+ at operation with a median of 1 LN+. NSM was successful in 13/14 LN+ NT patients (93%) and 39/44 LN+ primary surgery patients (89%), p = 0.64. Six LN+ patients (10%) were converted to skin-sparing mastectomy (SSM) at initial operation based on frozen section pathology (n = 5) or at a second operation (n = 1) vs 13/182 LN- patients (7%), p = 0.44. Among cancer patients treated with NSM, 7 locoregional recurrences (5 in LN+, 2 in LN- patients) occurred at 25 mos median follow-up. 3-year locoregional disease-free estimates were 87% (95% CI 75-100%) for LN+ vs 99% (95% CI 97-100%) for LN- patients, p = 0.007. One nipple-areolar recurrence occurred, in a LN- patient. 3-year breast cancer-specific survival was 97% (95% CI 92-100%) in LN+ vs 99% (95% CI 98-100%) in LN- patients, p = 0.40. Conclusions: Conversion from planned NSM to SSM did not differ significantly between LN+ and LN- patients. Short-term oncologic outcomes were satisfactory. These data suggest that NSM may be appropriate for carefully selected LN+ breast cancer patients.

137 Background: LUTS are one of the most common reasons patients visit urologists. These symptoms have not been typically associated with the development of prostate cancer (CaP). However, we hypothesized that visiting a physician for LUTS may modify the diagnostic intensity for CaP compared to population controls. Methods: We examined data from a longitudinal, population-based cohort of 2,447 men between 40 and 79 years old who were followed prospectively from 1990 to 2010. Participants completed the American Urological Association Symptom Index (AUASI) every two years. Self-reported moderate/severe LUTS were defined as an AUASI score >7 (n=1627). Data including the treatment for LUTS (n=874), prostate biopsy (PBx), family history of CaP and diagnosis of CaP were obtained through self-report and review of medical records. Associations between self-reported LUTS, treatment for LUTS, and risk of PBx or CaP were estimated using multivariate Cox proportional hazard models. Results: An interaction was noted between age and LUTS and PBx and CaP diagnosis. In younger men, the diagnosis and treatment of LUTS was associated with increased risk of PBx (HR 2.39: 95% CI 1.83, 3.13) and CaP (HR 3.47: 95% CI 2.38, 5.07). Conversely in older men, treatment for LUTS was associated with a decreased risk of PBx and CaP (Table). Self reported LUTS was not significantly associated with CaP diagnosis in younger men and was protective in older men (Table). Conclusions: There is a differential effect of LUTS on prostate cancer testing and diagnosis when stratified by age. The reason for this difference is unclear, but appears to be due largely to diagnostic intensity rather than a true biologic association between LUTS and CaP. [Table: see text]

240 Background: Contralateral prophylactic mastectomy (CPM) is increasingly chosen by patients with breast cancer. Satisfaction after CPM is high. However, decreased satisfaction has been associated with reoperation after reconstruction. This study’s aim was to examine the adverse aspects patients attribute to reconstruction and the subsequent effect on psychosocial consequences and satisfaction with CPM. Methods: 487 unilateral breast cancer patients with a family history of breast cancer who underwent CPM between 1960 and 1993 were mailed a questionnaire evaluating QOL and satisfaction with CPM. Results: Of 269 respondents, 210 (78%) underwent reconstruction and 59 (22%) did not. Mean age at CPM was 46 and 50 years respectively (p=0.01). Mean follow-up was 20.2 years. Reconstruction was immediate in 96%, 98% with implants and 2% with tissue flap. Reconstruction was associated with lower satisfaction with CPM (p=0.03), but still only 7% (vs 2% in those without reconstruction) said they were dissatisfied. Most (83%) of those with reconstruction said they would choose reconstruction again while 7% were unsure and 10% said they would not. In those who did not undergo reconstruction, 18% said they would choose reconstruction if able to make the choice again while 5% were unsure and 77% said they still would not. 95 patients (45%) of those that underwent reconstruction required one or more reoperations for complications. Those with reoperation reported poorer responses for satisfaction with CPM (p=0.04), choice to have CPM again (p=0.008), and choice to have reconstruction again (p=0.004) when compared to patients with reconstruction and no reoperation. Those with and without reconstruction did not differ significantly with respect to femininity, sexual relationships or emotional stability, but those without reconstruction reported significantly poorer effects related to self esteem (p=0.04) and body appearance (p=0.002). Conclusions: In patients who undergo CPM, many years after surgery satisfaction with CPM is higher in those choosing not to have reconstruction than those with reconstruction although it was high in both groups. Reoperation is common after reconstruction and is associated with lower satisfaction.

