Dietary Intake and Symptom Severity in Women with Fecal Incontinence.

INTRODUCTION AND HYPOTHESIS: The goal of this study was to determine whether dietary fat/fiber intake was associated with fecal incontinence (FI) severity. METHODS: Planned supplemental analysis of a randomized clinical trial evaluating the impact of 12-week treatment with percutaneous tibial nerve stimulation versus sham in reducing FI severity in women. All subjects completed a food screener questionnaire at baseline. FI severity was measured using the seven-item validated St. Mark's (Vaizey) FI severity scale. Participants also completed a 7-day bowel diary capturing the number of FI-free days, FI events, and bowel movements per week. Spearman's correlations were calculated between dietary, St. Mark's score, and bowel diary measures. RESULTS: One hundred and eighty-six women were included in this analysis. Mean calories from fats were 32% (interquartile range [IQR] 30-35%). Mean dietary fiber intake was 13.9 ± 4.3 g. The percentage of calories from fats was at the higher end of recommended values, whereas fiber intake was lower than recommended for adult women (recommended values: calories from fat 20-35% and 22-28 g of fiber/day). There was no correlation between St. Mark's score and fat intake (r = 0.11, p = 0.14) or dietary fiber intake (r = -0.01, p = 0.90). There was a weak negative correlation between the number of FI-free days and total fat intake (r = -0.20, p = 0.008). Other correlations between dietary fat/fiber intake and bowel diary measures were negligible or nonsignificant. CONCLUSION: Overall, in women with moderate to severe FI, there was no association between FI severity and dietary fat/fiber intake. Weak associations between FI frequency and fat intake may suggest a role for dietary assessment in the evaluation of women with FI.

Robot-assisted laparoscopic anterior urethral diverticulectomy.

INTRODUCTION AND HYPOTHESIS: A 31-year-old patient with a history of fetal sacrococcygeal teratoma requiring tumor resection and pelvic reconstruction in infancy presented with a 3-year history of recurrent vulvar abscesses and voiding dysfunction. Magnetic resonance imaging demonstrated a fluid collection posterior to the pubic bone and inferior to the bladder. The objective was to demonstrate the key steps in the resection and repair of an anterior urethral diverticulum via robot-assisted laparoscopic approach. METHODS: Cystoscopy followed by robot-assisted laparoscopic retropubic dissection was used for resection of an anterior urethral diverticulum followed by urethral reconstruction. RESULTS: Cystoscopy revealed a large anterior cavity at the midpoint of the urethra consistent with an anterior urethral diverticulum. This likely tracked inferiorly toward her vulva during repeated episodes of infection expressing through her recurrent abscesses. Retropubic space exploration revealed dense fibrotic tissue adherent to the underside of the pubic tubercule contiguous with the anterior urethral diverticulum, which was successfully resected. CONCLUSIONS: Female anterior urethral diverticulum is a rare entity. A robot-assisted laparoscopic approach can be safely utilized to identify and resect an anterior urethral diverticulum. Key points include optimization of port placement, use of a council-tip catheter to facilitate bladder drainage in the setting of distorted pelvic anatomy, and multi-layered tension-free urethral closure with flap placement.

Development and initial validation of a pictorial survey to assess for symptomatic pelvic organ prolapse and urinary incontinence in western Kenya.

INTRODUCTION AND HYPOTHESIS: Visual tools are a valuable tool for ascertaining patient symptoms, especially in populations with low literacy rates. The objective was to develop and validate a pictorial scale for assessing symptomatic pelvic organ prolapse (POP) and urinary incontinence among women in western Kenya. METHODS: Illustrations of POP, stress urinary incontinence (SUI), and urgency urinary incontinence (UUI) were developed by an artist. Virtual Zoom interviews were conducted with gynecology providers in Kisumu soliciting feedback on the illustrations. Cognitive interviews with patients were then conducted. Validation of the illustrations was performed against the gold standard of clinical history and examination amongst patients presenting for outpatient care at three Kisumu hospitals. RESULTS: Sixteen provider interviews were conducted. The illustrations were revised to reflect each disorder more clearly, and performed well during cognitive interviews with 8 patients (aged 21 to 76). One hundred patients were included in the validation study. Nine patients had symptomatic POP, whereas 32 had UUI and 25 had SUI. Sensitivity and specificity for the SUI illustration was 80% (95% CI 61-91%) and 97% (95% CI 72-98%) and for UUI they were 81% (95% CI 65-91%) and 99% (95% CI 92-100%) respectively. POP illustrations had lower sensitivity and specificity, with the best performing illustration having sensitivity of 67% (95% CI 35-88%) and specificity of 99% (95% CI 94-100%), which improved when only bulge or pressure symptoms were included. CONCLUSIONS: We present a newly developed pictorial scale to assess for clinical urinary incontinence and POP that may be adapted and evaluated in other settings for clinical and research purposes.

