Impact of individual and neighborhood factors on socioeconomic disparities in localized and advanced prostate cancer risk.

PURPOSE: The reasons behind socio-economic disparities in prostate cancer incidence remain unclear. We tested the hypothesis that individual-level factors act jointly with neighborhood-level social and built environment factors to influence prostate cancer risk and that specific social and built environment factors contribute to socio-econmic differences in risk. METHODS: We used multi-level data, combining individual-level data (including education and known prostate cancer risk factors) for prostate cancer cases (n = 775) and controls (n = 542) from the San Francisco Bay Area Prostate Cancer Study, a population-based case-control study, with contextual-level data on neighborhood socio-economic status (nSES) and specific social and built environment factors from the California Neighborhoods Data System. Multivariable logistic regression models were used to compute adjusted odds ratios separately for localized and advanced stage prostate cancer while controlling for neighborhood clustering. RESULTS: We found a more than twofold increased risk of both localized and advanced prostate cancer with increasing levels of nSES, and decreased risk of advanced prostate cancer with increasing levels of education. For localized disease, the nSES association was largely explained by known prostate cancer risk factors and specific neighborhood environment factors; population density, crowding, and residential mobility. For advanced disease, associations with education and nSES were not fully explained by any available individual- or neighborhood-level factors. CONCLUSIONS: These results demonstrate the importance of specific neighborhood social and built environment factors in understanding risk of localized prostate cancer. Further research is needed to understand the factors underpinning the associations between individual- and neighborhood-level SES and risk of advanced prostate cancer.

Psoriasis and wound healing outcomes: A retrospective cohort study examining wound complications and antibiotic use.

Little is known about wound healing in psoriasis. We performed a cohort study examining differences in wound healing complications between patients with and without psoriasis. Psoriasis patients with traumatic wounds were matched 1:3 to non-psoriasis patients with traumatic wounds based on age, gender, and body mass index (BMI). We examined theincidence of wound complications including infection, necrosis, and hematoma as well as incident antibiotic use within three months following diagnosis of a traumatic wound. The study included 164 patients with traumatic wounds, comprised of 41 patients with psoriasis matched to 123 patients without psoriasis. No statistically significant differences were detected in the incidence of overall wound complications between wound patients with psoriasis and wound patients without psoriasis (14.6% versus. 13.0%, HR 1.18, CI 0.39-3.56). After adjustment for diabetes, peripheral vascular disease, and smoking, no statistically significant differences were detected in the incidence of overall wound complications between patients with and without psoriasis (HR 1.11, CI 0.34-3.58). Specifically, the adjusted rates of antibiotic use were not significantly different between those with and without psoriasis (HR 0.65, CI 0.29-1.46). The incidence of wound complications following traumatic wounds of the skin was found to be similar between patients with and without psoriasis.

Exposure to UV radiation and risk of Hodgkin lymphoma: a pooled analysis.

Ultraviolet radiation (UVR) exposure has been inversely associated with Hodgkin lymphoma (HL) risk, but only inconsistently, only in a few studies, and without attention to HL heterogeneity. We conducted a pooled analysis of HL risk focusing on type and timing of UVR exposure and on disease subtypes by age, histology, and tumor-cell Epstein-Barr virus (EBV) status. Four case-control studies contributed 1320 HL cases and 6381 controls. We estimated lifetime, adulthood, and childhood UVR exposure and history of sunburn and sunlamp use. We used 2-stage estimation with mixed-effects models and weighted pooled effect estimates by inverse marginal variances. We observed statistically significant inverse associations with HL risk for UVR exposures during childhood and adulthood, sunburn history, and sunlamp use, but we found no significant dose-response relationships. Risks were significant only for EBV-positive HL (pooled odds ratio, 0.56; 95% confidence interval, 0.35 to 0.91 for the highest overall UVR exposure category), with a significant linear trend for overall exposure (P = .03). Pooled relative risk estimates were not heterogeneous across studies. Increased UVR exposure may protect against HL, particularly EBV-positive HL. Plausible mechanisms involving UVR induction of regulatory T cells or the cellular DNA damage response suggest opportunities for new prevention targets.

Immigration factors and prostate cancer survival among Hispanic men in California: does neighborhood matter?

