Prevalence Of Tattoos Research Articles

Tattoos and Risk of Hematologic Cancer: A Population-Based Case-Control Study in Utah.

Approximately one-third of US adults have a tattoo, and the prevalence is increasing. Tattooing can result in long-term exposure to carcinogens and inflammatory and immune responses. We examined tattooing and risk of hematologic cancers in a population-based case-control study with 820 cases diagnosed 2019-2021 and 8200 frequency-matched controls, ages 18-79 years. We calculated odds ratios (OR) and 95% confidence intervals (CI) using multivariable-adjusted logistic regression models. The prevalence of tattooing was 22% among Hodgkin lymphoma (HL) cases, 11% among non-Hodgkin lymphoma (NHL) cases, 16% among myeloid neoplasm cases, and 15% among controls. Though there were no clear patterns of associations between ever receiving a tattoo and risk of HL, NHL, or myeloid neoplasms overall, in analyses restricted to ages 20-60 years, ever receiving a tattoo (OR 2.06 [95% CI 1.01, 4.20]) and receiving a tattoo 10+ years prior (OR 2.64 [95% CI 1.23, 5.68]) were associated with an aggregated group of rarer mature B-cell NHLs. We also observed elevated risks for a 10+ year latency for myelodysplastic syndromes and chronic myeloid leukemia (OR 1.48 [95% CI 0.40, 5.41], and OR 1.24 [95% CI 0.45, 3.43], respectively). Though estimates were imprecise, we found some suggestive evidence that tattooing may be associated with an increased risk of certain hematologic cancer subtypes. With an estimated 46% prevalence of tattooing in US individuals ages 30-49, additional studies are needed to understand the degree to which these exposures may be associated with hematologic cancer risk.

Associations of demographic, health, and risk-taking behaviors with tattooing in a population-based cross-sectional study of ~18,000 US adults.

Little is known about current characteristics of individuals with tattoos. We quantified the prevalence of tattooing and associations of demographic, health, and risk-behavior factors with tattooing. We computed adjusted prevalence ratios (PR) of tattooing in a population-based analysis of > 18,000 Utah adults from the 2020-2021 Behavioral Risk Factor Surveillance System survey. The prevalence of tattooing was 26% among women and 22% among men, with the highest prevalence among women ages 25-29 (45%). Tattoo prevalence was higher among younger individuals, individuals with a lower education level, and those without religious affiliation. Tattoo prevalence was higher among indviduals with current tobacco (women: PR = 2.89 [95% confidence interval (CI): 2.60, 3.20]; men: 3.39 [2.98, 3.86]), e-cigarette (women: 2.44 [2.21, 2.69]; men: 2.64 [2.37, 2.94]), and heavy alcohol use (women: 2.16 [1.93, 2.43]; men: 1.89 [1.63, 2.19]). Tattoo prevalence was lower among individuals receiving a flu (women: 0.84 [0.76, 0.92]; men: 0.75 [0.67, 0.84]) or COVID-19 vaccine (women: 0.65 [0.54, 0.79]; men: 0.75 [0.61, 0.92]). Several risk-taking behaviors were associated with tattooing. Tattoo studios/conventions may present opportunities for partnership with tobacco cessation, alcohol reduction, and vaccination public health initiatives.

No effect of tattoos on local sweat concentrations of select cytokines, cortisol, glucose, blood urea nitrogen, or lactate during exercise

Due to growing interest in the investigation of exercise induced sweat biomarkers to assess an individual’s health and the increasing prevalence of tattoos in the world’s population, investigators sought to determine whether local sweat concentrations and excretion rates of epidermal growth factor (EGF), interleukin (IL) -1α, IL-6, IL-8, cortisol, glucose, blood urea nitrogen (BUN), and lactate differ between tattooed and contralateral non-tattooed skin during exercise. Sixteen recreational exercisers [female (50%)] (age = 25–48 years) with ≥ 1 unilateral permanent tattoo [median tattoo age = 6 years, IQR = 5] on the arm/torso completed an outdoor group fitness session. There were no significant differences between tattooed and non-tattooed skin for sweat EGF, IL-1α, IL-8, cortisol, glucose, BUN, or lactate concentrations. There were no significant differences between tattooed and non-tattooed skin for sweat EGF, IL-1α, IL-8, cortisol, glucose, BUN, or lactate excretion rate. Findings suggest that permanent tattoos older than 1 year may not impact local sweat EGF, IL-1α, IL-8, cortisol, glucose, BUN, and lactate concentrations or excretion rates during exercise.Clinical trial identifier NCT04920266 was registered on June 9, 2021.