Informed consent: who are we informing?

Communication is the foundation of informed consent in research. This article relays the reflections of an American urogynecology fellow and researcher in Kenya on the topic of informed consent. After learning of how a previous foreign researcher's presence in the community had violated the trust that women placed in women's health research, she reflects on how the standard eurocentric approach to obtaining written informed consent in research may sow breakdowns in communication and also perpetuate distrust in research. Particularly for settings in which the language is primarily spoken, or where there are varying literacy levels, the standard research consent should be reimagined to make the informed consent process more equitable and less of an exercise in documentation. Communication of research study information to patients must take into account the diverse and evolving ways in which patients best consume information, and in such a way that it ultimately enhances their autonomy.

Postpartum contraceptive uptake and fertility desires following obstetric anal sphincter injury.

INTRODUCTION AND HYPOTHESIS: Our primary objective was to compare rates of contraceptive use among postpartum heterosexual primiparous women with and without obstetric anal sphincter injury (OASIS). The secondary objective was to compare fertility desires among women with and without OASIS. METHODS: This was a planned secondary analysis of a prospective cohort study of postpartum sexual function among primiparous postpartum women. Women with a history of vaginal delivery with and without OASIS completed online surveys at baseline and 3 months postpartum. RESULTS: Sixty-nine women completed baseline and 3-month surveys. Forty-one percent of women with OASIS and 36% without OASIS were not using contraception at 3 months postpartum. One-third of women in either group reported using at least moderately effective contraception (P = 0.9), defined as using hormonal contraception or an intrauterine contraceptive device, and excluding condoms. Most women with OASIS (54%) desired to wait 1 to 2 years before attempting another pregnancy. One fifth of women with and without OASIS desired another pregnancy within the next year (P = 0.4). CONCLUSIONS: A minority of postpartum primiparous women in the present cohort reported using moderately effective contraception 3 months postpartum, regardless of whether they sustained OASIS. The discrepancy between current contraceptive use and desired birth spacing suggests an unmet contraceptive need within our population and an opportunity for improved contraceptive counseling consistent with patients' family planning goals, as well as national and international guidelines on birth spacing. Larger prospective studies are needed to further understand the unmet contraceptive need among women with OASIS.

International Urogynecological Consultation: clinical definition of pelvic organ prolapse.

INTRODUCTION AND HYPOTHESIS: This segment of Chapter 1 of the International Urogynecology Consultation (IUC) on pelvic organ prolapse (POP) reviews the literature on the clinical definition of POP with the intent of creating standard terminology. METHODS: An international group containing nine urogynecologists and one university-based medical librarian performed a search of the literature using pre-specified search terms in PubMed, Embase, and Scopus. Publications were eliminated if not relevant to the clinical definition of POP, and those articles remaining were evaluated for quality using the Specialist Unit for Review Evidence (SURE). The resulting list of articles was used to inform a comprehensive review and creation of the clinical definition of POP. RESULTS: The original search yielded 31,931 references, of which 167 were used by the writing group. Ultimately, 78 are referenced in the manuscript. CONCLUSIONS: The clinical definition of POP for this review of the literature is: "anatomical prolapse with descent of at least one of the vaginal walls to or beyond the vaginal hymen with maximal Valsalva effort WITH the presence either of bothersome characteristic symptoms, most commonly the sensation of vaginal bulge, or of functional or medical compromise due to prolapse without symptom bother."

Dual Method Use among Postpartum HIV-Infected and HIV-Uninfected Malawian Women: A Prospective Cohort Study.

Dual method use, use of condoms plus another effective contraceptive method, is important in settings with high rates of unintended pregnancy and HIV infection. We evaluated the association of HIV status with dual method use in a cohort of postpartum women. Women completed baseline surveys in the postpartum ward and telephone surveys about contraceptive use 3, 6, and 12 months later. Nonpregnant women who completed at least one follow-up survey were eligible for this secondary analysis. Prevalence ratios were calculated using generalized estimating equations. Of the 511 sexually active women who completed a follow-up survey, condom use increased from 17.6% to 27.7% and nonbarrier contraceptive use increased from 73.8% to 87.6% from 3 to 12 months after delivery. Dual method use increased from 1.0% to 18.9% at 3 to 12 months after delivery. Dual method use was negligible and comparable between HIV-infected and HIV-uninfected women at 3 months but significantly higher among HIV-infected women at 6 months (APR = 3.9, 95% CI 2.2, 7.1) and 12 months (APR = 2.7, 95% CI 1.7, 4.3). Dual method use was low but largely driven by condom use among HIV-infected women at 6 and 12 months after delivery.

