Bridge Population Research Articles

Structural damage detection based on convolutional neural networks and population of bridges

The CNN-based detection methods have been widely used in the field of structural health monitoring (SHM), however, they can only be used for individual structures under certain conditions; for the structures in-service, damage detection will be affected by a variety of external factors (unknown/uncertain load and geometric dimension, etc.). Therefore, in order to improve the applicability of the CNNs, their compatibility and robustness need to be thoroughly investigated. In this paper, a large number of random models were produced to establish a population of bridge structures, the damage features of the population were extracted by the CNN; subsequently, the CNN was applied to damage detection of the new randomly-created models. The results show that the best detection results (99.4% accuracy) can be obtained by using the acceleration signals as the CNN input. This demonstrates that the proposed method will expand the detection ability of the CNN beyond an individual structure.

Systemic reliability of bridge networks with mobile sensing‐based model updating for postevent transportation decisions

AbstractThis paper proposes the upscaling of conventional individual bridge health monitoring problems into urban regions and transportation networks via mobile and smart sensing techniques together with an innovative reconnaissance procedure. The paper associates structural failure probabilities with systemic features and proposes decision criteria to optimize postdisaster actions. Twenty bridges constituting transportation network infrastructure compose the testbed region and utilize smartphone accelerometers for dynamics characterization in a vibration‐based framework. In this framework, reconnaissance output serves for model development, and mobile sensor data enable finite element model updating. Structural reliability analyses merged in a chain setting generate the systemic behavior of cascaded bridge performance. Combining systemic reliability with transportation and health services demand, one can optimize the response strategies of the bridge population and strategize disaster‐related decisions in a postevent assessment setting. Based on a testbed region with remote access to nearby vicinities, 18 earthquake scenarios are conducted to visualize the optimal evacuation strategies on the network, taking systemic bridge performance into consideration. Cost‐free mobile sensing support adds one more fundamental information source for reducing the uncertainty of the models and, therefore, improves associated mitigation actions.

Performance of Aging Timber Bridges based on Field Tests and Deterioration Models

This study investigated the performance of timber trestle railroad bridges through field tests on aging open- and ballast-deck bridges. It also developed nonparametric deterioration models based on average time in condition rating (ATICR) and Kaplan–Meier (K-M) estimates to assess the performance of timber highway bridge components using National Bridge Inventory data. This study proposes ATICR-based deterioration models for predicting the condition of timber bridge components. Average service life of highway timber multibeam bridge components under routine maintenance without any reconstruction or rehabilitation was found to be 23 years for the decks, 26 years for the superstructures, and 27 years for the substructures. K-M estimate-based reliability models were developed for probabilistic prediction of bridge safety while accounting for partial information from incomplete bridge condition observations. Based on these models, the median survival year—the number of years for which 50% of the bridge population remains in its current condition without deterioration—was obtained as 10 years for the decks, 14 years for the superstructures, and 12 years for the substructures of timber multibeam bridges. The models also suggested there was an 80% chance the timber bridge components would remain in their current condition without deterioration to a lower condition for a minimum of 3 years. The analysis carried out in this study could help improve the management and maintenance of timber bridges that are currently in operation worldwide.

Men Who Pay For Sex: Prevalence and Sexual Health.

Men who pay for sex (MPS) are a vulnerable bridging population for spreading sexually transmitted infections (STI). However, their prevalence and sexual health are unknown in Germany. We analyzed data from 2336 men aged 18-75 years resident in Germany who completed the German Health and Sexuality Survey (GeSiD), a populationbased probability sample survey undertaken 2018-2019, using face-to-face interviews (participation rate: 30.2%). 26.9% (95% confidence interval [24.7; 29.2]) of all men reported ever paying for sex. On average, MPS had M = 19.9 [16.8; 22.9] lifetime sexual partners, among them M = 7.3 [5.3; 9.4] paid partners. MPS described their paid sex predominantly as vaginal intercourse in domestic brothels. Regarding socio - demographic characteristics, MPS differed from men not paying for sex (MNPS) in terms of age, immigration status, and sex education. Compared to MNPS, MPS reported significantly more HIV/STI risk-taking, including multiple sex partners in the past year (OR adjusted for age, immigration status, sex education; AOR 3.55) and STI diagnosis in the past 5 years (AOR 1.96) as well as more prevention behaviors (e.g., condom use in the past year: AOR 3.13). The prevalence of MPS suggests physicians should address the topic with their patients to protect and improve the sexual health of MPS and their paid and unpaid partners.