Ecotoxicity, Health Risks and Contact Allergy Due to p-Phenylenediamine in Hair Dyes and Tattoos: Female Students' Perspectives.

While the financial advantages of hair coloring and tattooing are widely acknowledged, environmental hazards and health risks linked to this trend due to their p-phenylenediamine (PPD) content have received less attention.Health education on hair-dying products is warrantedto enhance the public's awareness of hair-dying ingredients and their side effects. A cross-sectional study was thereforeconducted with 319 students to assess knowledge of ecotoxicity, health risks, and practices of hair dyeing and tattooing among undergraduate students. A random sample of 59 students was checked for any allergic morphology in the scalp and exposed areas of skin near the neck, ears, palms, and nails. Responses collected were used for data analyses using IBMSPSSStatistics for Windows, Version 17 (Released 2008; IBM Corp., Armonk, New York, United States). Use of hair dye was significantly high among study participants 58.5% (n=187; p<0.05). However, their knowledge regarding the presence of PPD in hair dyes and associated environmental toxicity (37.8%, n=121) was very limited. The majority of participants did not do any allergy tests before applying hair dye (88.9%, n=283). The study revealed that the main reason for hair coloring was as a fashion statement (93.7%, n=299). Regarding tattooing practices, 96.9% (n=309) of study participants had never practiced tattoos, and hence, the prevalence of tattooing was 3.9% (n=12). These data confirmed that the practice of hair dyeing as a style statement was high among students. However, the majority were unaware of their PPD contentsand their potential ecotoxicity and health risks.

Tattoos as a risk factor for malignant lymphoma: a population-based case–control study

The popularity of tattoos has increased dramatically over the last few decades. Tattoo ink often contains carcinogenic chemicals, e.g., primary aromatic amines, polycyclic aromatic hydrocarbons, and metals. The tattooing process invokes an immunologic response that causes translocation of tattoo ink from the injection site. Deposition of tattoo pigment in lymph nodes has been confirmed but the long-term health effects remain unexplored. We used Swedish National Authority Registers with full population coverage to investigate the association between tattoo exposure and overall malignant lymphoma as well as lymphoma subtypes. We performed a case-control study where we identified all incident cases of malignant lymphoma diagnosed between 2007 and 2017 in individuals aged 20-60 years in the Swedish National Cancer Register. Three random age- and sex-matched controls per case were sampled from the Total Population Register using incidence density sampling. We assessed exposure through a questionnaire in 2021, and data on potential confounders were retrieved from registers. We used multivariable logistic regression to estimate the incidence rate ratio (IRR) of malignant lymphoma in tattooed individuals. The study population consisted of 11,905 individuals, and the response rate was 54% among cases (n=1398) and 47% among controls (n=4193). The tattoo prevalence was 21% among cases and 18% among controls. Tattooed individuals had a higher adjusted risk of overall lymphoma (IRR=1.21; 95% CI 0.99-1.48). The risk of lymphoma was highest in individuals with less than two years between their first tattoo and the index year (IRR=1.81; 95% CI 1.03-3.20). The risk decreased with intermediate exposure duration (three to ten years) but increased again in individuals who received their first tattoo ≥11 years before the index year (IRR=1.19; 95% CI 0.94-1.50). We found no evidence of increasing risk with a larger area of total tattooed body surface. The risk associated with tattoo exposure seemed to be highest for diffuse large B-cell lymphoma (IRR 1.30; 95% CI 0.99-1.71) and follicular lymphoma (IRR 1.29; 95% CI 0.92-1.82). Our findings suggested that tattoo exposure was associated with an increased risk of malignant lymphoma. More epidemiologic research is urgently needed to establish causality. The Swedish Research Council for Health, Working Life and Welfare.