Reproductive intentions and family planning practices of pregnant HIV-infected Malawian women on antiretroviral therapy.

The objective of this study was to describe the pregnancy intentions of pregnant HIV-infected Malawian women on antiretroviral therapy (ART) for at least 6 months prior to the current pregnancy, and to assess whether time on ART was associated with pregnancy intention. We conducted a cross-sectional analysis of HIV-infected Malawian women receiving antenatal care at a government hospital with a survey assessing ART history, reproductive history, and family planning use at conception. We used Pearson's chi-square tests and Fisher's exact tests to compare these parameters between women on ART greater than 24 months with those on ART less than 24 months. Modified Poisson regression was performed to assess the association between time on ART and pregnancy intention. Most women (75%) reported that their current pregnancy was unintended, defined as either Mistimed (21%) or Unwanted (79%). Women on ART for longer than 2 years were more likely to report an unintended pregnancy (79% versus 65%, p = .03), though there was no significant association between time on ART and pregnancy intention in multivariate analysis. Most women (79%) were using contraception at the time of conception, with condoms being most popular (91%), followed by injectables (9%) and the implant (9%). HIV-infected women on ART continue to experience high rates of unintended pregnancy in the Option B+ era. As Option B+ continues to be implemented in Malawi and increasing numbers of HIV-infected women initiate lifelong ART, ensuring that the most effective forms of contraception are accessible is necessary to decrease unintended pregnancy.

Family Planning Providers' Experiences and Perceptions of Long-Acting Reversible Contraception in Lilongwe, Malawi.

Less than 2% of Malawian women use long-acting reversible contraception (LARC). We describe experiences of Malawian family planning providers, focusing on LARC. We conducted a mixed-methods study using questionnaires and focus group discussions with providers in Lilongwe. Data were analyzed separately and triangulated. Most (58%) participants saw over 30 patients daily. Only 19% had ever inserted IUC. Qualitative data were complementary; participants noted that LARC provision was important, though hindered by lack of experienced providers, work burden, and low demand. Future efforts to improve LARC access in Lilongwe must address both supply and demand-side barriers.

Effect of HIV status on fertility desire and knowledge of long-acting reversible contraception of postpartum Malawian women.

The objectives of this study were to describe the most recent pregnancy intentions and family planning preferences of HIV-infected and HIV-uninfected postpartum Malawian women, and to assess whether HIV status is associated with fertility desire and knowledge of intrauterine contraception (IUC) and the subdermal contraceptive implant. We conducted a cross-sectional analysis of the baseline characteristics of Malawian women enrolled in a prospective cohort study assessing postpartum contraceptive uptake and continuation. Women at a government hospital completed a baseline survey assessing reproductive history, family planning preferences, and knowledge of IUC and the implant. We used Pearson's chi-square tests to compare these parameters between HIV-infected and HIV-uninfected women. Modified Poisson regression was performed to assess the association between HIV status and fertility desire and knowledge about IUC and the implant. Of 634 postpartum women surveyed, HIV-infected women were more likely to report their most recent pregnancy was unintended (49% vs. 37%, p = 0.004). Nearly all women (97%) did not want a child in the next 2 years, but HIV-infected women were more likely to desire no more children (adjusted prevalence ratio [PR]: 1.59; 95% confidence interval [CI]: 1.33, 1.89). HIV-infected women were also less likely to know that IUC (adjusted PR: 0.72; 95% CI: 0.61, 0.84) and the implant (adjusted PR: 0.83; 95% CI: 0.75, 0.92) are safe during breast-feeding. Postpartum women strongly desire family spacing and many HIV-infected postpartum women desire no more children, suggesting an important role for these long-acting methods. Education about the efficacy and safety of IUC and the implant particularly during breast-feeding may facilitate postpartum use.

Standard Restrictions vs Expedited Activity After Pelvic Organ Prolapse Surgery: A Randomized Clinical Trial.