Understanding the epidemiological HIV risk factors and underlying risk context for youth residing in or originating from the Middle East and North Africa (MENA) region: A scoping review of the literature.

IntroductionHIV is the second leading cause of death among young people globally, and adolescents are the only group where HIV mortality is not declining. Middle East and North Africa (MENA) is one of few regions seeing rapid increase of HIV infections (31.0%) since 2001. MENA youth are at particular risk of HIV due to dearth of research and challenges in accessing services.ObjectiveThe purpose of this scoping review is to establish the epidemiological HIV risk factors and underlying risk context for youth residing in or originating from the MENA region.MethodsOnline database searches were conducted using combination of search terms. Screening 5,853 citations, published between 1990–2019 with age groups 16 to 29, resulted in 57 studies included across 18 MENA countries.Results‘Key populations’ engage in risky behaviors, including: overlapping risky behaviors among youth who inject drugs (PWID); lack of access to HIV testing, condomless sex, and multiple sex partners among young men who have sex with men (MSM); and high and overlapping risk behaviors among young sex workers. Challenges facing other youth groups and bridging populations include: peer pressure, inhibition about discussing sexual health, lack of credible sex education sources, low condom use, and lack of access to HIV protection/prevention services, especially testing.ConclusionPoor surveillance coupled with scarcity of rigorous studies limit what is known about epidemiology of HIV among youth in MENA. Homophobia, stigma around PWID, and illegal status of sex work promote non-disclosure of risk behaviors among youth and curtail serving this population.

The Risk of HIV/STDs Infection and Transmission Among Never-Married Male Migrants in China: Is Risk Attributable to Bachelorhood or Migration?

In the context of sex-ratio imbalance and rural-to-urban migration in China, never-married male migrants may become a vulnerable group as well as a bridge population that facilitates HIV/STDs transmission. It is still not clear, however, whether increased HIV/STDs transmission risk can be attributed to bachelorhood, migration, or both. This study identified the contributions of bachelorhood and migration to an increased risk of HIV/STDs infection, as well as the risk of HIV/STDs transmission across populations and regions. Data were from a cross-sectional questionnaire survey, in which 180 never-married non-migrant males in rural areas, 558 never-married male migrants, and 302 married male migrants in urban areas of China were interviewed in 2017. Results showed that never-married male migrants are more likely to engage in commercial sex and unsafe sex than never-married non-migrant males, and their likelihood of engaging in unsafe sex was also higher than married male migrants. Although never-married male migrants were less likely to have multiple sex partners than married male migrants, they were more likely to have multiple sex partners and sex partners from different regions than never-married non-migrant males. These findings indicate that both migration and bachelorhood increase the risk of HIV/STDs infection for never-married male migrants, and migration also increases the risk of HIV/STDs transmission across populations and regions.

