scholarly journals Factors associated with elevated blood pressure or hypertension in Afro-Caribbean youth: a cross-sectional study

PeerJ ◽  
2018 ◽  
Vol 6 ◽  
pp. e4385 ◽  
Author(s):  
Trevor S. Ferguson ◽  
Novie O.M. Younger-Coleman ◽  
Marshall K. Tulloch-Reid ◽  
Nadia R. Bennett ◽  
Amanda E. Rousseau ◽  
...  

Background Although several studies have identified risk factors for high blood pressure (BP), data from Afro-Caribbean populations are limited. Additionally, less is known about how putative risk factors operate in young adults and how social factors influence the risk of high BP. In this study, we estimated the relative risk for elevated BP or hypertension (EBP/HTN), defined as BP ≥ 120/80 mmHg, among young adults with putative cardiovascular disease (CVD) risk factors in Jamaica and evaluated whether relative risks differed by sex. Methods Data from 898 young adults, 18–20 years old, were analysed. BP was measured with a mercury sphygmomanometer after participants had been seated for 5 min. Anthropometric measurements were obtained, and glucose, lipids and insulin measured from a fasting venous blood sample. Data on socioeconomic status (SES) were obtained via questionnaire. CVD risk factor status was defined using standard cut-points or the upper quintile of the distribution where the numbers meeting standard cut-points were small. Relative risks were estimated using odds ratios (OR) from logistic regression models. Results Prevalence of EBP/HTN was 30% among males and 13% among females (p < 0.001 for sex difference). There was evidence for sex interaction in the relationship between EBP/HTN and some of risk factors (obesity and household possessions), therefore we report sex-specific analyses. In multivariable logistic regression models, factors independently associated with EBP/HTN among men were obesity (OR 8.48, 95% CI [2.64–27.2], p < 0.001), and high glucose (OR 2.01, CI [1.20–3.37], p = 0.008), while high HOMA-IR did not achieve statistical significance (OR 2.08, CI [0.94–4.58], p = 0.069). In similar models for women, high triglycerides (OR 1.98, CI [1.03–3.81], p = 0.040) and high HOMA-IR (OR 2.07, CI [1.03–4.12], p = 0.039) were positively associated with EBP/HTN. Lower SES was also associated with higher odds for EBP/HTN (OR 4.63, CI [1.31–16.4], p = 0.017, for moderate vs. high household possessions; OR 2.61, CI [0.70–9.77], p = 0.154 for low vs. high household possessions). Alcohol consumption was associated with lower odds of EBP/HTN among females only; OR 0.41 (CI [0.18–0.90], p = 0.026) for drinking <1 time per week vs. never drinkers, and OR 0.28 (CI [0.11–0.76], p = 0.012) for drinking ≥3 times per week vs. never drinkers. Physical activity was inversely associated with EBP/HTN in both males and females. Conclusion Factors associated with EBP/HTN among Jamaican young adults include obesity, high glucose, high triglycerides and high HOMA-IR, with some significant differences by sex. Among women lower SES was positively associated with EBP/HTN, while moderate alcohol consumption was associated lower odds of EBP/HTN.

2003 ◽  
Vol 131 (1) ◽  
pp. 599-606 ◽  
Author(s):  
L. S. LEONTIDES ◽  
E. GRAFANAKIS ◽  
C. GENIGEORGIS

Blood samples were taken from 50 finishing pigs at 90–105 kg in each of 59 randomly selected farrow-to-finish herds. The sera were tested for antibodies to Salmonella enterica by the Danish mix-ELISA. Samples with an optical density of >10% were considered to be positive. Associations between the odds of seropositivity of pigs and possible risk factors were evaluated in multivariable logistic regression models. The results of the analysis indicated that pigs fed non-pelleted dry or wet ration had 11 (P=0·0004) or 9 (P=0·02) times, respectively, lower odds of seropositivity than those fed pelleted ration. The risk of seropositivity was 4 (P=0·0006) times higher in pigs fed a combination of chlortetracycline, procaine penicillin and sulphamethazine during fattening than in those fed an approved growth promotor or a probiotic.