Abstract 2209: Tattooing and risk of melanoma: A population-based case-control study in Utah

Abstract Background: Carcinogens have been observed in many tattoo inks which can form new carcinogenic compounds when exposed to ultraviolet radiation and can accumulate in the lymph nodes and other organs. Tattooing can result in short- and long-term inflammatory and immune responses. At least 38 cases of melanoma have been reported in tattoos. The incidence of melanoma in Utah is the highest in the U.S., and potentially modifiable risk factors are of public health interest. In this study, we evaluated associations between tattooing and melanoma risk. Methods: We utilized a population-based case-control study of 514 incident in situ (284 men and 230 women) and 534 invasive (285 men and 249 women) melanoma cases diagnosed in Utah between 2020-2021. Controls (n=5,240) were selected from respondents to the Utah Behavioral Risk Factor Surveillance System (BRFSS) survey and frequency matched to cases in a 5:1 ratio on sex, age, race, and ethnicity. We fit logistic regression models to compute odds ratios (ORs) and 95% confidence intervals (CIs) associating ever tattooing with in situ and invasive melanoma risk, adjusting for age, education level, race, and ethnicity, separately for women and men. We then fit logistic models stratified by education level (&amp;lt; four-year college degree/four-year college degree or more) and models stratified by age (&amp;lt; 50 years/50+ years), separately for women and men. Results: Among men, the prevalence of tattooing was 7% for both in situ and invasive cases, and 11% for controls. Among women, tattooing prevalence was 20% for in situ cases, 15% for invasive cases, and 18% for controls. Ever tattooing was associated with decreased invasive melanoma risk among men (OR=0.62 [95% CI: 0.37-1.02]), particularly among those who had less than a four-year college degree (0.52 [0.28-0.99]), and among ages 50+ (0.36 [0.16-0.84]). Among men, the OR for ever tattooing and in situ melanoma was in the same direction as invasive melanoma, but the estimate was statistically imprecise (0.73 [0.45-1.19]). Among women, we did not observe an association between ever tattooing and invasive melanoma (0.83 [0.56-1.20]), while the association between ever tattooing and in situ melanoma was statistically imprecise (1.25 [0.87-1.80]). However, ever tattooing was associated with a nearly two-fold increased risk of in situ melanoma among women with a four-year college degree (1.98 [1.21-3.26]), but not for those without a college degree (0.89 [0.52-1.50]). Conclusion: These findings do not suggest that there is an association between tattooing and melanoma. Associations between tattooing and health-seeking behaviors, which may vary by sex and other demographic factors, may influence associations with melanoma diagnosis, particularly for in situ melanoma. This study is the first step in investigating whether reported cases of melanoma arising in tattoos are coincidental or whether tattoos may be associated with an increased risk of melanoma. Citation Format: Rachel D. McCarty, Britton Trabert, Morgan M. Millar, David Kriebel, Laurie Grieshober, Mollie E. Barnard, Lindsay J. Collin, Katherine A. Lawson-Michod, Jeffrey A. Gilreath, Douglas Grossman, John Hyngstrom, Paul J. Shami, Jennifer A. Doherty. Tattooing and risk of melanoma: A population-based case-control study in Utah [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2024; Part 1 (Regular Abstracts); 2024 Apr 5-10; San Diego, CA. Philadelphia (PA): AACR; Cancer Res 2024;84(6_Suppl):Abstract nr 2209.