Importance: Restrictions on postoperative activity following pelvic organ prolapse (POP) surgery are not evidence based. Nonetheless, many pelvic surgeons place lifting and activity restrictions on patients following surgery. Objective: To evaluate whether expedited activity results in noninferior anatomic and symptomatic outcomes compared with standard activity restrictions after POP surgery. Design, Setting, and Participants: This randomized noninferiority clinical trial included patients undergoing vaginal or laparoscopic apical reconstructive surgery for POP between July 1, 2020, and October 31, 2021, at a single academic tertiary referral center in Durham, North Carolina. Anatomic outcomes were assessed by masked examiners, and subjective outcomes were assessed via validated surveys, both completed at 3 months postoperatively. Patients meeting minimum physical activity criteria with at least stage II bothersome POP were eligible. A total of 218 patients were approached, of whom 123 were randomly assigned and 107 had complete outcome data and were included in the analysis. Interventions: Patients were randomly assigned to receive standard restrictions vs expedited postoperative activity instructions. Main Outcomes and Measures: The anatomic coprimary outcome was maximum anatomic POP support loss (SLmax), which is the most distal point of pelvic organ support loss according to the Pelvic Organ Prolapse Quantification System (noninferiority margin, 1.0 cm). The symptomatic coprimary outcome was the Pelvic Organ Prolapse Distress Inventory (POPDI) symptom score (noninferiority margin, 34.3 points). Differences between outcomes were assessed using linear regression models controlling for baseline SLmax and POPDI, respectively. Results: Of 123 participants randomized, 107 had complete 3-month outcome data and were included in the analysis. Mean (SD) age was 62.8 (10.1) years. At 3 months, mean (SD) SLmax was -1.7 (1.4) cm in the expedited group and -1.5 (1.4) cm in the standard group (P = .44). After adjusting for baseline SLmax, the mean maximum support loss was 0.18 cm higher within the vaginal canal in the expedited group (95% CI, -0.68 to 0.33 cm). The coprimary outcome of POPDI score was a mean (SD) 23.7 (41.8) points in the expedited group vs 25.7 (39.3) points in the standard group (P = .80). After adjusting for baseline scores, mean POPDI scores were 5.79 points lower in the expedited group (95% CI, -20.41 to 8.84). Conclusions and Relevance: The findings demonstrate that expedited activity after prolapse surgery results in noninferior anatomic and symptomatic prolapse outcomes. It is reasonable to instruct patients undergoing minimally invasive prolapse surgery to resume physical activities ad lib postoperatively. Trial Registration: ClinicalTrials.gov Identifier: NCT04329715.

Clostridium difficile outbreak in Costa Rica: control actions and associated factors.

OBJECTIVE: To describe interventions implemented during a nosocomial outbreak of Clostridium difficile in a general hospital in Costa Rica from December 2009 to April 2010 in order to achieve outbreak control and the factors determined to be associated with C. difficile infection. METHODS: Laboratory-confirmed cases of C. difficile were analyzed to describe the outbreak pattern and intervention measures implemented. Cases were selected and recruited in a case-control study. Controls were selected from the same services and time period as the cases. Evaluated exposures included underlying medical conditions and treatments administered before the onset of symptoms. RESULTS: The mean ages in case and control groups were 62.3 and 55.3 years, respectively. Control measures included a hand-hygiene campaign, deep disinfection of hospital surfaces, strict isolation of cases, use of personal protection equipment, and restriction of antibiotic use. The adjusted attributable risks associated with the outbreak were diabetes [odds ratio (OR) 3.4, 95% confidence interval (CI) 1.5-7.7], chronic renal failure (OR 9.0, 95% CI 1.5-53.0), and prescribing ceftazidime (OR 33.3, 95% CI 2.9-385.5) and cefotaxime (OR 20.4, 95% CI 6.9-60.3). CONCLUSIONS: Timely implementation of control measures resulted in reduced infection transmission and successful control of the outbreak. Conditions associated with C. difficile infection were similar to those found in previously described outbreaks of this bacterium.

Trends in Performance of Anti-Incontinence Treatment at the Time of Pelvic Organ Prolapse Repair From 2011 to 2019.