Hypertension ◽  
2016 ◽  
Vol 68 (suppl_1) ◽  
Author(s):  
Trevor S Ferguson ◽  
Novie O Younger-Coleman ◽  
Marshall K Tulloch-Reid ◽  
Jennifer M Knight-Madden ◽  
Maureen E Samms-Vaughan ◽  
...  

Background: We aimed to estimate the relative risk for elevated blood pressure (BP ≥ 120/80 mmHg) for cardiovascular disease (CVD) risk factors among Afro-Caribbean youth in Jamaica and to evaluate the association between clustering of risk factors and elevated BP. Methods: We analysed data from 898 young adults, 18-20 years old (409 males; 489 females) from the Jamaica 1986 Birth Cohort Study. BP was measured with a mercury sphygmomanometer after the participant had been seated for 5 minutes. Anthropometric measurements were done and venous blood obtained to measure fasting glucose, lipids and insulin. Data on socioeconomic status (SES) were obtained via questionnaire. CVD risk factor status was defined using standard cut-points or the upper quintile of the distribution. Insulin resistance was estimated using the Homeostasis Model Assessment (HOMA-IR). Relative risks were computed using odds ratios (OR) from logistic regression models. Results: Prevalence of elevated BP was 30% among males and 13% among females (p<0.001). In multivariable logistic regression models, modifiable risk factors independently associated with elevated BP among males were: central obesity (OR 4.7, 95%CI 1.6 - 13.7), high glucose (OR 1.9, CI 1.1 - 3.1) and high HOMA-IR (OR 2.33, CI 1.1 - 5.1); among females associated factors were: high triglycerides (OR 2.2, CI 1.1 - 4.1), high HOMA-IR (OR 2.4, CI 1.1 - 5.0) and SES (OR 3.6, CI 1.03 - 12.8 [moderate vs high household possessions]; OR 1.87 CI 0.5 - 7.2 [low vs high]). Among males, having any one of central obesity, high glucose, high triglycerides or high HOMA-IR was associated with a two-fold increase in the odds of elevated BP, while having three or four factors was associated with a seven-fold increase in the odds. Among females, having any one of the four factors above was associated with two-fold higher odds, while having three or four factors was associated with a three-fold higher odds. Conclusion: Factors associated with elevated BP among Jamaican young adults include measures of obesity and insulin resistance, with significant differences by sex. Lower SES was associated with elevated BP among females. Clustering of risk factors was associated with markedly higher odds of elevated BP among males, but less so among females.


BMC Neurology ◽  
2020 ◽  
Vol 20 (1) ◽  
Author(s):  
Nan Zhang ◽  
Lin Zhang ◽  
Qiu Wang ◽  
Jingwei Zhao ◽  
Jia Liu ◽  
...  

Abstract Background Globally, rates of ischemic stroke (IS) have been rising among young adults. This study was designed to identify risk factors associated with IS incidence in young adults unaffected by hypertension or diabetes. Methods This was a retrospective case-control study of early-onset IS patients without diabetes and hypertension. Control patients were matched with healthy individuals based upon sex, age (±2 years), and BMI (±3 kg/m2) at a 1:3 ratio. Sociodemographic, clinical, and risk factor-related data pertaining to these patients was collected. The association between these risk factors and IS incidence was then assessed using conditional logistic regression models. Results We recruited 60 IS patients and 180 controls with mean ages of 44.37 ± 4.68 and 44.31 ± 4.71 years, respectively, for this study. Relative to controls, IS patients had significantly higher total cholesterol (TG), homocysteine (HCY), white blood cell (WBC), absolute neutrophil count (ANC), systolic blood pressure (SBP), and diastolic blood pressure (DBP) levels, and significantly lower high-density lipoprotein cholesterol (HDL-C) and triglyceride cholesterol (TC), free triiodothyronine (FT3), and free thyroxine (FT4) levels (all P < 0.05). After controlling for potential confounding factors, HCY and ANC were found to be significantly positively associated with IS incidence (OR 1.518, 95%CI 1.165–1.977, P = 0.002 and OR 2.418, 95%CI 1.061–5.511, P = 0.036, respectively), whereas HDL-C and FT3 levels were negatively correlated with IS incidence (OR 0.001, 95%CI 0.000–0.083, P = 0.003 and OR 0.053, 95%CI 0.008–0.326, P = 0.002, respectively). Conclusions In young non-diabetic and non-hypertensive patients, lower HDL-C and FT3 levels and higher HCY and ANC levels may be associated with an elevated risk of IS. Additional prospective studies of large patient cohorts will be essential to validate these findings.