Sun protection and sun exposure habits among tattooed individuals

AbstractBackgroundLittle is known about sun‐exposure and sun‐protection behaviors among tattooed individuals.ObjectivesThis study sought to investigate the sun‐exposure and sun‐protective habits among tattooed individuals.MethodsPopulation‐based study using a representative sample of the general population aged ≥18 years from four countries (Brazil, China, Russia and United‐States). All participants were asked to fill in a digital structured questionnaire. We inquired about socio‐demographics, self‐evaluation of their skin phototype (from I to VI), tattoo(s) and sun‐exposure and sun‐protection habits.ResultsA total of 9031 adult participants responded to the questionnaire of whom 1682 (18.6%) had ≥ 1 tattoo(s). The prevalence of tattoos was significantly higher among individuals with lighter skin tone (phototype I to III, 20.2%) compared to those with darker one (phototype IV to VI, 13.9%, p&lt;0.001). Almost 20% percent of the tattooed individuals acknowledged heavy lifestyle sun‐exposure compared to 11% of those without tattoos (p&lt;0.001). Multinomial analyses showed that Brazilians and those having ≥ 1 tattoo were more likely to have intermediate and intense lifestyle sun‐exposure. Tattooed individuals were more likely to report that they used regular or occasional sun‐protection methods than non‐tattooed individuals (p &lt; 0.001 and 0.016 respectively). Multinomial analyses for regular sun‐protection methods showed significant association with respondents from Brazil and those having one tattoo, but not more than one tattoo. Limitations include mainly that this is a questionnaire‐based study and and we lack of questions about sunburns and skin cancers.ConclusionsThis large population‐based study shows that tattooed individuals do have a heavily sun‐exposed lifestyle but, at the same time, display sun‐protection habits.

Tattoo-Associated Skin Reactions: A Danish Population-Based Survey in 5,914 Tattooed Individuals

Background: In Europe, Australia, and the USA, the estimated overall prevalence of tattooing is around 10–20%. Tattoo ink often comprises harmful chemicals and epidemiological studies on adverse effects of tattoos are lacking. Objectives: We aimed to estimate the prevalence of tattoo-associated skin reactions in the general Danish population and describe individuals with tattoo-associated skin reactions by socio-demographic factors and tattoo characteristics. Methods: The study was based on respondents aged 16 years or older from a population-based 2021 survey entitled “How are you?” conducted in the Central Denmark Region (n = 33,925). Logistic regression was used to characterise individuals with tattoo-associated skin reactions by socio-demographic factors (gender, age, educational level, and ethnic background). Also, the relationship between size, age and colour of the tattoo, and tattoo-associated skin reactions was studied. Model 1 was adjusted for all socio-demographic variables (gender, age, educational level, and ethnic background); model 2, for all socio-demographic variables and tattoo characteristics (size, age, and colour). Results: In total, 21.1% reported that they had at least one tattoo, 10.2% hereof reported that they had experienced tattoo-associated skin reactions (itching, pain, inflammation, and swelling) beyond the first 3 weeks after the tattoo was made. Lower age (16–44 years) (adjusted odds ratio (AOR) ≥1.75), larger tattoos (AOR ≥1.61) and having had tattoos for more than 10 years (AOR = 2.92, 95% confidence interval 1.45–5.88) increased the odds of tattoo-associated skin reactions. In general, tattooed individuals with colours other than black had higher odds of tattoo-associated skin reactions. Conclusion: Among participants with at least one tattoo, 10.2% had experienced tattoo-associated skin reactions beyond the first 3 weeks after their tattoo was made. This finding highlights the need for safer tattoo inks to prevent the adverse health problems experienced by many individuals with tattoos.

Think Before You Ink: Perception, Prevalence, and Correlates of Tattooing and Tattoo Regret in US Adults.