Hidden electrostatic energy contributions define dynamic allosteric communications within p53 during molecular recognition

Molecular recognition is fundamental to transcription regulation. As a transcription factor, the tumor suppressor p53 has to recognize either specific DNA sequences or repressor protein partners. However, the molecular mechanism underlying the p53 conformational switch from the DNA-bound to repressor-bound states is not fully characterized. The highly charged nature of these interacting molecules prompted us to explore the nonbonded energy contributions behind molecular recognition of either a DNA or the repressor protein iASPP by p53 DNA binding domain (p53DBD), using molecular dynamics simulation followed by rigorous analyses of energy terms. Our results illuminate the allosteric pathway by which iASPP binding to p53 diminishes binding affinity between p53 and DNA. Even though the p53DBD uses a common framework of residues for recognizing both DNA and iASPP, a comparison of the electrostatics in the two p53DBD complexes revealed significant differences in residue-wise contributions to the electrostatic energy. We found that an electrostatic allosteric communication path exists in the presence of both substrates. It consists of evolutionarily conserved residues, from residue K120 of the binding loop L1 to a distal residue R213 of p53DBD. K120 is near the DNA in the p53DBD-DNA complex, whereas iASPP binding moves it away from its DNA binding position in the p53DBD-iASPP complex. The “energy hubs” (the residues show a higher degree of connectivity with other residues in the electrostatic networks) determined from the electrostatic network analysis established that this conformational change in K120 completely rewires the electrostatic network from K120 to R213, thereby impeding DNA binding. Furthermore, we found shifting populations of hydrogen bonds and salt bridges reduce pairwise electrostatic energies within p53DBD in its DNA-bound state.

Advanced corrosion-rate model for comprehensive seismic fragility assessment of chloride affected RC bridges located in the coastal region of india

In this study, a methodology is being proposed for performing seismic fragility analysis of corrosion affected bridges located in the coastal region of India. The study performed adopting this advanced corrosion rate model capturing nonlinearity that necessitates pitting corrosion as a realistic corrosion degradation mechanism rather than conventional uniform corrosion. With the application of advanced corrosion model, a distinct improvement over seismic fragility assessment achieved due to its capability to capture nonlinearity in the overall process of corrosion transport. The proposed model exhibits the corrosion rate accelerates after initial cracking of the concrete cover until at a phase, when severe cracking occurs leading to spalling of concrete. Based on the current degradation mechanism, the study estimates the capacity limit states of deteriorating reinforced concrete (RC) T-girder bridges as well as the impact of bridge degradation on the seismic response assessed using nonlinear time history analysis (NLTHA). However, the NLTHA of the finite element bridge models performed considering erraticism about material properties, geometries, ground motions and corrosion degradation parameters such that the uncertainties associated with the bridge population could be realistically taken into account as per the basic corrosion mechanism. Comparisons are drawn with respect to general and pitting corrosion as well as the adverse effect of pitting corrosion on the bridge service life has been identified. Thus, the output of the seismic fragility analysis would indicate some useful information in understanding the nonlinear crack growth of bridge vulnerability in marine environment, such that proper maintenance strategies could be framed for adequate safety of the highway infrastructure system for its enhanced design life.

Influence of bridge‐state energy on the electron transfer relaxation and dephasing rate in a donor‐bridge‐acceptor system

AbstractThe influence of the bridge‐state energy on the relaxation and dephasing rate of electron transfer in a donor‐bridge‐acceptor system coupling with an open dissipative environment is thoroughly discussed through the QAPUI (quasi‐adiabatic propagator path integral) method in this paper. By calculating the decay rates of the system from the population difference with time between the donor and acceptor with different bridge‐state energy, it is found that the relaxation rate of the system increases with the decreasing of the bridge energy, while the dephasing rate declines in the meantime, when the system‐bath coupling and environment temperature are kept unchanged. The variation trend of both relaxation rate and dephasing rate is consistent with the calculated results of the effective two‐state system, indicating that small reduction in energies of the bridge‐state does not affect the superexchange mechanism of the multiple bridged system. When the energies of the bridge‐state are reduced to cause the bridge population up to 20%, the superexchange mechanism still works quite well in our considered scenarios.

