Prevalence, Cognitive and Socio-Demographic Determinants of Prostate Cancer Screening

Disparity in cognitive factors related to cancer screening uptake based on the theory of planned behavior

INTRODUCTION

Early detection of cancer is a highly effective way to decrease cancer-related deaths. The purpose of this study was to determine the disparity in cognitive factors related to cancer screening uptake based on the theory of planned behavior (TPB).

METHODS

In this cross-sectional study, conducted in Kermanshah County, the west of Iran, during 2019, a total of 1760 people aged 30 to 75 years old, were randomly selected to participate voluntarily in the study. Participants filled out a questionnaire including the socio demographic variables, socioeconomic status (SES), TPB variables, and cancer screening uptake behaviors.

RESULTS

The mean age of respondents was 45.28. 44.96% of the participants had undergone cancer screening at least once. Socioeconomic status (SES) and gender had the most significant impact on the disparity in cancer screening uptake, with contributions of 74.64% and 22.25% respectively. Women were 8.63 times more likely to be screened than men. Participants with a family history of cancer had a 2.84 times higher chance of being screened. Single individuals were significantly less likely to be screened compared to married individuals. The concentration index for attitude, subjective norms (SN), perceived behavior control (PBC), behavior intention, and cancer screening uptake was 0.0735, 0.113, 0.333, 0.067, and 0.132 respectively. Intention (Beta = 0.225 and P: < 0.001) is a significant predictor of cancer screening behaviors.

CONCLUSION

The findings of this study are highly valuable for health policymakers in Iran. They emphasize the significance of creating, executing, and assessing campaigns that promote intention, PBC and SN, particularly among disadvantaged individuals. By doing so, we can effectively decrease the disparity in cancer screening rates. It is crucial to prioritize men, single individuals, and disadvantaged groups in cancer screening promotion programs. This knowledge can be utilized to develop an intervention that is guided by theory and supported by evidence, with the aim of increasing cancer screening rates and minimizing disparities.

Fluorine-18 Labeled Urea-Based Ligands Targeting Prostate-Specific Membrane Antigen (PSMA) with Increased Tumor and Decreased Renal Uptake

High expression of prostate-specific membrane antigen (PSMA) in prostate cancers prompted the development of the PSMA-targeted PET-imaging agent [18F]DCFPyL, which was recently approved by the FDA. Fluorine-18-labeled Lys-Urea-Glu-based oxime derivatives of [18F]DCFPyL were prepared for the comparison of their in vitro and in vivo properties to potentially improve kidney clearance and tumor targeting. The oxime radiotracers were produced by condensation of an aminooxy functionalized PSMA-inhibitor Lys-Urea-Glu scaffold with fluorine-18-labeled aldehydes. The radiochemical yields were between 15-42% (decay uncorrected) in 50-60 min. In vitro saturation and competition binding assays with human prostate cancer cells transfected with PSMA, PC3(+), indicated similar high nM binding affinities to PSMA for all radiotracers. In vivo biodistribution studies with positive control PC3(+) tumor xenografts showed that the kidneys had the highest uptake followed by tumors at 60 min. The PC3(+) tumor uptake was blocked with non-radioactive DCFPyL, and PC3(-) tumor xenograft (negative control) tumor uptake was negligible indicating that PSMA targeting was preserved. The most lipophilic tracer, [18F]2a, displayed comparable tumor-targeting to [18F]DCFPyL and a desirable alteration in pharmacokinetics and metabolism, resulting in significantly lower kidney uptake with a shift towards hepatobiliary clearance and increased liver uptake.

Socio-Economic Status and Clinical Breast Examination Screening Uptake: Findings from the First Cohort Study among Iranian Kurdish Women