Introduction Few population-based studies have examined the perception and prevalence of tattoos and tattoo regret in the general United States (US) adult population. Our objective was to report the perception of people with tattoos and describe the prevalence, socio-demographics, health-related quality of life, and the extent of tattoo regret in US adults. Methods Data were assessed from a cross-sectional study of US adults. Participants were recruited using a random stratified sampling framework similar to the US Census. Data collected for all participants included socio-demographic and clinical characteristics, general health-related quality of life (Veterans RAND 12-item), depression (Patient Health Questionnaire 9-item), anxiety (Generalized Anxiety Disorder 7-item), and perceptions of those with tattoos. Those with tattoos also answered questions about their tattoo(s), including age when first tattooed, reasons for getting a tattoo, and tattoo regret. Categorical data were described by percentages, and continuous data by mean and standard deviation. Proportions were compared with Chi-squared testsand the means with ANOVA. A logistic regression controlling for confounding variables was carried out to assess factors predictive of tattoo regret. Results Of the 3033 participants, 35.3% (1,072) reported having a tattoo. Those more likely to have a tattoo were female (58% vs. 45%), younger (38 vs. 46 years), smoked cigarettes (38% vs. 19% non-smoker), and/or reported analcohol or drug problem (10% vs. 5%). Those without tattoos were more likely to perceive those with tattoos as less attractive, intelligent, professional, and more rebellious. More time (in years) with a tattoo, having a tattoo on the face, neck, hands, wrist, or fingers, getting a tattoo because of peer pressure, being impaired when getting a tattoo, and experiencing an adverse event related to a tattoo were predictive of tattoo regret. Older age and remembrance as the reason for a tattoo were predictive of not having tattoo regret. Conclusion More than one-third of the studysample comprised of adults in the US reported having at least one tattoo. While most people, regardless of their tattoo status, perceived tattooed and non-tattooed individuals equally, tattooed individuals were more likely to be perceived negatively than positively by those without tattoos. Whether tattooed or not, being aware of varying perceptions of tattoo status may be helpful in facilitating positive outcomes.

Cohort profile: The Swedish Tattoo and Body Modifications Cohort (TABOO)

PurposeThe Swedish Tattoo and Body Modifications Cohort (TABOO) cohort was established to provide an infrastructure for epidemiological studies researching the role of tattoos and other body modifications as risk factors...

Trends in Tattoo-Related Google Search Data in the United States: Time-Series Analysis.

Tattoos are becoming increasingly common in the United States. However, little information is available to help clinicians anticipate where, when, and on what topics patients will seek guidance regarding tattoo care, complications, and removal. The aim of this study was to model web searches concerning general interest in tattoo application, tattoo removal, and the geolocation of tattooing services. Relative search volumes (RSVs) were elicited from Google Trends, filtered to web searches made in the United States between January 15, 2008, and October 15, 2022. Longitudinal data were analyzed in GraphPad Prism and geospatial data were visualized with Datawrapper for general interest searches (tattoo and tattoo removal), aggregated geolocating searches (eg, tattoo shops near me), and symptomatic searches relating to adverse effects (eg, itchy tattoo). Results were compared to previous global literature and national surveys of tattoo prevalence. In the United States, the search terms tattoo and tattoo removal have experienced stable RSVs over the past 14 years, with both showing peaks in the summer and troughs in the winter. RSVs for search terms that geolocate tattooing services have experienced a general increase in use since 2008. A compilation of results for all collated geolocating search terms localized these searches mainly to the American South, with lesser involvement in the eastern Midwest and inland West. Increased search interest in the Southeast at the expense of more populous coastal states and Great Plains or western Midwest states reflects the ongoing harmonization of tattoo prevalence across regions, as shown by national surveys. Searches for symptoms related to adverse reactions to tattooing experienced an increase over the period of interest, with the same distribution as previous global findings. Clinicians should be aware of an increase in search interest regarding tattoos and their removal, especially during the summer months in the Southeast and Midwest. This increase in interest is occurring together with increased tattoo prevalence and increased search interest for adverse reactions in a country lagging behind in tattoo ink regulation.

Visible tattoos among referees in four European football leagues during the 2021–2022 season

Visible tattoos among referees in four European football leagues during the 2021–2022 season

Assessing infection prevention and control (IPAC) knowledge of tattoo artists of British Columbia

Tattooing has become very popular in the past 30 years. The prevalence of tattoos has increased such that approximately twenty percent of Canadians have at least one tattoo. The Personal Services Establishments (PSEs) industry in BC lacks stringent regulations. Tattoo studios are a significant part of the PSEs industry. Tattooing includes invasive procedures and as such, has the potential for spreading many types of infections. Proper Infection Prevention and Control (IPAC) procedures are required to minimize the risk of infections. The British Columbia Ministry of Health (MoH) guidelines for PSEs provide direction for IPAC, however, these guidelines are not enforceable by Environmental Health Officers. Therefore, the IPAC knowledge of tattoo artists in the absence of stringent regulations and its relationship with various other factors should be assessed to gauge any deficits in knowledge and identify opportunities for education.

