Charles E. McCulloch

Prof. Charles E. McCulloch


Research Focus & Metrics

Academic Career Length

25Years (2002-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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21 April 2020 in Radiology
Verified
Journal Article
Closed access
AWAntonio C. Westphalen
Antonio C. Westphalen
CMCharles E. McCulloch
Charles E. McCulloch
JAJordan M. Anaokar
Jordan M. Anaokar
SASandeep Arora
Sandeep Arora
NBNimrod S. Barashi
Nimrod S. Barashi
ARAndrew B. Rosenkrantz
Andrew B. Rosenkrantz
Wide variation in prostate cancer detection is seen across all Prostate Imaging Reporting and Data System scores for men with suspected or biopsy-proven untreated prostate cancer who undergo MRI. Background Prostate MRI is used widely in clinical care for guiding tissue sampling, active surveillance, and staging. The Prostate Imaging Reporting and Data System (PI-RADS) helps provide a stand...


11 January 2021 in PLOS Medicine
Verified
Journal Article
Open access
PDF file
SMSusan M. Meffert
Susan M. Meffert
TNThomas C. Neylan
Thomas C. Neylan
CMCharles E. McCulloch
Charles E. McCulloch
KBKelly Blum
Kelly Blum
CCCraig R. Cohen
Craig R. Cohen
LOLinnet Ongeri
Linnet Ongeri
Background: HIV–positive women suffer a high burden of mental disorders due in part to gender-based violence (GBV). Comorbid depression and posttraumatic stress disorder (PTSD) are typical psychiatric consequences of GBV. Despite attention to the HIV-GBV syndemic, few HIV clinics offer formal mental healthcare. This problem is acute in sub-Saharan Africa, where the world’s majority of HIV–positive women live and prevalence of GBV is high. Methods and findings: We conducted a randomized controlled trial at an HIV clinic in Kisumu, Kenya. GBV-affected HIV–positive women with both major depressive disorder (MDD) and PTSD were randomized to 12 sessions of interpersonal psychotherapy (IPT) plus treatment as usual (TAU) or Wait List+TAU. Nonspecialists were trained to deliver IPT inside the clinic. After 3 months, participants were reassessed, and those assigned to Wait List+TAU were given IPT. The primary outcomes were diagnosis of MDD and PTSD (Mini International Neuropsychiatric Interview) at 3 months. Secondary outcomes included symptom measures of depression and PTSD, intimate partner violence (IPV), and disability. A total of 256 participants enrolled between May 2015 and July 2016. At baseline, the mean age of the women in this study was 37 years; 61% reported physical IPV in the past week; 91% reported 2 or more lifetime traumatic events and monthly income was 18USD. Multilevel mixed-effects logistic regression showed that participants randomized to IPT+TAU had lower odds of MDD (odds ratio [OR] 0.26, 95% CI [0.11 to 0.60], p = 0.002) and lower odds of PTSD (OR 0.35, [0.14 to 0.86], p = 0.02) than controls. IPT+TAU participants had lower odds of MDD-PTSD comorbidity than controls (OR 0.36, 95% CI [0.15 to 0.90], p = 0.03). Linear mixed models were used to assess secondary outcomes: IPT+TAU participants had reduced disability (−6.9 [−12.2, −1.5], p = 0.01), and nonsignificantly reduced work absenteeism (−3.35 [−6.83, 0.14], p = 0.06); partnered IPT+TAU participants had a reduction of IPV (−2.79 [−5.42, −0.16], p = 0.04). Gains were maintained across 6-month follow-up. Treatment group differences were observed only at month 3, the time point at which the groups differed in IPT status (before cross over). Study limitations included 35% attrition inclusive of follow-up assessments, generalizability to populations not in HIV care, and data not collected on TAU resources accessed. Conclusions: IPT for MDD and PTSD delivered by nonspecialists in the context of HIV care yielded significant improvements in HIV–positive women’s mental health, functioning, and GBV (IPV) exposure, compared to controls. Trial registration: Clinical Trials Identifier NCT02320799.

28 June 2008 in Biometrics
Verified
Journal Article
Closed access
PDF file
PBPeter Bacchetti
Peter Bacchetti
CMCharles E. McCulloch
Charles E. McCulloch
MSMark R. Segal
Mark R. Segal

1 February 2008 in Statistical Methods in Medical Research
Verified
Journal Article
Closed access
CMCharles E. McCulloch
Charles E. McCulloch
After a brief review of the use of latent variables to accommodate the correlation among multiple outcomes of mixed types, through theoretical and numerical calculation, the consequences of such a construction are quantified. The effects of including latent variables on marginal inference in these models are contrasted with the situation for jointly normal outcomes. A simulation study illustrates the efficiency and reduction in bias gains possible in using joint models, and analysis of an example from the field of osteoarthritis illustrates potential practical differences.