In-Lu Amy Liu

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OBJECTIVE We examined associations between obesity and diabetes and female pelvic floor disorders (PFDs), stress urinary incontinence (SUI), overactive bladder (OAB), and anal incontinence (AI) in community-dwelling women. RESEARCH DESIGN AND METHODS Women were screened for PFD using a validated mailed survey. Diabetes status, glycemic control, and(More)
BACKGROUND Diabetic nephropathy is the leading cause of end-stage renal disease in the USA, yet most patients with type 2 diabetes mellitus are not formally evaluated with a renal biopsy. Our aim was to evaluate the prevalence of nondiabetic renal disease (NDRD) in patients with type 2 diabetes mellitus to determine common clinical indicators suggestive of(More)
PURPOSE This study was designed to determine factors that contribute to chronic anal fistula or recurrent sepsis after initial perianal abscess. METHODS A retrospective cohort study was conducted in patients with a first-time perianal abscess who were treated at Kaiser Permanente Los Angeles between 1995 and 2007. Univariate and multivariable analyses(More)
Understanding and eliminating health disparities requires accurate data on race/ethnicity. To assess the quality of race/ethnicity data, we compared medical record classifications to self-report of a study of prophylactic mastectomy. A total of 788 women had race/ethnicity from both sources; 69.9% were 55 years of age or older, 38.3% were at least college(More)
RATIONALE Pulmonary nodules are common incidental findings, but information about their incidence in the era of computed tomography (CT) is lacking. OBJECTIVES To examine recent trends in pulmonary nodule identification. METHODS We used electronic health records and natural language processing to identify members of an integrated health system who had(More)
CONTEXT The epidemiology of primary hyperparathyroidism (PHPT) has generally been studied in Caucasian populations. OBJECTIVE The aim was to examine the incidence and prevalence of PHPT within a racially mixed population. DESIGN A descriptive epidemiologic study was performed. PATIENTS/SETTING The study population included 3.5 million enrollees within(More)
BACKGROUND This study evaluates outcomes for children treated without interval appendectomy (IA) after successful nonoperative management of perforated appendicitis. METHODS A retrospective study of pediatric patients with appendicitis was performed from 12 regional acute-care hospitals from 1992 to 2004 with mean length of follow-up of 7.5 years. Main(More)
Bone mineral density is one parameter used to decide whether patients with primary hyperparathyroidism (PHPT) should undergo parathyroidectomy. However, the influence of bone mineral density and parathyroidectomy on subsequent fracture risk is unclear. The authors conducted a retrospective cohort study of patients with PHPT based on administrative discharge(More)
PURPOSE To compare complications in catheters placed by the fluoroscopically guided percutaneous method versus directly visualized surgery. MATERIALS AND METHODS A retrospective cohort analysis was performed. Mechanical complication rate data, including catheter leakage, malfunction, malposition, and bleeding, were compared between the two groups over a(More)
OBJECTIVE To characterise the relationship between simvastatin and risk of acute pancreatitis (AP). DESIGN We conducted a retrospective cohort study (2006-2012) on data from an integrated healthcare system in southern California. Exposure to simvastatin was calculated from time of initial dispensation until 60 days following prescription termination. AP(More)