Exploratory evaluation of tolerability, performance, and cosmetic acceptance of dexpanthenol-containing dermo-cosmetic wash and sun-care products for tattoo aftercare.

Background and AimsTattoo prevalence has significantly increased over the last decades. Proper tattoo aftercare, such as cleansing, moisturizing, and protection against sunlight, is essential to prevent complications and to keep the beauty of the tattoo. The tolerability, performance, and cosmetic acceptability of two dexpanthenol‐containing dermo‐cosmetic products, a wash and a sun‐care, were investigated on tattooed skin in two separate trials.MethodsTwo single‐center, exploratory, open‐label cosmetic studies were conducted between August and November 2020 to evaluate the dexpanthenol‐containing dermo‐cosmetic products. In the first study, healthy adults applied the 2.5% dexpanthenol‐containing wash right after their tattoo session daily for 14 consecutive days. In the second study, healthy adults applied the 2.5% dexpanthenol‐containing sun‐care sun protection factor 50+ cream on existing tattoos that were daily exposed to sunlight for 28 consecutive days. Clinical examination by a dermatologist and self‐assessment through subject questionnaires were used to assess the tolerability, acceptance, ease of use, and cosmetic outcomes of both products. Additionally, transepidermal water loss and moisturization assessments were performed to evaluate skin hydration after use of the sun‐care product.ResultsBoth study products were well tolerated, and no product related adverse events were reported during the studies. At least 90% of the study participants appreciated the performance of the dexpanthenol‐containing wash and sun‐care product, including moisturizing properties, relief of unpleasant sensations, and preservation of the cosmetic appearance of the tattoo. For the sun‐care, it was shown that its application supported maintaining the skin barrier of tattooed skin, while keeping it hydrated.ConclusionThe 2.5% dexpanthenol‐containing wash and sun‐care products are well tolerated and appreciated by tattooed subjects. Hence, they represent valid options for tattoo aftercare in line with current recommendations and practice.

Got ink, get paid? Exploring the impact of tattoo visibility on crowdfunding performance

Tattoos reflect an increasingly popular form of creative self-expression and there is an increased prevalence of tattoos among entrepreneurs engaging in crowdfunding. As such, our study is the first to explore how visible displays of tattoos within crowdfunding campaigns relate to campaign performance. Using a creativity perspective, we examine how displaying tattoos differentially impacts two key measures of crowdfunding performance: numbers of backers and funds pledged. We analyze a sample of 1500 crowdfunding campaigns from Kickstarter, and find a positive relationship between visible displays of tattoos and crowdfunding performance. We move the conversation regarding the impact of body art beyond non-entrepreneurial contexts by providing evidence that tattoo visibility does not hinder an entrepreneur's efforts to raise funds for their venture.

Распространенность татуировок среди учащихся общеобразовательных школ: социально-психологические аспекты

The article focuses on the following issues: the prevalence of tattoos among adolescents; gender and age characteristics of their motivation for tattooing; the specifics of social behavior of adolescents with tattoos; and the occurrence of tattoos among adolescents with deviant behavior. The sample consisted of 32714 students of grades 7—11, of which 1517 people confirmed having images on the body. The data was collected using an anonymous questionnaire survey. It is shown that with the transition from elementary school to high school the proportion of students with tattoos increases. At the same time, the intensity of familiarization with the tattoo culture in high school age among girls is higher than among boys. The article describes the value and motivational attitudes that determine the role of tattoos as a symbolic means of manifestation of a teenager’s attitude to sexual challenges. As it is revealed, in early adolescence the desire to get a tattoo is determined mainly by self-assertion and the search for group identity. By 9th grade, a tattoo is more often used to express individuality. In general, teenagers with tattoos have lower academic performance and are less likely to comply with school rules. Such abnormal behavior of teenagers with tattoos and their aspirations for social leadership cause bullying from classmates. It was found that deviant forms of behavior, such as profanity, alcohol and drug use, fighting, are much more common among students with tattoos. Tattoos are analyzed as a means of symbolic expression of belonging to a certain type of teenage subculture.