Clinical Breast Examination (CBE) is utilized as a screening modality in many low income countries without widespread mammography capability. The aim of the current study was to evaluate the impact of socio-economic status (SES) on CBE screening rates in Iranian Kurdish women. A cross-sectional study was conducted in the western region of Iran. A sample of 5,289 Iranian Kurdish women aged 35-65 years old was analyzed. Data were collected from July 2014 to September 2018. The Concentration Index-CI and Concentration Curve were used to estimate the socioeconomic inequalities in CBE rate. The analysis of data was done by STATA software (Version 14). 12.3% of the women had received CBE at least once. CBE rates in the 46-50 age group were higher than in other age groups (OR = 2.06; 95% CI = 1.56-2.71). Women with 6-9 years of education had higher odds ratio of receiving CBE (OR = 1.41; 95% CI = 1.02-1.94). Women living in rural areas were less likely to have received CBE compared to those living in urban areas (OR=0.54; 95% CI = 0.42-0.61). The overall concentration index for receipt of CBE was 0.188. In countries without widespread mammography programs, strategies for the promotion of CBE should focus on the lower SES population.
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Prostate cancer screening: A survey of medical students' knowledge in Lome, Togo, and associated determinants in a resource-limited African context

OBJECTIVES

The aims of this study were to assess the knowledge of medical students in Lomé about these means of screening for prostate cancer in a context of limited resources and controversy about prostate cancer screening, and to identify the determinants associated with these results.

METHODS

This was a prospective descriptive and cross-sectional study conducted in the form of a survey of medical students regularly enrolled at the Faculty of Health Sciences of the University of Lomé for the 2019-2020 academic years.

RESULTS

Of the 1635 eligible students, 1017 correctly completed the form, corresponding to a rate of 62.20%. The average age was 22 ± 3.35 years. The sex ratio (M/F) was 2.5. Undergraduate students were the most represented (53.69%). Students who had not received any training on prostate cancer were the most represented (57.13%). Only 12.88% of the students had completed a training course in urology. Concerning the prostate-specific antigen blood test, there was a statistically significant relationship between the students' knowledge and some of their socio-demographic characteristics, namely age (p value = 0.0037; 95% confidence interval (0.50-1.77)); gender (p value = 0.0034; 95% confidence interval (1.43-2.38)); study cycle (p value ˂ 0.0001; 95% confidence interval (0.56-5.13)) and whether or not they had completed a placement in a urology department (p value ˂ 0.0001; 95% confidence interval (0.49-1.55)). On the contrary, there was no statistically significant relationship between students' knowledge of the digital rectal examination and their study cycle (p value = 0.082; 95% confidence interval (0.18-3.44)).

CONCLUSION

Medical students in Lomé have a good theoretical knowledge and a fair practical level of the digital rectal examination clinical examination and an average theoretical knowledge and a below average practical level of prostate-specific antigen, increasing however along the curriculum in the context of prostate cancer screening.

Nutrition Education Seminars for Prostate Cancer-Diet and Prostate Program: Evaluation and Recommendations (DAPPER Study)

Nutrition is important for prostate cancer (PCa) care as it may influence PCa progression and risk of comorbid diseases. The aim of this pilot study was to assess changes in knowledge and satisfaction in men with PCa following attendance at a nutrition education seminar. Fifty-two men with PCa attended nutrition education seminars instructed by a Registered Dietitian. Participants completed the Revised General Nutrition Knowledge Questionnaire (GNKQ-R) preseminar and 2 weeks postseminar, along with a satisfaction survey. Increased nutrition knowledge was observed through a significant (P = 0.023) improvement in mean scores of 71.6% (P < 0.005) preseminar compared with 79.3% (P < 0.005) postseminar on the GNKQ-R. Participants reported the seminar as a satisfactory method for meeting their diet information needs. Using thematic analysis 3 themes emerged: importance of diet information, desire for an integrative approach, and the value of group learning. This pilot study found that a group nutrition education seminar may be an effective and satisfactory approach to fulfilling the dietary information needs of this population. Group education may be an economically sustainable approach with potential application in other tumour sites or health conditions.

Prostate specific antigen test uptake: a cross sectional study on elderly men in Western Iran

BACKGROUND

Prostate cancer (PCa) is the second most common malignancy in men worldwide and the incidence rate of PCa has been increasing in recent years. The aim of the current study was to determine beliefs elderly men towards prostate-specific antigen (PSA) test uptake.

METHODS

This cross-sectional study conducted among 352 elderly men (60-74 years old age) in the west of Iran. The Health Belief Model (HBM) was applied as a study framework to evaluation of beliefs towards PSA test uptake. Data were analyzed by SPSS version 16 using appropriate statistical tests including t-test, chi-square, bivariate correlations, and logistic regression at 95% significant level.