Pathogenic variability among Colletotrichum kahawae Waller & Bridge population from major coffee growing regions of Ethiopia

Pathogenic variability among Colletotrichum kahawae Waller & Bridge population from major coffee growing regions of Ethiopia

Longitudinal Analysis of HIV Risk and Substance Use Patterns for Men Who Have Sex With Men and Women and Men Who Have Sex With Men Only

Men who have sex with men and women (MSMW) experience discrimination from same-sex and heterosexual communities partially because of perceptions that they engage in high-risk sexual behavior, have elevated polysubstance use levels, and constitute an HIV bridge population. We used a longitudinal multivariate generalized linear mixed model comparing sexual risk and substance use patterns for men who have sex with men only (MSMO) with MSMW in the same cohort study. Data consisted of 771 men reporting 3,705 sexual partnerships from 2012 to 2017. For high-risk sexual behavior, multivariate results showed nonsignificant (p > .05) differences for partner number and commercial sex work and significantly less (p < .05) HIV prevalence and condomless anal sex. However, MSMW had significantly higher levels of hallucinogen and prescription opioid use as well as substance treatment histories. Only one HIV-positive MSMW had a transmittable viral load, negating the concept of MSMW being an HIV bridge population. Results indicate the need for additional longitudinal studies comparing MSMO and MSMW.

Who Are the Men Who Pay for Sex in Mozambique? Results from the National HIV/AIDS Indicator Survey 2015.

Mozambique has one of the highest burdens of HIV in the world, where the prevalence is estimated at 13.2% among adults aged 15-49 years. Men who pay for sex (MPS) are considered a bridging population for HIV infection. However, the characteristics of MPS in Mozambique are poorly understood. The objective of this study was to estimate the prevalence of paid sex among men 15-49years and investigate risk factors associated with paid sex. We analyzed data collected from 4724 men, aged 15-49years, as part of the 2015 Mozambique AIDS Indicator Survey. Chi-squared tests and logistic regression models accounting for survey design were used to assess the associations between paying for sex and demographic characteristics and the number of lifetime and recent sex partners, condom use at last sex, and self-reported sexually transmitted infection symptoms. The prevalence of paid sex in the last 12months was 10.4% (95% CI 9.0-12.1), with Cabo Delgado province having the highest prevalence (38.8%). MPS in the last 12months were most frequently between the ages of 20-24years (13.5%), not in a relationship (17.8%), had a primary education (11.9%), from poor households (14.0%), had more than three sexual partners excluding their spouse in the last 12months (44.7%), and self-reported a STI in the past 12months (44.2%). HIV prevalence was higher among men who ever paid for sex compared with men who did not (13.1% vs. 9.4%, p = .02). Men who reported 10+ lifetime partner (aOR 7.7; 95% CI 4.5-13.0; p < .001), from Cabo Delgado (aOR 4.0; 95% CI 2.2-7.4; p < .001), who reported STI symptoms in the past 12months (aOR 2.7; 95% CI 1.7-4.2; p < .001), and HIV positive (aOR 1.6; 95% CI 1.0-3.7; p = .05) were more likely to have paid for sex in the last 12months. These findings present the HIV prevalence among Mozambican MPS and highlight the need for a comprehensive behavioral, structural, and biomedical approach to interventions to reduce the risks of commercial and transactional sex.

Factors Influencing Utilization of HIV Testing Services among Boda-Boda Riders in Kabarole District, Southwestern Uganda: A Cross-Sectional Study.