2019 ◽  
Vol 100 (2) ◽  
pp. 151-172
Author(s):  
Eileen M. Ahlin

There is relatively little literature examining risk factors associated with sexual victimization among youth in custody. The current study explored whether risk of forced sexual victimization among youth in custody differs by gender or perpetrator. Using data from a sample of 8,659 youth who participated in the National Survey of Youth in Custody, multivariate logistic regression models were employed to investigate gender differences in risk factors associated with overall forced sexual victimization and staff-on-inmate and inmate-on-inmate forced sexual victimization. Findings suggest that gender differences are more pronounced when perpetrator type is considered.


2021 ◽  
Vol 39 (1) ◽  
pp. 13
Author(s):  
Arifin Budiman Nugraha ◽  
Umi Cahyaningsih ◽  
Etih Sudarnika

Cryptosporidial infection is one of the most common causes of diarrhea in humans and livestock worldwide. This study was conducted to estimate the prevalence of Cryptosporidium infection and to identify potential risk factors associated with shedding of oocysts in Bogor. A total of 308 faecal samples were collected from 136 calves less than 6 months, 44 from those 6-12 months and 128 from those than 12 months. Data of factors potentially associated with the likelihood of Cryptosporidium spp. infection were recorded (i.e., enviromental status, size of herd, and herd management). Cryptosporidium spp. oocyst was identified by using modified acid fast (Ziehl Neelsen) staining technique and microscopically examined under 400x magnifition. Results showed that the prevalence of cryptosporidiosis in Bogor was 21.1% (CI 95%; 16.5%-25.6%). The highest prevalence was 29% (CI 95%; 26.8%-31.7%) in cattle aged less than 6 months. The oocysts abundance were around <5 oocysts per microscopy visual area. Data was analyzed using logistic regression models.  Statistical analysis showed that there were association between cryptosporidiosis and calves aged less than 6 months with an odds ratio (OR) of 2.7 (CI 95%; 1.5-5.2) times compared with cattle aged more than 12 months.


2020 ◽  
Vol 13 (10) ◽  
pp. 2172-2177
Author(s):  
Nguyen Hoai Nam ◽  
Peerapol Sukon

Aim: The present study aimed to investigate the effects of different risk factors on stillbirth of piglets born from oxytocin-assisted parturitions. Materials and Methods: Data were collected from a total of 1121 piglets born from 74 Landrace x Yorkshire crossbred sows from a herd. Logistic regression models were used to determine the associations between stillbirth and different risk factors including parity (1, 2, 3-5, and 6-10), gestation length (GL) (112-113, 114-116, and 117-119 days), litter size, birth order (BO), sex, birth interval (BI), cumulative farrowing duration, birth weight (BW), crown rump length, BW deviation, body mass index, ponderal index (PI), and the use of oxytocin during expulsive stage of farrowing. Results: The incidence of stillbirth at litter level and stillbirth rate was 59.5% (44/74) and 8.1% (89/1094), respectively. The final multivariate logistic regression selected BO, BI, PI, GL, and parity as the five most significant risk factors for stillbirth. Increased BO and BI, GL <114 and >116 days, parity 6-10, and low PI increased the stillbirth rate in piglets. Conclusion: Several factors previously determined as risks for stillbirth in exogenous oxytocin-free parturitions also existed in exogenous oxytocin-assisted parturitions. One dose of oxytocin at fairly high BO did not increase stillbirth, whereas two doses of oxytocin were potentially associated with increased values.


