Suzanne L. West

Risk factors and outcome of hospital-acquired acute renal failure: Clinical epidemiologic study:

In order to evaluate potential risk factors for the development of hospital-acquired acute renal failure, a case-control study was performed, comparing patients with hospital-acquired acute renal failure with control subjects matched on age, sex, hospital, service of admission, and baseline renal function. The same patients were then reanalyzed utilizing a cohort study design to investigate outcomes from this syndrome. The following elevated odds ratios (95 percent confidence interval) were found while simultaneously adjusting for possible confounding variables using logistic regression: volume depletion, 9.4 (2.1 to 42.8); aminoglycoside use, 5.6 (1.3 to 23.7); congestive heart failure 9.0 (2.1 to 38.9); radiocontrast exposure, 4.9 (1.2 to 19.7); and septic shock, approached infinity, p less than 0.0001. The effect of volume depletion was markedly accentuated in those with diabetes (odds ratio = 1.9) (p less than 0.05). The risk from aminoglycoside use markedly increased with increasing age (p less than 0.002). Finally, the development of hospital-acquired acute renal failure was associated with a marked increase in the risk of dying--the relative risk (95 percent confidence interval) was 6.2 (2.6 to 14.9)--and a marked increase in length of stay, from a median of 13 days in control subjects to a median of 23 days in case subjects (p = 0.005). In conclusion, hospital-acquired acute renal failure is a serious illness. Attempts to prevent it should focus on proved risk factors.

Prevalence of Low Sexual Desire and Hypoactive Sexual Desire Disorder in a Nationally Representative Sample of US Women

BACKGROUND We sought to estimate the prevalence of low sexual desire and hypoactive sexual desire disorder (HSDD) in US women, focusing on their menopausal status. METHODS We performed a cross-sectional study. From a probability sample of households, 2207 US women aged 30 to 70 years and in stable relationships (>or=3 months) were interviewed by telephone. The analysis focused on 755 premenopausal women and 552 naturally and 637 surgically menopausal women. Low sexual desire was defined using the Profile of Female Sexual Function desire domain, and HSDD was defined using the Profile of Female Sexual Function and the Personal Distress Scale. RESULTS Prevalence of low sexual desire ranged from 26.7% among premenopausal women to 52.4% among naturally menopausal women. The prevalence of HSDD was highest among surgically menopausal women (12.5%). Compared with premenopausal women and adjusting for age, race/ethnicity, educational level, and smoking status, the prevalence ratios for HSDD were 2.3 (95% confidence interval, 1.2-4.5) for surgically menopausal women and 1.2 (0.5-2.8) for naturally menopausal women; the prevalence ratios for low sexual desire were 1.3 (0.9-1.9) and 1.5 (1.0-2.2) for surgically and naturally menopausal women, respectively. CONCLUSIONS Prevalence of low sexual desire is elevated among surgically and naturally menopausal women vs premenopausal women. Distress about low desire (HSDD) appears to be more than twice as prevalent among surgically menopausal women vs premenopausal women, although the estimate is fairly imprecise.

Risk factors for gallbladder cancer. An international collaborative case–control study

Background. Gallbladder cancer has an unusual geographic and demographic distribution, suggesting many possible etiologies.

Sexual Activity, Contraceptive Use, and Other Risk Factors for Symptomatic and Asymptomatic Bacteriuria: A Case-Control Study

In a study to determine the risk factors for urinary tract infection in college-aged women, women who presented with acute urinary tract infection to the student health service were compared to women without bacteriuria who presented with complaints of other acute illnesses. Among women who were sexually active, the following multivariate adjusted odds ratios (95% confidence intervals) were found; intercourse in the previous 48 hours, 58.1 (11.9 to 284.1); intercourse only in the previous 3 to 7 days, 9.1 (1.9 to 44.1); diaphragm use in the previous 48 hours, 8.4 (3.4 to 21.1); urination after intercourse, 0.5 (0.3 to 0.9); and past history of urinary tract infection, 2.7 (1.5 to 5.0). Several other factors previously postulated to be related to urinary tract infection were found not to be associated, including oral contraceptive use, tampon use, and direction of wiping after a bowel movement. When the women with symptomatic bacteriuria were compared to women with asymptomatic bacteriuria, the results were similar, except diaphragm use and urination after intercourse were no longer associated with urinary tract infection. When the women with asymptomatic bacteriuria were compared to women without symptoms and without bacteriuria, diaphragm use remained the only statistically significant risk factor. These findings should be taken into account in attempts to prevent urinary tract infection, as well as in subsequent studies of this disease.