Fluctuating asymmetry of finger lengths, digit ratio (2D:4D), and tattoos: A pre-registered replication and extension of Koziel et al. (2010)

BackgroundTattoos bring risks yet no obvious evolutionary benefit. Koziel et al. (2010) reported increased fluctuating symmetry (a proxy for low developmental instability) in tattooed men, suggesting they could serve as fitness indicators. AimsWe replicate and extend the findings of Koziel et al. by examining fluctuating asymmetry of finger lengths and digit ratio (2D:4D) (a putative indicator of prenatal testosterone exposure) as predictors of adult tattoo prevalence. Study designWe used an online survey with a correlational design. SubjectsParticipants were recruited from the UK and Poland via university participant pools and social media. Data were available for presence/absence of tattoos and at least one predictor variable (composite Fluctuating Asymmetry [cFA], right-hand digit ratio [R2D:4D] and left-hand digit ratio [L2D:4D]) for n = 186 males and n = 997 females. Outcome measuresWe firstly assessed presence/absence of tattoos; when at least one tattoo was present, we also examined overall number and highest visibility. ResultsGreater cFA was associated with lower likelihood of having tattoos in males, though in females greater cFA was associated with higher numbers of tattoos. R2D:4D and L2D:4D correlated negatively with number of tattoos in males, and a positive correlation between L2D:4D and number of tattoos was observed in females. However, these latter findings did not remain significant after controlling for covariates. ConclusionsTattoos may act as fitness indicators in males, though this explanation appears not to extend to females. Prenatal testosterone may also play a role, though doubt is cast on this premise because 2D:4D effects did not remain statistically significant after controlling for covariates.

Tattooing among Iranian prisoners: results of the two national biobehavioral surveillance surveys in 2015–2016

BackgroundTattooing is among identified risk factor for blood-borne diseases. ObjectiveThis study aims to determine the prevalence of tattooing during lifetime and in prisons and its related factors among Iranian prisoners. MethodsThis is a cross-sectional study. The required data was obtained from hepatitis B and C surveillance surveys in prisons in 2015–2016 that was collected through face-to-face interview. 12,800 prisoners were selected by multi-stage random sampling from 55 prisons of 19 provinces in Iran. Weighted prevalence and associated factors (using Chi-Square test and multivariate logistic regression) were determined by Stata/SE 14.0 survey package. ResultsOut of 12,800 prisioners, 11,988 participated in the study (93.6% participation rate). The prevalence of tattooing in lifetime and in prisons was 44.7% and 31.1% respectively. The prevalence of tattooing during lifetime was significantly associated with age<35 years, being single, illiteracy, history of imprisonment, drug use, piercing during lifetime, extramarital sex and history of STI; the prevalence of tattooing in prison had a significant association with history of imprisonment, drug use, piercing in prison, and history of extramarital sex (p<0.05). Study limitationsInformation and selection bias was one of the study limitations. ConclusionThe results of this study showed that the prevalence of tattooing during lifetime and in prison among prisoners was significantly high especially in high-risk groups such as drug users and sexually active subjects. Given the role of tattooing, drug injection and sex in the transmission of blood-borne diseases, harm reduction programs are recommended to reduce these high-risk behaviors in prisons.

Self-reported tattoo prevalence and motivations in transgender adults: a cross-sectional survey

To assess the prevalence and motivations for obtaining tattoos among transgender persons. A survey of 696 transgender persons recruited from the Study of Transition, Outcomes, and Gender (STRONG) cohort evaluated the prevalence of tattoos and motivations for acquiring tattoos. Transmasculine persons were more likely than transfeminine persons to have tattoos (66.5% versus 24.0%, P&lt;0.05). Most commonly reported motivators were personal preference, aesthetics, and/or symbolism (61.8%). Scar coverage and replacement of anatomic features accounted for 10.2% of responses. Future studies should look into the relationship between tattoos and health status in the transgender population.

Recurrent lichenoid reaction to black tattoo ink: A case report and brief review of the literature.

Cutaneous reactions to tattoos are increasing as the prevalence of tattoos increases. Lichenoid reactions often occur in red tattoos and are usually localised to the tattoo. We present a case of recurrent lichenoid reaction occurring in both the black tattooed and adjacent non-tattooed skin.