BACKGROUND: Hispanics are more likely than other racial/ethnic groups in the United States to be diagnosed with later stage of prostate cancer, yet they have lower prostate cancer mortality rates. The authors evaluated the impact of nativity and neighborhood-level Hispanic ethnic enclave on prostate cancer survival among Hispanics. METHODS: A total of 35,427 Hispanic men diagnosed with invasive prostate cancer from 1995 through 2008 in the California Cancer Registry were studied; vital status data were available through 2010. Block group-level neighborhood measures were developed from US Census data. Stage-stratified Cox proportional hazards models were used to assess the effect of nativity and ethnic enclave on prostate cancer survival. RESULTS: In models adjusted for neighborhood socioeconomic status and other individual factors, foreign-born Hispanics were found to have a significantly lower risk of prostate cancer survival (hazards ratio [HR], 0.81; 95% confidence interval [95% CI], 0.75-0.87). Living in an ethnic enclave appeared to modify this effect, with the survival advantage slightly more pronounced in the high ethnic enclave neighborhoods (HR, 0.78; 95% CI, 0.71-0.86) compared with low ethnic enclave neighborhoods (HR, 0.86; 95% CI, 0.76-0.98). CONCLUSIONS: Despite lower socioeconomic status, Hispanic immigrants have better survival after prostate cancer than US-born Hispanics and this pattern was more striking among those living in ethnic enclaves. Identifying the modifiable individual and neighborhood-level factors that facilitate this survival advantage in Hispanic immigrants may help to inform specific interventions to improve survival among all patients.

Neighborhood influences on recreational physical activity and survival after breast cancer.

PURPOSE: Higher levels of physical activity have been associated with improved survival after breast cancer diagnosis. However, no previous studies have considered the influence of the social and built environment on physical activity and survival among breast cancer patients. METHODS: Our study included 4,345 women diagnosed with breast cancer (1995-2008) from two population-based studies conducted in the San Francisco Bay Area. We examined questionnaire-based moderate/strenuous recreational physical activity during the 3 years before diagnosis. Neighborhood characteristics were based on data from the 2000 US Census, business listings, parks, farmers' markets, and Department of Transportation. Survival was evaluated using multivariable Cox proportional hazards models, with follow-up through 2009. RESULTS: Women residing in neighborhoods with no fast-food restaurants (vs. fewer fast-food restaurants) to other restaurants, high traffic density, and a high percentage of foreign-born residents were less likely to meet physical activity recommendations set by the American Cancer Society. Women who were not recreationally physically active had a 22% higher risk of death from any cause than women that were the most active. Poorer overall survival was associated with lower neighborhood socioeconomic status (SES) (p(trend) = 0.02), whereas better breast cancer-specific survival was associated with a lack of parks, especially among women in high-SES neighborhoods. CONCLUSION: Certain aspects of the neighborhood have independent associations with recreational physical activity among breast cancer patients and their survival. Considering neighborhood factors may aide in the design of more effective, tailored physical activity programs for breast cancer survivors.

The cortisol awakening response (CAR) in male children with autism spectrum disorder.

Our ability to adapt to change is fundamental. The cortisol awakening response (CAR) is a sharp rise in cortisol 30min after waking to help prepare an individual for ensuing stress. Children with autism spectrum disorder (ASD) often have difficulty adapting to change. Exploration of the CAR is warranted; yet, the few studies investigating it are inconclusive. The CAR was investigated in 94 pre-pubertal male children 8-to-12years of age with ASD (46) and typical development (TD, 48). Salivary samples were collected over three diurnal cycles involving two morning samples: M1: Immediately upon Waking and M2: 30-min Post Waking (M2-M1=CAR). The magnitude of the CAR was measured by independent two sample t-tests, variability was measured using Levene's Test, the sequence of the CAR was analyzed by a linear mixed-effects model and proportion of children exhibiting a CAR by chi-square test of independence. There were no significant differences on the CAR between the groups based on magnitude (t(92)=-0.14, p=0.89, d=0.04), variability (F(45,47)=1.11, p=0.72, η(2)=0.11) or the sequence over three days (F(2,88)=0.26, p=0.77, η(2)=0.01). No significant differences were shown in the proportion of children exhibiting a CAR across the groups based on child (χ(2)(1)=0.02, p=0.89) or adult criterion (χ(2)(1)=1.82, p=0.18). Despite group differences in the regulation and responsivity of cortisol, the CAR is indistinguishable between children with and without ASD. Inconsistencies across studies may be due to age, criterion used, and diagnostic distinctions.

Psoriasis and Sexual Behavior in Men: examination of the National Health and Nutrition Examination Survey (NHANES) in the United States.