IMPORTANCE: There are no publications on national trends in performance of concomitant stress urinary incontinence (SUI) treatment with pelvic organ prolapse surgery over the past decade. OBJECTIVES: The objective of this study was to describe trends in the performance and type of concomitant SUI treatment from 2011 to 2019. STUDY DESIGN: Surgical procedures for pelvic organ prolapse and coding for prolapse repair were identified from the American College of Surgeons National Surgical Quality Improvement Program database. An autoregressive interrupted time series model estimated temporal trends in concomitant SUI treatment associated with 3 consequential events: U.S. Food and Drug Administration's (FDA) requirement for postmarketing studies from mesh manufacturers (January 2012), publication of the Outcomes following Vaginal Prolapse Repair and Midurethral Sling (OPUS) trial (June 2012), and the FDA's reclassification of vaginal mesh as a high-risk device (January 2016). RESULTS: There were 43,370 cases identified. The rate of concomitant SUI treatment decreased from 46.1% to 35.7% across the analysis period. No significant trend before postmarketing studies (-0.2%; 95% confidence interval [CI], -0.8 to 1.1) was observed. After postmarketing studies, there was a downward deflection of -2.0% per quarter (95% CI, -3.6 to -0.4). After OPUS, we observed a flattening of the trend to -0.2% (95% CI, -0.8 to 0.4) that persisted after FDA reclassification. Sling procedures remained predominant (96.2% of SUI procedures) and performance of urethropexy decreased across the analysis period (-0.1%; 95% CI, -0.08 to -0.2). CONCLUSIONS: After the FDA's order for postmarketing studies, rates of concomitant SUI treatment significantly decreased. Rates stabilized after the OPUS trial at around 35% and did not subsequently change. Rates of nonmesh concomitant SUI treatment decreased during the analysis period.

Barriers and Promotors to Health Service Utilization for Pelvic Floor Disorders in the United States: Systematic Review and Meta-analysis of Qualitative and Quantitative Studies.

IMPORTANCE: We need a systematic approach to understanding health service utilization behavior in women with pelvic floor symptoms in the United States. OBJECTIVES: The aim of this study was to determine the prevalence of pelvic floor care utilization and identify its barriers and promotors using Andersen's model, which theorizes care-seeking behavior with individual care needs, resources, predispositions, and macrostructures. DESIGN: This was a systematic search of studies on care-seeking patterns in women with symptomatic pelvic floor disorders, which included pelvic organ prolapse, lower urinary tract symptoms, and anal incontinence. We then performed meta-analyses with random-effects models and descriptive analysis to determine utilization rate and the impact of each identified determinant. RESULTS: The pooled utilization rate was 37% (95% confidence interval [CI], 30%-45%). Determinants were identified across all domains except at the macrostructure level. For individual care needs, increased symptom severity or duration and a history of depression (odds ratio [OR], 1.27; 95% CI, 1.07-1.51) were associated with higher utilization. In the resources domain, having social support and established primary/secondary care were promotors, whereas higher income and employed status trended as barriers. Under predispositions, age ≥50 years (OR, 1.29; 95% CI, 1.05-1.60), and pelvic floor awareness were associated with utilization, whereas Asian (OR, 0.60; 95% CI, 0.51-0.72) and Black (OR, 0.77; 95% CI, 0.55-1.08) women as well as women experiencing fear, misinformation, or normalization of pelvic floor disorders had decreased utilization. CONCLUSIONS: This review identified a low utilization rate for pelvic floor care and revealed multilayered, actionable items affecting care-seeking behavior. It highlights the need for more inclusive and multifaceted approaches in future pelvic floor disparity research and equity interventions.

AUGS-PERFORM: A New Patient-Reported Outcome Measure to Assess Quality of Prolapse Care.

Patient-reported outcomes (PRO) are important for measuring quality of care, particularly for interventions aimed at improving symptom bother such as procedures for pelvic organ prolapse. We aimed to create a concise yet comprehensive PRO measurement tool to assess pelvic organ prolapse care in high-volume clinical environments. Methods: The relevant concepts to measure prolapse treatment quality were first established through literature review, qualitative interviews, and a patient and provider-driven consensus-building process. Extant items mapping to these concepts, or domains, were identified from an existing pool of patient-reported symptoms and condition-specific and generic health-related quality of life measures. Item classification was performed to group items assessing similar concepts while eliminating items that were redundant, inconsistent with domains, or overly complex. A consensus meeting was held in March 2020 where patient and provider working groups ranked the remaining candidate items in order of relevance to measure prolapse treatment quality. After subsequent expert review, the revised candidate items underwent cognitive interview testing and were further refined. Results: Fifteen relevant PRO instruments were initially identified, and 358 items were considered for inclusion. After 2 iterative consensus reviews and 4 rounds of cognitive interviewing with 19 patients, 11 final candidate items were identified. These items map 5 consensus-based domains that include awareness and bother from prolapse, physical function, physical discomfort during sexual activity, pain, and urinary/defecatory symptoms. Conclusions: We present a concise set of candidate items that were developed using rigorous patient-centered methodology and a national consensus process, including urogynecologic patients and providers.

