Women with PCOS with obesity, cigarette smoking, dyslipidemia, hypertension, impaired glucose tolerance, and subclinical vascular disease are at risk, whereas those with metabolic syndrome and/or type 2 diabetes mellitus are at high risk for CVD. Body mass index, waist circumference, serum lipid/glucose, and blood pressure determinations are recommended for all women with PCOS, as is oral glucose tolerance testing in those with obesity, advanced age, personal history of gestational diabetes, or family history of type 2 diabetes mellitus. Mood disorder assessment is suggested in all PCOS patients. Lifestyle management is recommended for primary CVD prevention, targeting low-density and non-high-density lipoprotein cholesterol and adding insulin-sensitizing and other drugs if dyslipidemia or other risk factors persist.
The goal of the study was to compare cardiovascular heart disease risk factors in women with polycystic ovary syndrome (PCOS) and matched control subjects. Women with PCOS have risk factors, including anovulation, hyperandrogenism, and insulin resistance, that suggest a male coronary heart disease risk-factor profile. A total of 206 women with PCOS were recruited by using records from a large reproductive endocrinology practice. A clinical diagnosis of PCOS was made if there was a history of chronic anovulation in association with either clinical evidence of androgen excess (hirsutism) or if total testosterone level was > 2 nm/L or the luteinizing hormone/follicle-stimulating hormone ratio was greater than 2. The overall response rate for cases was 76%. A control population was obtained by using a combination of area voters' registration tapes and directories of households. A control subject was matched to each case subject by age +/- 5 years, race, and neighborhood. The response rate for recruitment of the first or second eligible control subject was 83.6%. The average age at initial interview was 35.9 +/- 7.4 years for case and 37.2 +/- 7.8 years for control subjects. Women with PCOS had significantly increased cardiovascular disease risk factors compared with control women. These included increases in body mass index, insulin, and triglyceride levels (P < .001), decreased total HDL and HDL2 levels (P < .01), and increased total cholesterol and fasting LDL levels, waist/hip ratio, and systolic blood pressure (P < .05).(ABSTRACT TRUNCATED AT 250 WORDS)
Hearing loss was extremely common in this population. Because many of the identified hearing loss risk factors are modifiable, some of the burden associated with hearing loss in older people should be preventable.
Unconventional gas drilling (UGD) has enabled extraordinarily rapid growth in the extraction of natural gas. Despite frequently expressed public concern, human health studies have not kept pace. We investigated the association of proximity to UGD in the Marcellus Shale formation and perinatal outcomes in a retrospective cohort study of 15,451 live births in Southwest Pennsylvania from 2007–2010. Mothers were categorized into exposure quartiles based on inverse distance weighted (IDW) well count; least exposed mothers (first quartile) had an IDW well count less than 0.87 wells per mile, while the most exposed (fourth quartile) had 6.00 wells or greater per mile. Multivariate linear (birth weight) or logistical (small for gestational age (SGA) and prematurity) regression analyses, accounting for differences in maternal and child risk factors, were performed. There was no significant association of proximity and density of UGD with prematurity. Comparison of the most to least exposed, however, revealed lower birth weight (3323 ± 558 vs 3344 ± 544 g) and a higher incidence of SGA (6.5 vs 4.8%, respectively; odds ratio: 1.34; 95% confidence interval: 1.10–1.63). While the clinical significance of the differences in birth weight among the exposure groups is unclear, the present findings further emphasize the need for larger studies, in regio-specific fashion, with more precise characterization of exposure over an extended period of time to evaluate the potential public health significance of UGD.