Background HIV testing is an important step for entry and linkage into HIV care. Utilization of HIV testing services among transport workers may be challenging, because of the mobile nature of their jobs. We assessed utilization of HIV testing services and identified factors influencing the utilization of HIV testing services among motorcycle taxi (boda-boda) riders in Fort Portal Municipality, Kabarole District, Southwestern Uganda. Methods We conducted a cross-sectional study among boda-boda riders, aged 18 years and above, from July 15 to July 29, 2020. We recruited participants through simple random sampling. Data were captured using a self-administered questionnaire. Binary logistic regression was used to identify factors associated with utilization of HIV testing services. Results Of the 315 participants who received questionnaires, 305 (97%) responded. The mean age of the participants was 32 (±7.1) years and ranged from 18 to 55 years. Of the 305 participants, 238 reported having taken an HIV test and received results in the past 12 months, for an HIV testing utilization rate of 78.0% (95% CI: 73.0–82.6%). In multivariable analysis, participants who were less likely to utilize HIV testing services were those aged ≥30 years (aOR = 0.33; 95% CI: 0.16–0.70, P = 0.004) and those who had HIV-related stigma (aOR = 0.27; 95% CI: 0.08–0.88, P = 0.030). Participants who were more likely to utilize HIV testing services were those who knew HIV status of their primary partners (aOR = 4.23; 95% CI: 1.24–14.49, P = 0.022) and those who had good knowledge on HIV/AIDS (aOR = 3.94; 95% CI: 1.65–9.41, P = 0.002). Conclusions Utilization of HIV testing services among the boda-boda riders in Fort Portal Municipality, Southwestern Uganda, was high. More efforts should focus on targeting older boda-boda riders for HIV testing, reduction of HIV-related stigma, improving knowledge on HIV/AIDS, and encouraging communication and disclosure between partners, in order to consolidate the gains made in HIV testing services in this bridge population.

Methodological synthesis of Bayesian phylodynamics, HIV-TRACE, and GEE: HIV-1 transmission epidemiology in a racially/ethnically diverse Southern U.S. context

This study introduces an innovative methodological approach to identify potential drivers of structuring HIV-1 transmission clustering patterns between different subpopulations in the culturally and racially/ethnically diverse context of Houston, TX, the largest city in the Southern United States. Using 6332 HIV-1 pol sequences from persons newly diagnosed with HIV during the period 2010–2018, we reconstructed HIV-1 transmission clusters, using the HIV-TRAnsmission Cluster Engine (HIV-TRACE); inferred demographic and risk parameters on HIV-1 transmission dynamics by jointly estimating viral transmission rates across racial/ethnic, age, and transmission risk groups; and modeled the degree of network connectivity by using generalized estimating equations (GEE). Our results indicate that Hispanics/Latinos are most vulnerable to the structure of transmission clusters and serve as a bridge population, acting as recipients of transmissions from Whites (3.0 state changes/year) and from Blacks (2.6 state changes/year) as well as sources of transmissions to Whites (1.8 state changes/year) and to Blacks (1.2 state changes/year). There were high rates of transmission and high network connectivity between younger and older Hispanics/Latinos as well as between younger and older Blacks. Prevention and intervention efforts are needed for transmission clusters that involve younger racial/ethnic minorities, in particular Hispanic/Latino youth, to reduce onward transmission of HIV in Houston.

Sexual Practices and Misconceptions Regarding Condom Usage and Status of Voluntary HIV Testing among Truck Drivers Employed in Transport Sector of Haryana- A Cross-sectional Study

Introduction: Truck drivers serve as a bridge population between high risk group and general population. Their nature of job demands travelling for days which compromises their lifestyle and health needs. Aim: To describe the sexual practices and misconceptions regarding condom usage and the status of voluntary Human Immunodeficiency Virus (HIV) testing among truck drivers and helpers. Materials and Methods: This was a cross-sectional study conducted during a health screening camp, conducted by team from a tertiary care centre of district Faridabad among truck drivers employed in a transport company. All the participants were interviewed by a trained counsellor using a structured, closed ended questionnaire. Data was analysed by using SPSS version 21. Fischer’s-exact and Chi-square tests were applied to test differences in proportions. Student t-test was applied to test the differences in mean between two groups. A p-value &lt;0.05 was considered statistically significant. Results: Total 117 male truck drivers and helpers participated in the study, of which 87.2% were sexually active with condom usage rate of 41.2%. Majority of the sexually active participants (92.8%) had more than one sexual partner in the last year. Condom usage was significantly higher among those having multiple partners than single partner (p&lt;0.001). Having sex with wife (36.4%) and preferred sex without condom (21.1%) were two major reasons elicited for non-usage of condoms. Almost half (46.2%) preferred to buy condoms from chemist shop. Only 14.7% of all the sexually active participants were ever tested for HIV. Conclusion: Truck drivers with multiple sexual partners were prevalent; however, usage of condoms was high among them.