INTRODUCTION: Epidemiologic data on sexual behavior in psoriasis patients are lacking. AIM: We aim to examine and compare the sexual behaviors between men with and without psoriasis in the United States. METHODS: We analyzed data from the National Health and Nutrition Examination Survey (NHANES) from 2003 to 2006 and 2009 to 2010. Responses from male participants to the dermatology and sexual behavior questionnaires of the NHANES were collated and analyzed. MAIN OUTCOME MEASURES: Outcome measures included sexual orientation, age of first sexual encounter, number of oral and non-oral sexual partners, and frequency of unprotected sex. RESULTS: Among 6,444 U.S. men that responded to the psoriasis question, 170 (2.6%) reported a physician-given diagnosis of psoriasis. Heterosexual men accounted for 95.5% and nonheterosexual men 4.5% of the overall study population. On multivariate analysis, psoriasis was not associated with differences in sexual orientation (odds ratio 1.78, 95% confidence interval [CI] 0.75-4.15). Heterosexual men with psoriasis experienced first sexual encounter at an earlier age than those without psoriasis (weighted difference -0.9 years, P = 0.002). Heterosexual men with psoriasis had significantly fewer female oral sexual partners compared with heterosexual men without psoriasis on multivariate analysis (lifetime partner number: rate ratio [RR] 0.65, 95% CI 0.45-0.95; past-year partner number: RR 0.64, 95% CI 0.42-0.97). No significant differences existed between heterosexual men with and without psoriasis regarding frequency of unprotected sex (RR 0.96, 95% CI 0.85-1.09). Among nonheterosexual men with and without psoriasis, no significant differences existed in age first had sex, number of sexual partners, or frequency of unprotected sex. CONCLUSION: Heterosexual men with psoriasis have significantly fewer lifetime female oral sexual partners compared with those without psoriasis. Dermatologists and other healthcare providers need to examine the genital region routinely and initiate appropriate therapy to improve patients' sexual health.

Psoriasis prevalence among adults in the United States.

BACKGROUND: Psoriasis is a chronic inflammatory disorder associated with significant morbidity and mortality. Up-to-date prevalence data on psoriasis provide the foundation for informing population research, education, and health policy. OBJECTIVE: We sought to determine the prevalence of psoriasis among US adults. METHODS: We performed a cross-sectional study using National Health and Nutrition Examination Survey 2009 through 2010 data to determine psoriasis prevalence rates. RESULTS: From 6218 participants older than 20 years of age, 6216 respondents provided complete information regarding a psoriasis diagnosis. The prevalence of psoriasis among US adults ages 20 years and older is 3.2% (95% confidence interval [CI] 2.6%-3.7%). A total of 7.2 million US adults had psoriasis in 2010; an estimated 7.4 million US adults were affected in 2013. When stratifying the sample by race among those between ages 20 and 59 years, the psoriasis prevalence was highest in Caucasians at 3.6% (95% CI 2.7%-4.4%), followed by African Americans (1.9%; 95% CI 1.0%-2.8%), Hispanics (1.6%; 95% CI 0.5%-2.8%), and others (1.4%; 95% CI 0.3%-2.6%). The prevalence of psoriasis among US adults has not changed significantly since 2003 to 2004 (P > .05). LIMITATIONS: Dermatologist evaluation and skin photographs were unavailable for the 2009 through 2010 surveys. CONCLUSIONS: In the United States, psoriasis remains a common, immune-mediated disease, affecting 7.4 million adults. Its prevalence has remained stable since the mid-2000s.

Psoriasis and sexual behavior in U.S. women: an epidemiologic analysis using the National Health and Nutrition Examination Survey (NHANES).