Women with polycystic ovary syndrome (PCOS) exhibit an adverse cardiovascular risk profile, characteristic of the metabolic cardiovascular syndrome (MCS). The aim of this study was to determine the prevalence of coronary artery (CAC) and aortic (AC) calcification among middle-aged PCOS cases and controls and to explore the relationship among calcification, MCS, and other cardiovascular risk factors assessed 9 yr earlier. This was a prospective study of 61 PCOS cases and 85 similarly aged controls screened in 1993-1994 for risk factors and reevaluated in 2001-2002. The main outcome measures were CAC and AC, measured by electron beam tomography. Women with PCOS had a higher prevalence of CAC (45.9% vs. 30.6%) and AC (68.9% vs. 55.3%) than controls. After adjustment for age and body mass index, PCOS was a significant predictor of CAC (odds ratio = 2.31; P = 0.049). PCOS subjects were also 4.4 times more likely to meet the criteria for MCS than controls. High-density lipoprotein cholesterol and insulin appeared to mediate the PCOS influence on CAC. Interestingly, total testosterone was an independent risk factor for AC in all subjects after controlling for PCOS, age, and body mass index (P = 0.034). We conclude that women with PCOS are at increased risk of MCS and demonstrate increased CAC and AC compared with controls. Components of MCS mediate the association between PCOS and CAC, independently of obesity.
Despite numerous studies of air pollution and adverse birth outcomes, few studies have investigated preeclampsia and gestational hypertension, two pregnancy disorders with serious consequences for both mother and infant. Relying on hospital birth records, we conducted a cohort study identifying 34,705 singleton births delivered at Magee-Women’s Hospital in Pittsburgh, PA between 1997 and 2002. Particle (<10 μm-PM10; <2.5 μm-PM2.5) and ozone (O3) exposure concentrations in the first trimester of pregnancy were estimated using the space–time ordinary Kriging interpolation method. We employed multiple logistic regression estimate associations between first trimester exposures and preeclampsia, gestational hypertension, preterm delivery, and small for gestational age (SGA) infants. PM2.5 and O3 exposures were associated with preeclampsia (adjusted OR = 1.15, 95 % CI = 0.96–1.39 per 4.0 μg/m3 increase in PM2.5; adjusted OR = 1.12, 95 % CI = 0.89–1.42 per 16.8 ppb increase in O3), gestational hypertension (for PM2.5 OR = 1.11, 95 % CI = 1.00–1.23; for O3 OR = 1.12, 95 % CI = 0.97–1.29), and preterm delivery (for PM2.5 ORs = 1.10, 95 % CI = 1.01–1.20; for O3 ORs = 1.23, 95 % CI = 1.01–1.50). Smaller 5–8 % increases in risk were also observed for PM10 with gestational hypertension and SGA, but not preeclampsia. Our data suggest that first trimester exposure to particles, mostly PM2.5, and ozone, may increase the risk of developing preeclampsia and gestational hypertension, as well as preterm delivery and SGA.
Objectives
To examine the association of cardiovascular disease (CVD) and its risk factors with age-associated hearing loss, in a cohort of older black and white adults.
Study Design
Cross-sectional cohort study
Setting
The Health, Aging, and Body Composition (Health ABC) study; A community-based cohort study of older adults from Pittsburgh, PA and Memphis TN.
Participants
2,049 well-functioning adults (mean age: 77.5 years; 37% black)
Measurements
Pure-tone audiometry and history of clinical CVD were obtained at the 4th annual follow-up visit. Pure-tone averages in decibels reflecting low frequencies (250, 500, and 1000 Hz) middle frequencies (500, 1000, and 2000 Hz) and high frequencies (2000, 4000, and 8000Hz) were calculated for each ear. CVD risk factors, aortic pulse-wave velocity, and ankle-arm index were obtained at the study baseline.
Results
In gender-stratified models, after adjustment for age, race, study site and occupational noise exposure, risk factors associated with poorer hearing sensitivity among men included higher triglyceride levels, higher resting heart rate and history of smoking. Among women, poorer hearing sensitivity was associated with higher BMI, higher resting heart rate, faster pulse-wave velocity, and low ankle-arm index.
Conclusion
Modifiable risk factors for CVD may play a role in the development of age-related hearing loss.
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