Heterogeneity and Confinement of HIV Prevalence among Pregnant Women Calls for Decentralized HIV Interventions: Analysis of Data from Three Rounds of HIV Sentinel Surveillance in Karnataka: 2013-2017.

Background:The HIV sentinel surveillance (HSS) serves to estimate the levels and trend of HIV prevalence among high-risk, bridge, and general population and monitors HIV management at national, state, and district levels. Data from HSS are valuable in understanding the risk factors associated with HIV transmission with particular demographic characteristics.Objectives:The objective was to analyze the sociodemographic profile of the pregnant mothers attending the antenatal care (ANC) clinics in Karnataka, in order to understand the dynamics of HIV within the general population in Karnataka.Materials and Methods:Study design: this was a cross-sectional study conducted using consecutive sampling method. Study setting: the surveillance was conducted at select antenatal clinics, in Karnataka, India, between January and March, in the years 2013, 2015, and 2017. Methodology: in total, 74,278 eligible pregnant women aged between 15 and 49 years, attending the sentinel sites for the first time during the surveillance period, were included in the study. Information on their sociodemographic characteristics and blood samples was collected.Results:HIV prevalence among the ANC clinic attendees has significantly declined, reaching a recent stabilization. The risk factors significantly associated with HIV among pregnant women were age, education, occupation, and marital status. HIV is highly concentrated in the northern and southern districts of Karnataka.Conclusion:Despite the declining trends of HIV prevalence in Karnataka, the epidemic is heterogeneous and concentrated within the state, calling for decentralized region-specific interventions.

Awareness of and barriers to using non-occupational post-exposure prophylaxis among male clients of female sex workers in two cities of China: a qualitative study.

We conducted semi-structured in-depth interviews with 20 clients in two Chinese cities in 2018. Participants were recruited through purposive sampling. The content of the interviews was analysed using thematic content analysis in ATLAS.ti. Overall, just a minority of participants were aware of nPEP. A majority expressed willingness to use nPEP. Potential barriers to nPEP uptake and adherence included adverse drug reactions, price, concerns of drug efficacy, privacy issues, and forgetting to take the drugs. Almost all participants expressed the need to promote nPEP among clients. Participants suggested that the promotion of nPEP should be at hospitals, online, and be integrated with HIV/AIDS health education. Our findings suggested that nPEP guidelines should be formulated and implementation strategies should be developed to address barriers to uptake and adherence in order to successfully tap into the potential of nPEP as an effective HIV prevention tool.

Aripiprazole Lauroxil Dosing Regimens: Understanding Dosage Strengths and Injection Intervals.

Aripiprazole lauroxil (AL) is a long-acting atypical antipsychotic approved for the treatment of schizophrenia in adults. AL has five regimen options that offer three different injection intervals using four different dosage strengths. The relationship between dosage strength (milligram injected), injection interval (time between injection visits), and expected steady-state plasma aripiprazole concentrations may not be readily apparent. This article illustrates the relationship by providing visual scenarios of steady-state plasma aripiprazole concentrations for the five AL regimens. The efficacy of AL was originally demonstrated in a pivotal study of two AL regimens (approved as 441mg monthly and 882mg monthly). The three additional regimens (662mg monthly, 882mg every 6weeks, and 1064mg every 2months) were approved based on pharmacokinetic bridging studies and population pharmacokinetic models. For this paper, expected steady-state concentrations for each AL regimen were derived from the published population pharmacokinetic models and compared using median values and ranges. The five labeled AL regimens differ in dosage strength and injection interval; however, model-simulated concentrations illustrate that each regimen produces steady-state plasma aripiprazole concentrations within the upper and lower bounds associated with known efficacy for AL 441mg and 882mg administered monthly. This visual presentation of the relationship between dosage strength of the AL injection, the interval between successive injections, and steady-state aripiprazole plasma concentrations may demonstrate for clinicians how dosage strength and injection interval can be considered in selecting the AL regimen option that best fits the clinical circumstances of the individual patient.