Completeness of prescription recording in outpatient medical records from a health maintenance organization

Since validity of drug data is often characterized by the agreement between questionnaire and medical record data, medical record completeness for drug therapy was evaluated. Outpatient medical records of 501 randomly selected Group Health Cooperative Health Maintenance Organization (HMO) participants known to have been dispensed a non-steroidal anti-inflammatory drug (NSAID) were reviewed for completeness. Documentation was also evaluated for indication, age, gender, location of visit, and number of visits. The NSAID was recorded in 89% of the charts reviewed. Charts with a vague/missing diagnosis were more likely to lack documentation [RR (95% CI): 20.0 (13.2-30.3)]. The data suggested that poorer documentation was related to older age [1.5 (0.9-2.5)] but not to gender, indication, location of visit, or number of visits. Presence of an indication was positively correlated to the completeness of drug documentation. According to this staff/group HMO, there may be a higher concordance between self-reported medication use and medical record data than found in previous literature.

Hypoactive Sexual Desire Disorder in Postmenopausal Women: Quality of Life and Health Burden

OBJECTIVES To describe the health-related quality of life (HRQOL) implications of hypoactive sexual desire disorder (HSDD) in a national sample of postmenopausal women ages 30–70. METHODS The Nationwide Survey of Female Sexual Health, a random-digit telephone survey of US households, collected information on female sexual function, demographic characteristics, HRQOL, and the presence of specific medical disorders from 1189 naturally or surgically postmenopausal women in stable relationships of ≥3 months duration. HSDD was defined as <40 on the Profile of Female Sexual Function© scale and <60 on the Personal Distress Scale©. Short Form-12 Health Survey (SF-12) summary and domain scores, and EuroQol (EQ-5D) index score and dimensions were compared with population-based norms for healthy individuals and selected chronic conditions. RESULTS HSDD was associated with significant HRQOL decrements, with the largest SF-12 score differences in mental health (HSDD: 45.4 [standard error 1.9] vs. no HSDD: 51.0 [0.6], P < 0.01), vitality (HSDD: 47.7 [1.3] vs. no HSDD: 52.0 [0.7], P < 0.01), social function (HSDD: 47.3 [1.4] vs. no HSDD: 50.9 [0.7], P < 0.05), and bodily pain (HSDD: 41.4 [2.2] vs. no HSDD: 46.7 [0.9], P < 0.05). EQ-5D index was 0.08 points lower (HSDD: 0.76 [0.03] vs. no HSDD: 0.84 [0.02], P < 0.05) for those with HSDD compared with those without. HSDD was associated with a 0.1-point decrement in naturally menopausal women (HSDD: 0.78 [0.03] vs. no HSDD 0.88 [0.01], P < 0.01). Women with HSDD showed more HRQOL impairment than healthy population norms but were similar to adults with other chronic conditions such as diabetes and back pain. CONCLUSIONS Women with HSDD showed substantial impairment in HRQOL. Given a prevalence of 6.6% to 12.5% among US women, HSDD represents an important burden on quality of life.

