94 research outputs found
Processes with Long Memory: Regenerative Construction and Perfect Simulation
We present a perfect simulation algorithm for stationary processes indexed by
Z, with summable memory decay. Depending on the decay, we construct the process
on finite or semi-infinite intervals, explicitly from an i.i.d. uniform
sequence. Even though the process has infinite memory, its value at time 0
depends only on a finite, but random, number of these uniform variables. The
algorithm is based on a recent regenerative construction of these measures by
Ferrari, Maass, Mart{\'\i}nez and Ney. As applications, we discuss the perfect
simulation of binary autoregressions and Markov chains on the unit interval.Comment: 27 pages, one figure. Version accepted by Annals of Applied
Probability. Small changes with respect to version
Postmenopausal Symptoms in Female Veterans with Type 2 Diabetes: Glucose Control and Symptom Severity
Background: While type 2 diabetes mellitus (DM) is a common condition of midlife women, few studies have examined its influence on the symptom features of menopause. To explore this relationship, we conducted a study of symptom patterns of diabetic patients using a random sample of female veterans receiving care in the Veterans Affairs Healthcare system. Methods: A cross-sectional comparison was conducted with three groups of postmenopausal respondents (ages 45?60 years) to a mailed national survey who also consented to clinical data access: no diabetes (n=90), diabetes with better glucose control (hemoglobin A1c [HbA1c]≤7%, n=135) and diabetes with worse glucose control (HbA1c>7%, n=102). Results: Respondents, on average, were obese (body mass index: 33.9±0.4 kg/m2), 11.30±0.2 years postmenopause, with more than one chronic illness. Despite higher body mass index and increased comorbidities in women with diabetes compared with nondiabetic women, measures of mental health (anxiety, depressed mood, stress) were similar across groups. The pattern of menopause symptoms did not differ by group. Muscle aches/joint pain was the most prevalent symptom (78.6%), followed by vasomotor symptoms (74.4%). Respondents with elevated HbA1c demonstrated higher total menopausal symptom severity scores (DM-HbA1c>7: 15.4±0.8 vs. DM-HbA1c≤7%: 12.2±0.8 vs. No diabetes: 12.3±0.8; p=0.006) than the other two groups. Conclusions: In postmenopausal female veterans with diabetes, glucose control is associated with the severity of those symptoms commonly attributed to menopause. Joint pain is an important part of the postmenopausal symptom complex in this population.Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/140130/1/jwh.2014.4863.pd
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Includes index.Includes bibliographical references
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