Abstract Background: Human papillomavirus (HPV) vaccination rates in the United States remain low and lag behind other recommended adolescent vaccines. Studies evaluating the association of geographic and area-level characteristics with HPV vaccination rates provide a valuable resource for public health planning. Method: We used the Rochester Epidemiology Project data linkage system to ascertain HPV vaccination rates between 2010 and 2015 in a 7-county region of southern Minnesota. Geocoded individual patient data were spatially linked to socioeconomic data from the American Community Survey at the census block group level. Bayesian hierarchical logistic regression was used to model incident vaccination rates, adjusting for individual- and area-level sociodemographic characteristics, and geolocation. Geolocation was modeled as an approximated Gaussian field using a Stochastic Partial Differential Equations approach. All models were estimated using Integrated Nested Laplace Approximations. Results: In adjusted models, increasing age and female sex were associated with increased HPV vaccination. Lower socioeconomic status was associated with decreased rates of initiation [adjusted odds ratio (AOR); 95% confidence interval = 0.90 (0.86–0.95)], completion of the second dose [AOR = 0.88 (0.83–0.93)], and completion of the third dose [AOR = 0.85 (0.80–0.92)]. Geographic spatial analysis demonstrated increased odds of vaccination for the eastern region and in the greater Rochester metropolitan area, showing significant spatial variation not explained by individual level characteristics and ACS block group-level data. Conclusions: HPV vaccination rates varied geographically and by individual and geographically indexed sociodemographic characteristics. Impact: Identifying geographic regions with low HPV vaccination rates can help target clinical and community efforts to improve vaccination rates. Cancer Epidemiol Biomarkers Prev; 26(4); 533–40. ©2017 AACR. See all the articles in this CEBP Focus section, “Geospatial Approaches to Cancer Control and Population Sciences.”

Objectives. We assessed whether extra-immunization can serve as a clinical indicator for fragmentation of care. Methods. Using public-use files of the 1999–2003 National Immunization Survey, we classified children 19–35 months of age by their vaccination providers for the degree of fragmentation of care as ordered from lowest with one vaccine provider, to increasing fragmentation with multiple providers in one facility type, to multiple providers in more than one facility type. Extra-immunization was defined conservatively based on the year-specific recommendations of the Advisory Committee on Immunization Practices (ACIP) for immunizations due before 18 months of age. Of note, 1999–2003 transitioned from oral to inactivated poliovirus vaccines. Results. The rate for extra-immunization was 9.4% (95% confidence interval [CI] 9.2, 9.7). Of single vaccines, the rate for polio vaccine was highest (5.7%, 95% CI 5.5, 6.0). Extra-immunization was lowest for the 69% of children with only one vaccination provider (6.4%, 95% CI 6.1, 6.7), was higher in children who had more than one vaccination provider with one vaccination facility type (13.9%, 95% CI 13.2, 14.6), and highest with more than one facility type (24.1%, 95% CI 22.5, 25.6). Logistic regression (including race/ethnicity, language, provider type, survey year, and a parent-held immunization record) confirmed that multiple providers (adjusted odds ratio [AOR] = 2.30), multiple facility types (AOR=4.67), Spanish language (AOR=1.29), and race/ethnicity (black AOR=1.16, Hispanic AOR=1.31) were each associated with extra-immunization. Excluding poliovirus vaccine from the analysis, AORs for multiple providers and multiple facility types increased to 3.64 and 8.95, respectively. Conclusions. Extra-immunization is associated with receiving immunizations from multiple providers and multiple facility types.

AbstractHuman papillomavirus (HPV) vaccines offer primary prevention of cervical cancer and protection against other HPV‐associated cancers. HPV vaccine coverage in the United States (U.S.) remains low, particularly among older adolescents/young adults, and the uninsured. We assessed awareness and knowledge of HPV disease, HPV‐related cancers, and HPV vaccines among working, uninsured adults. Data from the 2014 Health Information National Trends Survey (HINTS 4, Cycle 4) were used as a benchmark. Patients were surveyed in late 2014 at the Volunteers in Medicine free clinic in Duval County, Florida. Surveys contained validated measures of HPV disease and vaccine knowledge; HPV‐related cancer knowledge was also assessed. Two‐hundred and ninety‐six surveys were analyzable with an 84% participation rate. Half (50.3%) of participants had heard of HPV, and 32.1% had heard of the HPV vaccine; in HINTS, these estimates were 63.6% and 62.7%, respectively (both P < 0.0001). In adjusted models, high HPV disease knowledge was associated with white race and increased education; high vaccine knowledge was associated with white race, increased education, and female sex. Recognition of HPV as a causative agent was 43.9% for cervical, 9.1% for anal, and 11.1% for throat cancers. For all HPV‐associated cancers, participants had lower knowledge/recognition relative to HINTS. The uninsured, socioeconomically disadvantaged adults we surveyed were unaware of a ubiquitous virus that can cause cancer and the existence of a vaccine to protect against it. These findings point to settings and populations in which initiatives to promote HPV vaccination as a cancer prevention tool remain critical.