2016 ◽  
Vol 26 (2) ◽  
pp. 153-157 ◽  
Author(s):  
Jamie Guillory ◽  
Nadra Lisha ◽  
Youn Ok Lee ◽  
Pamela M Ling

ObjectiveTo explore the prevalence and sociodemographic makeup of smokers who do not self-identify as smokers (ie, phantom smokers) compared with self-identifying smokers in a sample of bar-going young adults aged 18–30 years to more accurately assess young adult prevalence of smoking and inform cessation message targeting.MethodsCross-sectional surveys of smokers (n=3089) were conducted in randomly selected bars/nightclubs in seven US cities. Logistic regression models assessed associations between phantom smoking (past 30-day smoking and denial of being a smoker), tobacco and alcohol use behaviours (eg, social smoking, nicotine dependence, smoking while drinking, past 30-day alcohol use) and demographics.ResultsCompared with smokers, phantom smokers were more likely to be college graduates (OR=1.43, 95% CI 1.03 to 1.98) and to identify themselves as social smokers (OR=1.60, 95% CI 1.27 to 2.12). Phantom smokers had lower odds of smoking while drinking (OR=0.28, 95% CI 0.25 to 0.32), being nicotine dependent (OR=0.36, 95% CI 0.22 to 0.76) and having quit for at least 1 day in the last year (OR=0.46, 95% CI 0.36 to 0.69) compared with smokers.ConclusionsThis research extends phantom smoking literature on college students to provide a broader picture of phantom smoking among young adults in high-risk contexts and of varying levels of educational attainment. Phantom smokers may be particularly sensitive to social pressures against smoking, suggesting the importance of identifying smoking as a behaviour (rather than identity) in cessation messaging to ensure that phantom smokers are reached.


2021 ◽  
Vol 8 ◽  
Author(s):  
Yinong Chen ◽  
Chun Yin ◽  
Qing Li ◽  
Luyao Yu ◽  
Longyang Zhu ◽  
...  

Background: The value of aspirin for primary prevention continues to be debated. Data showing whether aspirin use for primary prevention adheres to established guidelines in real world practice are sparse.Methods: A total of 13,104 patients without cardiovascular diseases (CVD) were selected from the DYS-lipidemia International Study of China, a national survey of patients with dyslipidemia in 2012. The CVD risk of the participants were calculated using the 10-year risk of Ischemic Cardiovascular Diseases model. The misuse of aspirin for primary prevention was defined as having CVD risk &lt;10% with daily aspirin. Multivariate logistic regression models were used to explore risk factors associated with aspirin misuse.Results: The proportion of the patients categorized as low, moderate and high risk for CVD were 52.9, 21.6, and 25.4% respectively. The misuse frequency of aspirin was 31.0% (2,147/6,933) in patients with low risk. The misuse of aspirin increased with aging for both men and women. In the multivariate analysis, the independent risk factors associated with aspirin misuse were hypertension, diabetes mellitus, a family history of premature CVD, and elderly age. Level of total cholesterol is negatively associated with aspirin misuse. Patients from low level hospitals are more likely to be taking aspirin inappropriately. Results remained consistent after including 2,837 patients having 10-year risk for CVD between 10 and &lt;20%.Conclusion: The misuse of aspirin for primary prevention is common in patients having CVD risk &lt;10%. There are important opportunities to improve evidence-based aspirin use for the primary prevention of CVD in Chinese patients.Clinical Trial Registration:https://clinicaltrials.gov/, identifier [NCT01732952].