INTRODUCTION: Although sexual behavior is an integral part of most adults' overall well-being, this aspect of psoriasis patients' quality of life is rarely explored. AIM: The aim of this study is to assess the relationship between psoriasis and sexual behavior in U.S. women. METHODS: We analyzed data from the National Health and Nutrition Examination Survey (NHANES) from 2003 to 2006. Our study focuses on responses to the dermatology and sexual behavior questionnaires of the NHANES. MAIN OUTCOME MEASURES: This study examines the association between psoriasis and sexual behavior in U.S. women with regard to sexual orientation, age of first sexual encounter, number of sexual partners, and frequency of unprotected sex. RESULTS: A total of 3,462 women provided responses to their psoriasis status: 2,753 (80%) women were heterosexual and 709 (20%) were nonheterosexual. Among them, 2.7% reported a physician-given diagnosis of psoriasis. On multivariate analyses, psoriasis was not associated with differences in sexual orientation (odds ratio [OR] 0.90, 95% confidence interval [CI] 0.62-2.01). Among nonheterosexual women, multivariate analysis revealed a lower number of lifetime female sexual partners in women with psoriasis (rate ratio [RR] 0.11, 95% CI 0.04-0.33, P = 0.001). Among heterosexual women, no significant differences existed between those with and without psoriasis in age of first sexual encounter (weighted difference -0.54 years, 95% CI -1.27 to 0.19), number of lifetime male sexual partners (RR 1.19, 95% CI 0.69-2.06), or number of lifetime male oral sex partners (RR 0.72, 95% CI 0.40-1.29). Heterosexual women with psoriasis had 1.13 times more unprotected sex (RR 1.13, 95% CI 1.02-1.24, P = 0.03) compared with those without psoriasis. CONCLUSION: Psoriasis is associated with a significantly reduced number of sexual partners in nonheterosexual women. Psoriasis may differentially impact sexual behavior based on sexual orientation in women.

Surgeon error and slide quality during Mohs micrographic surgery: is there a relationship with tumor recurrence?

BACKGROUND: Recurrences after Mohs micrographic surgery (MMS) have been associated in the past with aggressive tumor type, large tumor size, and location within certain anatomic subunits. These factors are beyond the control of the treating physician and not subject to quality improvement efforts. OBJECTIVE: We sought to determine the relationship between slide quality and surgeon error with tumor recurrence after MMS. METHODS: This case-control study compared slide characteristics from 19 recurrent cancers previously treated using MMS with 95 nonrecurrent controls. The controls were randomly selected from a database of 6208 MMS cases from the University of California, Davis, from 2002 to 2009. RESULTS: Significant factors for recurrences using χ(2) or Fisher exact tests included: tumor type, surgeon error, tissue drop out, dense inflammation, aggressive tumor subtype, and surgeries with 3 or more layers. After multivariate analysis with a stepwise regression model, factors that remained significant included surgeon error, tissue drop out, and aggressive tumor subtype. LIMITATIONS: The study involved only 2 surgeons and was from a single center. Not all recurrences were likely identified. CONCLUSIONS: Surgeon errors resulting in persistent unexcised tumor were strongly associated with tumor recurrence. Tissue drop out and aggressive tumor subtype were also important factors. Two of these factors are within the control of the treating physician, and thus potentially improvable.

Histopathology of surgically treated renal cell carcinoma: survival differences by subtype and stage.

PURPOSE: Previous studies of the impact of renal cell carcinoma histopathology on survival are conflicting and generally limited to institutional analyses. Thus, we determined the role of renal cell carcinoma histopathology on the stage specific survival rate in a large population based cohort. MATERIALS AND METHODS: We used the 2000 to 2005 National Cancer Institute SEER (Surveillance, Epidemiology and End Results) database to identify 17,605 patients who underwent surgery for renal cell carcinoma and met study inclusion criteria. Patients were stratified by histological subtype (clear cell, papillary, chromophobe, collecting duct and sarcomatoid differentiation) and pathological stage. We performed Cox proportional hazard modeling and Kaplan-Meier survival analysis to determine overall and cancer specific survival. RESULTS: Patients with papillary and chromophobe pathology were less likely to present with T3 or greater disease (17.6% and 16.9%, respectively) while patients with collecting duct and sarcomatoid variants were more likely to present with T3 or greater disease (55.7% and 82.8%, respectively) compared to those with clear cell histology (p <0.001). On multivariate analysis histology was significantly associated with overall and cancer specific survival. Patients with chromophobe pathology had improved survival (HR 0.56, 95% CI 0.40-0.78) while those with collecting duct and sarcomatoid variants had worse survival (HR 2.07, 95% CI 1.44-2.97 and 2.26, 95% CI 1.93-2.64, respectively). CONCLUSIONS: Renal cell carcinoma histological subtype predicts overall and cancer specific survival. Patients with collecting duct and sarcomatoid variants of renal cell carcinoma have poor survival, even those who present with low stage disease. These data suggest inherent differences in renal cell carcinoma biology and may ultimately form the basis of future histologically targeted therapies.

Patient-centered online management of psoriasis: a randomized controlled equivalency trial.