Demographics, health behaviors, and past drug use as predictors of recall accuracy for previous prescription medication use

Drug data for pharmacoepidemiologic studies are often ascertained by self-report, but little research has addressed the factors influencing its accuracy. Stratified random sampling was used to select individuals for a study comparing interview data on past prescription drug use with dispensation information from the Group Health Cooperative of Puget Sound pharmacy database. The strata included age, gender, and recency of use. Recall accuracy and its determinants were evaluated for repetitively used non-steroidal anti-inflammatory drugs (NSAIDs), short-term NSAIDs (only a single dispensation), and post-menopausal estrogens. We investigated whether recall accuracy was influenced by education, marital status, race, smoking, alcohol consumption, cumulative drug history, the number of different NSAIDs or estrogens dispensed (both by name and dosage), and the number of dispensations of the drug in question. For repetitively used NSAIDs, recall accuracy was positively associated with the number of NSAID dispensations (the odds of recall were 1.7 [95% confidence interval {CL}: 1.3-2.2] times greater for each additional four dispensations of the NSAID), the total number of drugs dispensed and the number of different NSAIDs dispensed. For estrogen and short-term NSAID use, only higher educational attainment improved recall accuracy: the odds of recall were 4.1 (95% CI: 1.4-11.7) and 2.1 (95% CI: 1.0-4.7) times greater for those with some college compared with those with only a high school degree, respectively. This study demonstrates that predictors of recall accuracy for previous medication use differ by the type of drug and the repetitiveness of its use.

Clinical and biological moderators of response to naltrexone in alcohol dependence: a systematic review of the evidence

AIM The goal of this systematic review was to identify moderators of naltrexone efficacy in the treatment of alcohol dependence. METHODS We searched Pubmed, CINHAL, Embase, PsycINFO and the Cochrane Library from 1990 to April 2012 and reference lists of pertinent review articles, which yielded 622 trial, pooled analysis and review articles. Using pre-established eligibility criteria, two reviewers independently determined whether abstracts contained evidence of demographic or biological characteristics, i.e. moderators, influencing naltrexone response in alcohol dependence. We assessed each publication for risk of bias and evaluated the strength of the body of evidence for each moderator. RESULTS Twenty-eight publications (on 20 studies) met criteria for data synthesis. These included 26 publications from 12 randomized, placebo-controlled trials, three non-randomized, non-placebo studies and one randomized, non-placebo study. In addition, there were two publications from pooled analyses of four randomized, placebo-controlled trials. Family history of alcohol problems and the Asn40Asp polymorphism of the μ-opioid receptor gene showed a positive association with efficacy in four of five and three of five studies, respectively. Other moderators reported to be associated with efficacy included male sex (two of five studies), pre-treatment drinking (two of two studies) and high craving (two of five studies). However, the overall risk of bias in the published literature is high. CONCLUSIONS The identification of naltrexone-responsive alcohol-dependent patients is still in development. Studies to date point to two potential moderators-family history and presence of the OPRM1 Asn40Asp polymorphism-as having the strongest evidence. However, the data to date is still insufficient to recommend that any moderator be used in determining clinical treatment.

The identification of pregnancies within the general practice research database

The United States is moving toward active drug safety surveillance using sources such as administrative claims and electronic medical records, but use of these data for studying teratogenicity has been challenging, as they typically do not allow for the easy identification of pregnancies. Our goal was to develop and validate an algorithm for the identification of pregnancies in the general practice research database (GPRD) that could be used to study pregnancy outcomes.

Ethnicity and depression treatment preferences of pregnant women

African American, Hispanic, and White women between 12 and 32 weeks gestation were recruited to examine their depression treatment preferences. The 73 women who participated were interviewed after their prenatal visit. Nineteen percent of women had symptoms of moderate or severe depression. Women with moderate or severe symptoms of depression were more likely to believe that antidepressants were an acceptable treatment than those without symptoms or with only minor depression symptoms. There were only small differences among the three ethnic groups for antidepressant use preference but most women found them to be unacceptable. In contrast, approximately half of the White women felt that herbal medicines were acceptable compared with 16 and 22 percent for African Americans and Hispanics, respectively. Only 44 percent of African American women felt that counseling from a mental health professional was an acceptable treatment for depression compared to 68 percent for White and 61 percent for Hispanic women. Similarly, African American women were less likely to believe that waiting and getting over depression symptoms naturally was acceptable compared to Hispanic and White women.