Fragile X protein controls the efficacy of mRNA transport in Drosophila neurons.

Fragile X syndrome, the most common form of inherited mental retardation is caused by mutations in the FMR1 gene. FMR1 encodes an RNA-binding protein thought to control the transport and translation of target mRNAs. While the function of FMRP in translational control has been clearly demonstrated, its role in mRNA transport and localization in neurons remains elusive. Using a genetically encoded mRNA imaging system in Drosophila we provide the first demonstration that FMRP controls mRNA transport. Live imaging of FMRP associated mRNAs show that mRNA granules are less motile and exhibit decreased directional movement in dFmr1 mutant neurons. Furthermore, Fluorescence Recovery After Photobleaching experiments show that the mobile fraction of mRNA molecules within neurites is dependent on FMRP dosage. These data support a model whereby FMRP regulates transport efficacy, by regulating the association between mRNA cargo and microtubules and suggest a new mechanism for the disease.

Association between contraceptive implant knowledge and intent with implant uptake among postpartum Malawian women: a prospective cohort study.

BACKGROUND: Long-acting reversible contraception (LARC) can assist women with birth spacing and reduce unintended pregnancies. Sub-Saharan Africa has low uptake of the two available methods of LARC, the subdermal implant and intrauterine contraception (IUC). Our primary objectives were to: 1) calculate the incidence of LARC use among postpartum Malawian women, and 2) assess if LARC knowledge and intent to use LARC were associated with LARC uptake. METHODS: This study was a prospective cohort study of 634 postpartum women who were recruited from the postpartum ward of Bwaila Hospital in Lilongwe, Malawi. Study participants completed a baseline survey in the postpartum ward. Follow-up telephone surveys about contraceptive use were conducted at 3, 6, and 12 months postpartum. Cox proportional hazards regression analysis was performed to evaluate if implant knowledge and intent to use implant were associated with implant uptake. RESULTS: One hundred thirty-seven implant and 10 IUC placements were reported over 12 months of follow-up; given the low rate of IUC uptake, further analysis was only done for implant uptake. The incidence rate for implant uptake was 35.6 per 100 person-years (95 % CI 30.0, 42.2). Correct implant knowledge (adjusted HR = 1.69; 95 % CI 1.06, 2.68) and intent to use implant (adjusted HR 1.95; 95 % CI 1.28, 2.98) were both associated with implant uptake. CONCLUSIONS: More women reported implant use than IUC use in our study. Correct implant knowledge and intent to use implant were both associated with implant uptake, with a stronger association for intent. Interventions to increase LARC uptake should focus on improving LARC knowledge and removing barriers to LARC. TRIAL REGISTRATION: Clinical Trial Registration #: NCT01893021.

Long term effect of infection control practices and associated factors during a major Clostridium difficile outbreak in Costa Rica.

INTRODUCTION: The C. difficile BI/NAP 1 hyper virulent strain has been responsible for the nosocomial outbreaks in several countries. The present study describes the infection control strategies utilized to achieve outbreak control as well as the factors associated with a C. difficile BI/NAP 1 hyper virulent strain outbreak in Costa Rica. METHODOLOGY: A descriptive analysis of the C. difficile outbreak was completed for the period of January 2007 to December 2010 in one affected hospital. An unmatched case-control study was subsequently performed to evaluate the association of exposure factors with C. difficile infection. RESULTS: The pattern of the outbreak was characterized by a sharp increase in the incidence rate during the initial weeks of the outbreak, which was followed by a reduction in the incidence curve as several infection control measures were implemented. The C. difficile BI/NAP1 infection was associated with the prescription of antibiotics, in particular levofloxacin (OR: 9.3; 95%CI: 2.1-40.2), meropenem (OR: 4.9, 95%CI: 1.0-22.9), cefotaxime (OR: 4.3, 95%CI: 2.4-7.7), as well as a medical history of diabetes mellitus (OR: 2.9, 95%CI: 1.5-5.8). CONCLUSIONS: The infection control strategies implemented proved to be effective in achieving outbreak control and in maintaining the baseline C. difficile incidence rate following it. The reported C. difficile outbreak was associated with the prescription of broad-spectrum antibiotics and a medical history of diabetes.