BACKGROUND: Previous research suggests that technology-enabled health care delivery may improve access to dermatologic specialty care. Outcomes research using validated outcomes measures is necessary for evaluation of novel health care delivery models. OBJECTIVE: We sought to compare the clinical equivalence of a novel patient-centered online health care delivery model with standard in-office care for follow-up treatment of patients with psoriasis. METHODS: A total of 64 participants with psoriasis were randomized to receive follow-up care either in-office or online over a 24-week period. Patients randomized to the online group underwent standardized training on capturing high-quality digital images of their psoriatic skin and transmitting these images and clinical history to a dermatologist securely. The dermatologist then performed asynchronous, online evaluation and provided recommendations directly to patients. We used clinically validated disease severity and quality-of-life measures to assess effectiveness between the models. RESULTS: Both online and in-office groups showed improvement in psoriasis disease severity as measured by mean improvement in Psoriasis Area and Severity Index (online group: mean = -3.4, in-office: mean = -3.4). Patient-centered online care resulted in similar improvement in psoriasis severity compared with in-person follow-up care (mean difference in Psoriasis Area and Severity Index change 0.1, 95% confidence interval -2.2 to 2.3, a priori equivalence margin of 2.5). Investigator Global Assessment and Dermatology Life Quality Index scores also improved during the study period; no significant differences existed between the two groups. LIMITATIONS: The follow-up period was limited to 24 weeks. CONCLUSION: A patient-centered online model may be an effective alternative to in-office care for follow-up management of psoriasis.

Power of crowdsourcing: novel methods of data collection in psoriasis and psoriatic arthritis.

BACKGROUND: Crowdsourcing is a novel method of collecting research data from diverse patient populations. The quality of research data obtained through crowdsourcing is unknown. OBJECTIVE: The primary aim of this pilot study was to examine how data collected from an online crowdsourcing World Wide Web site compare with those from published literature in psoriasis and psoriatic arthritis (PsA). METHODS: Crowdsourced data were collected from a health crowdsourcing site from August 23, 2008, to June 27, 2011. The crowdsourced data were compared with findings from systematic reviews, meta-analyses, and clinical trials. RESULTS: A total of 160 online patients with psoriasis or PsA were included in the analysis. Among them, 127 patients with psoriasis provided 313 complete responses on psoriasis symptoms and 276 complete responses to psoriasis treatments; 33 patients with PsA provided 91 complete responses on PsA symptoms and 79 responses to PsA treatments. We compared topical treatments, phototherapy, and systemic treatments for psoriasis and PsA from crowdsourced data with the published literature. For the treatment with the largest response rates, equivalency testing was performed comparing crowdsourced data and the published literature. Overall, crowdsourced data were not equivalent to those published in the medical literature. LIMITATIONS: Crowdsourcing sites used different outcomes measures from those reported in clinical trials. CONCLUSION: Differences existed in assessment of treatment effectiveness between crowdsourced data and those published in the literature. With improvements in the collection of crowdsourced data, crowdsourcing can be a valuable tool for collecting patient data in real-world settings for psoriasis and PsA.

Psoriasis comorbidities: results from the National Psoriasis Foundation surveys 2003 to 2011.

BACKGROUND: Studies examining comorbidities among psoriasis patients with varying disease severities measured by body surface area (BSA) are lacking. OBJECTIVE: To examine the association between psoriasis severity and comorbid conditions, including rheumatologic, cardiovascular and other immune-mediated diseases. METHODS: From 2003 to 2011, the National Psoriasis Foundation conducted surveys among 5,604 psoriasis patients. The combined surveys represented the largest study to date that used BSA as a direct measure of psoriasis severity for comorbidity assessment. RESULTS: Over 86% of psoriatic arthritis (PsA) patients reported presenting with psoriasis prior to PsA; the diagnosis of psoriasis preceded that of PsA by a mean period of 14.6 years. Compared to those with mild psoriasis, patients with moderate-to-severe psoriasis had significantly increased adjusted odds of PsA (moderate: odds ratio, OR: 1.21, 95% confidence interval, CI: 1.04-1.41; severe: OR: 2.32, 95% CI: 1.98-2.70). Patients with severe psoriasis had increased adjusted odds of diabetes (OR: 1.5, 95% CI: 1.08-2.08) and cardiovascular disease (OR: 1.5, 95% CI: 1.01-2.24) compared to those with mild-to-moderate psoriasis. Odds of rheumatoid arthritis, ankylosing spondylitis, lupus, Crohn's disease and multiple sclerosis were not significantly increased in patients with severe psoriasis. CONCLUSION: Compared to those with mild-to-moderate psoriasis, patients with severe psoriasis are at increased odds of PsA, diabetes and cardiovascular diseases.