RESULT

The mean age of participants was 65.55 years [SD: 3.90]. Almost 16.9% of the elderly men had uptake PSA during last year. There was significant association between PSA test uptake with older age (P = 0.013), better economic status (P = 0.023), higher education level (P = 0.004), positive family history of prostate cancer (P = 0.018), and number of family members more than four (P = 0.032). The best determinants predictors for PSA test uptake were cues to action [OR: 1.967 and 95% CI: 1.546, 2.504], perceived severity [OR: 1.140 and 95% CI: 1.008, 1.290], and perceived benefits towards PSA test uptake [OR: 1.133 and 95% CI: 1.024, 1.253].

CONCLUSIONS

It seems that development of health promotion programs to increase cues to action and positive beliefs toward PSA test uptake and also perceived treat about side effect of PCa could be beneficial to increase PSA test uptake.

Socio-cognitive determinants of colorectal cancer screening uptake: An application of intervention mapping approach

Background: Fecal occult blood test (FOBT) is one of the common screening tests for colorectal cancer. This study was designed to determine the socio-cognitive determinants related to FOBT uptake for colorectal cancer screening based on intervention mapping (IM).

Methods: A total of 500 individuals aged over 50 years were randomly selected to participate in this study in Kermanshah, Iran, in 2016. Data were collected by interviews based on a questionnaire and analyzed by SPSS16 using bivariate correlation, linear, and logistic regression models.

Results: Of the 500 respondents, 468 (93.6%) signed the consent form and voluntarily participated in the study. Almost 11.1% of the participants had a history of FOBT uptake. Socio-cognitive variables accounted for 38% of the variation in the outcome measure of the intention to uptake FOBT. Perceived self-efficacy (OR = 3.345 & 95% CI: 1.342, 8.339), perceived susceptibility (OR = 2.204& 95% CI: 1.320, 3.680), attitude (OR = 1.674& 95% CI: 1.270, 2.137), and perceived severity (OR = 1.457& 95% CI: 0.954, 2.224) were the strongest predictors of fecal occult blood test uptake.

Conclusion: IM-based analysis of behavior may provide insights to design interventions for modifying individuals’ beliefs about the usefulness of FOBT uptake to prevent colorectal cancer.

Using intervention mapping approach to finding socio-cognitive determinants of diabetes preventive behaviors

INTRODUCTION

Diabetes is one of the most common chronic illnesses with complications. The objective of this study was to determine socio-cognitive determinants of diabetes preventive behaviors among sample of at risk group based on intervention mapping approach (IM) in Kermanshah, the west of Iran.

METHODS

This cross-sectional study conducted among a total of 200 male and female aged more than 30 years old referred to health centers that randomly selected to participate voluntarily, during 2018. Participants filled out a self-report questionnaire. Data were analyzed by SPSS version 16 using bivariate correlations and linear regression at 95% significant level.

RESULTS

The mean age of respondents was 38.4 years [95% CI: 37.3, 39.4], ranged from 30 to 56 years. Socio-cognitive determinants were accounted for 40% of the variation in diabetes prevention behaviors F = 35.559, P < 0.001. As well as, perceived self-efficacy, perceived severity, and perceived barrier were the most influential predictors on diabetes preventive behaviors.

CONCLUSIONS

It seems that planning health promotion programs to reduce barrier to perform diabetes preventive behaviors and increase confidence towards ability to perform preventive behaviors, and seriousness about sides effect of diabetes may be usefulness of the results in order to promotion of diabetes preventive behaviors among at risk group.

The role of integrative model of behavioral prediction in voluntary counseling of individuals with sexual high-risk behavior

BACKGROUND

Voluntary counseling and testing (VCT) is one of the main efforts for the prevention of high-risk sexual behavior, including HIV/acquired immunodeficiency syndrome (AIDS). The aim of this study was to determine cognitive determinants related to voluntary counseling and HIV testing among Iranian adults based on the integrative model of behavioral prediction (IMBP).

MATERIALS AND METHODS

This cross-sectional study was conducted in 2018 among Iranian adults with high-risk sexual behaviors, including drug abuse and unprotected sex, in western Iran. A total of 300 adults were randomly selected to participate voluntarily in this study. Participants filled out a self-administered questionnaire, including the background data and IMBP constructs. Data were analyzed by SPSS version 21, using statistical treatments, such as bivariate correlations, Chi-square test, t-test, and logistic regression at a 95% significant level.