2020 ◽  
Vol 34 (4) ◽  
pp. 494-501
Author(s):  
Kyohei Itamura ◽  
Kevin Hur ◽  
Elisabeth Ference ◽  
Bozena Wrobel ◽  
Tamara N. Chambers

Background The urban homeless population has increased exposure to risk factors associated with chronic rhinosinusitis (CRS). However, a gap in knowledge of the prevalence of sinonasal symptoms in these demographic limits complete understanding of CRS epidemiology. There is a need to elucidate sinonasal disease burden in this vulnerable patient population to bring awareness to any existing disparities. Objective To assess the prevalence, severity, and associated factors of CRS clinical symptoms and health-care barriers in an urban homeless population. Methods Homeless adults completed a sociodemographic questionnaire and the 22-item Sinonasal Outcome Test (SNOT-22) and EuroQol-5 Dimension-3 Level-Visual Analog Scale surveys. Responses were categorized by potential CRS symptoms defined as reporting at least 2 CRS cardinal symptoms. Risk factors associated with potential CRS symptoms were analyzed with multivariate regression models. Results Fifty-six (16%) out of 341 total subjects reported potential CRS symptoms. Those with potential CRS symptoms had a higher median SNOT-22 score (53 vs 22, P < .001) than those without. Logistic regression models identified history of smoking (odds ratio [OR], 6.54; 95% confidence interval [CI], 2.04–21.04) and duration of homelessness over 3 months (OR, 3.46; CI, 1.51–7.94) as factors associated with potential CRS symptoms. Duration of homelessness over 3 months was associated with higher SNOT-22 scores (standardized beta coefficient [β], 0.48; CI, 0.39–0.57). Among those reporting 2 or more CRS cardinal symptoms, 18% had ever been seen by any physician for their symptoms. Conclusions Our study estimates a high prevalence of potential CRS symptoms in the urban homeless population. Longer duration of homelessness was associated with potential CRS symptoms and poor CRS-specific quality of life scores. Disparities in access to care emphasize the need for increased preventive efforts designed for this unique patient group.


2020 ◽  
Author(s):  
Nan Zhang ◽  
Lin Zhang ◽  
Qiu Wang ◽  
Jingwei Zhao ◽  
Jia Liu ◽  
...  

Abstract Background: Globally, rates of ischemic stroke (IS) have been rising among young adults. This study was designed to identify risk factors associated with IS incidence in young adults unaffected by hypertension or diabetes.Methods: This was a retrospective case-control study of early-onset IS patients without diabetes and hypertension. Control patients were matched with healthy individuals based upon sex, age (±2 years), and BMI (±3 kg/m2) at a 1:3 ratio. Sociodemographic, clinical, and risk factor-related data pertaining to these patients was collected. The association between these risk factors and IS incidence was then assessed using conditional logistic regression models.Results: We recruited 60 IS patients and 180 controls with mean ages of 44.37±4.68 and 44.31±4.71 years, respectively, for this study. Relative to controls, IS patients had significantly higher total cholesterol (TG), homocysteine (HCY), white blood cell (WBC), absolute neutrophil count (ANC), systolic blood pressure (SBP), and diastolic blood pressure (DBP) levels, and significantly lower high-density lipoprotein cholesterol (HDL-C) and triglyceride cholesterol (TC), free triiodothyronine (FT3), and free thyroxine (FT4) levels (all P< 0.05). After controlling for potential confounding factors, HCY and ANC were found to be significantly positively associated with IS incidence (OR 1.518, 95%CI 1.165-1.977, P= 0.002 and OR 2.418, 95%CI 1.061-5.511, P=0.036, respectively), whereas HDL-C and FT3 levels were negatively correlated with IS incidence (OR 0.001, 95%CI 0.000-0.083, P=0.003 and OR 0.053, 95%CI 0.008-0.326, P=0.002, respectively).Conclusion: In young non-diabetic and non-hypertensive patients, lower HDL-C and FT3 levels and higher HCY and ANC levels may be associated with an elevated risk of IS. Additional prospective studies of large patient cohorts will be essential to validate these findings.


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