Crowdsourcing for research data collection in rosacea.

Several medical crowdsourcing sites are available to patients online, but few studies in the literature have compared crowdsourced data to clinical trials. Herein, we compare data from rosacea patients from a major medical crowdsourcing site with those from randomized controlled trials.

Psoriasis Prevalence in Adults in the United States.

IMPORTANCE: Determining psoriasis prevalence is fundamental to understanding the burden of the disease, the populations most affected, and health policies to address the disease. OBJECTIVE: (1) To determine the prevalence of psoriasis among adults in the US and (2) to evaluate the change in psoriasis prevalence over time since the 2003-2004 National Health and Nutrition Examination Survey (NHANES) data. DESIGN, SETTING, AND PARTICIPANTS: This population-based cross-sectional study used 2011-2014 NHANES data (collected from January 1, 2011, to December 31, 2014) with sampling from a general, noninstitutionalized US civilian population. Participants were 20 years or older and were selected via a multistage probability sampling design to ensure that surveys were nationally representative. Eligible participants had an in-person interview followed by a medical examination by medical professionals. Data were analyzed from July 15, 2019, to December 23, 2020. EXPOSURES: None. MAIN OUTCOMES AND MEASURES: Psoriasis prevalence in the US, as measured by the percentage of people in the representative sample with psoriasis, and trend statistics comparing prevalence estimates from the 2003-2004, 2009-2010, and 2011-2014 NHANES cycles. RESULTS: A total of 12 625 participants (mean [SD] age, 32.8 [24.1] years; 6492 women [51.4%]; and 4828 non-Hispanic White participants [38.2%]) answered the question of whether they were given the diagnosis of psoriasis by a physician or another health care professional. Psoriasis prevalence among US adults 20 years or older was 3.0% (95% CI, 2.6%-3.4%). Based on the 2020 US census data, this outcome translates to an estimated 7.55 million US adults with psoriasis. Psoriasis prevalence was similar between women and men, with 3.2% (95% CI, 2.6%-3.8%) in women and 2.8% (95% CI, 2.4%-3.3%) in men. Psoriasis prevalence was highest in White individuals at 3.6% (95% CI, 2.9%-4.2%), followed by other racial/ethnic groups (non-Hispanic, including multiracial) at 3.1% (95% CI, 1.2%-5.1%), Asian individuals at 2.5% (95% CI, 1.6%-3.3%), Hispanic individuals (including Mexican American and other Hispanic individuals) at 1.9% (95% CI, 1.3%-2.5%), and Black individuals at 1.5% (95% CI, 1.0%-2.0%). Psoriasis prevalence was not different based on patients' marital status, education, income, or medical insurance status. The prevalence of psoriasis among US adults did not differ significantly since 2003. CONCLUSIONS AND RELEVANCE: The results of this cross-sectional study suggest that psoriasis remains a common, immune-mediated disease that affects 3.0% of the US adult population, or more than 7.5 million adults. Its prevalence has not differed since evaluation in 2003. These prevalence data are foundational to determining the burden of psoriasis and for supporting efforts in research, education, and health policy.

Impact of individual and neighborhood factors on disparities in prostate cancer survival.

BACKGROUND: We addressed the hypothesis that individual-level factors act jointly with social and built environment factors to influence overall survival for men with prostate cancer and contribute to racial/ethnic and socioeconomic (SES) survival disparities. METHODS: We analyzed multi-level data, combining (1) individual-level data from the California Collaborative Prostate Cancer Study, a population-based study of non-Hispanic White (NHW), Hispanic, and African American prostate cancer cases (N = 1800) diagnosed from 1997 to 2003, with (2) data on neighborhood SES (nSES) and social and built environment factors from the California Neighborhoods Data System, and (3) data on tumor characteristics, treatment and follow-up through 2009 from the California Cancer Registry. Multivariable, stage-stratified Cox proportional hazards regression models with cluster adjustments were used to assess education and nSES main and joint effects on overall survival, before and after adjustment for social and built environment factors. RESULTS: African American men had worse survival than NHW men, which was attenuated by nSES. Increased risk of death was associated with residence in lower SES neighborhoods (quintile 1 (lowest nSES) vs. 5: HR = 1.56, 95% CI: 1.11-2.19) and lower education (