A portable monitoring approach using cameras and computer vision for bridge load rating in smart cities

Smart structures require novel, efficient, and effective technologies for their safe operation and serviceability. This paper presents a novel, practical, cost-effective, and field test-based methodology using portable cameras and computer vision technologies to identify the lateral live load distribution factors for the existing highway bridges to perform load rating. By using a computer vision-based measurement method and traffic recognition, the girder deflection under live load can be monitored in a noncontact way and can be utilized to derive the load distribution. To verify the feasibility of the proposed approach, a comparative experimental study is conducted on a real-life pre-stressed concrete bridge with a set of conventional load tests and experiments in normal traffic. The results are compared with the conventional approach, such as simplified formulations recommended by AASHTO specifications, and the experimental method using the data from strain gauges and a calibrated finite element model (FEM). The comparative results show that the proposed approach can obtain very similar load distribution factors and bridge load rating factors both in a conventional load test and normal traffic. In comparison to the simplified formulation recommended by AASHTO specifications, the proposed approach can reflect the real-life structural properties and improve the load rating factor of AASHTO specifications by around 12%. In addition, as compared to the load-test-based approaches, such as using strain data and calibrated FEM, the proposed approach does not require traffic closure and a large amount of effort to deal with the load test and model updating. The bridge studied in this paper represents a very typical one from a large population of bridges that are part of the smart infrastructure. Such a practical approach will be practical and cost-effective for bridge load rating in smart cities.

Consistent condom use among men who pay for sex in sub-Saharan Africa: Empirical evidence from Demographic and Health Surveys.

Paying for sex has often been associated with risky sexual behavior among heterosexual men, and men who pay for sex are considered as a bridging population for sexually transmitted infections. Consistent condom use during paid sex is essential for reducing sexually transmitted infections, including HIV/AIDS. In this study, we assessed the prevalence and predictors of consistent condom use among men who pay for sex in sub-Saharan Africa. We pooled data from 29 sub-Saharan African countries' Demographic and Health Surveys. A total of 3,353 men in sub-Saharan Africa who had paid for sex in the last 12 months preceding the surveys and had complete information on all the variables of interest were used in this study. The outcome variable for the study was consistent condom use for every paid sex in the last 12 months. Both bivariate and multivariable logistic regression analyses were carried out. Results were presented as adjusted odds ratios with their corresponding 95% confidence intervals. Statistical significance was declared at p< 0.05. Overall, the prevalence of consistent condom use during paid sex in sub-Saharan Africa was 83.96% (CI = 80.35-87.56), ranging from 48.70% in Benin to 98% in Burkina Faso. Men aged 35-44 [AOR, 1.39 CI = 1.04-1.49], men in the richest wealth quintile [AOR, 1.96 CI = 1.30-3.00], men with secondary level of education [AOR, 1.69 CI = 1.17-2.44], and men in Burkina Faso [AOR = 67.59, CI = 8.72-523.9] had higher odds of consistent condom use during paid sex, compared to men aged 15-19, those in the poorest wealth quintile, those with no formal education, and men in Benin respectively. Conversely, Muslim men had lower odds [AOR = 0.71, CI = 0.53-0.95] of using condom consistently during paid sex, compared to Christian men. Empirical evidence from this study suggests that consistent condom use during paid sex encompasses complex social and demographic characteristics. The study also revealed that demographic characteristics such as age, wealth quintile, education, and religion were independently related to consistent condom use for paid sex among men. With sub-Saharan Africa having the highest sexual and reproductive health burden in the world, continuous application of evidence-based interventions (e.g., educational and entrepreneurial training) that account for behavioural and social vulnerabilities are required.