RESULTS

Almost 73.3% of the participants had a history of VCT. The highest probability of VCT use was in participants who were in high level of VCT skills (odds ratio: 9.635; 95% confidence interval [CI]: 3.255, 28.514]), following environmental constraints (odds ratio: 6.274; 95% CI: 2.166, 18.171). Furthermore, the IMBP constructs accounted for 85% of the variations in the outcome measure of the VCT use intention.

CONCLUSIONS

Based on the result, it appears that the design and implementation of educational programs to improve upon skills and environmental constraints toward VCT use among adults with high-risk behaviors could be useful to the promotion of VCT.

Information Needs Assessment among Parents of Children with Cancer

Background: Parents of children with leukemia should be receiving an extensive amount of information about the care of their child; the aim of this study was to determine the parents’ information needs of children with leukemia. Methods: A cross-sectional study design was used to describe medical, physical, mental and lifestyle information needs among parents of children with leukemia. 209 parents of children diagnosed with leukemia in the west of Iran, during winter 2018, voluntarily participated in individual interviews. Data were analyzed by SPSS version 16 using t-test, One-way ANOVA and bivariate correlations statistical tests at 95% significant level. Results: The mean age of participants was 39.45 years [95% CI: 38.35, 40.55], ranged from 27 to 58 years. Participants achieved 55.6% score of information needs. There was a significant relationship between higher education level (P< 0.001), better economic status (P=0.008) and more family size member (P=0.003) with information needs. Conclusion: Findings suggest that parents of children with leukemia need the information to learn how to take care of their childhood and could be useful for guiding implementers to planning and implement effective programs to promotion information of parents towards children with cancer.

Socio-cognitive determinants of safe road-crossing behaviors: an application of the prototype willingness model

Background:

Pedestrians are one of the most vulnerable groups of road users that potentially are at risk for road traffic injuries and deaths. The present paper reports an application of the Prototype Willingness Model (PWM) to the prediction of road-crossing behaviors among students from Kermanshah University of Medical Sciences (KUMS) in the west of Iran.

Methods:

This cross-sectional study was carried out among a sample of 315 medical students who were randomly selected from seven faculties of KUMS in 2017 according to their size, and who filled out a self-administered questionnaire containing a scenario depicting a potentially hazardous road-crossing behavior, followed by items measuring the PWM constructs. Data were analyzed by SPSS version 16 at 95% significant level.

Results:

The mean score of safe road-crossing behaviors was 9.57 [95% CI: 9.10, 10.05], ranging from 0 to 16. Attitude, subjective norms, and prototype accounted for 15% and 9% of the variation of willingness and intention, respectively. Willingness was a stronger predictor of the safe road-crossing behaviors (P less than 0.001). The road crossing behavior of female student pedestrian was safer than that of their male counterparts (P less than 0.035).

Conclusions:

The results have a number of implications. In particular, PWM-based interventions should focus on willingness in order to encourage safer road-crossing behavior among pedestrians.

Measuring Beliefs Related to Colorectal Cancer Screening Behavior among Iranian Middle-Aged and Elderly: a Psychometric Study

The annual fecal occult blood test is a very important method for colorectal cancer early detection through screening. Our aim was to assess psychometrics of instrument measuring beliefs related to fecal occult blood test uptake among Iranian middle-aged and elderly, based on the theory of planned behavior. This cross-sectional study was performed on 150 middle-aged and elderly who were randomly selected to participate voluntarily in Kermanshah, in the west of Iran. The studied constructs included attitude, subjective norms, perceived behavior control, and behavior intention. Data were analyzed with SPSS software (ver. 21.0). The mean age of the respondents was 59.1 years [SD: 6.73], in the range from 50 to 73. All of the loads of the exploratory factorial analysis were larger than 0.4. KMO was calculated as 0.756. Overall, four factors under investigation accounted for 82% of the variance in the hypothesized model. Cronbach’s alpha for the measured constructs of attitude, subjective norms, perceived behavior control, and behavior intention were 0.92, 0.88, 0.70 and 0.88, respectively. Our findings indicated the final scale to be adequately reliable and valid for measurement of these constructs for prediction of fecal occult blood test uptake among Iranian middle-aged and elderly.