Search Results - "Voldal, Emily C."

Patient Beliefs About Antibiotics for Appendicitis and Outcomes-Reply by Zhang, Irene Y, Voldal, Emily C, Flum, David R

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Power and sample size calculation for stepped-wedge designs with discrete outcomes by Xia, Fan, Hughes, James P, Voldal, Emily C, Heagerty, Patrick J

“…Background Stepped-wedge designs (SWD) are increasingly used to evaluate the impact of changes to the process of care within health care systems. However, to…”
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Analysis of stepped wedge cluster randomized trials in the presence of a time‐varying treatment effect by Kenny, Avi, Voldal, Emily C., Xia, Fan, Heagerty, Patrick J., Hughes, James P.

“…Stepped wedge cluster randomized controlled trials are typically analyzed using models that assume the full effect of the treatment is achieved…”
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Robust analysis of stepped wedge trials using composite likelihood models by Voldal, Emily C., Kenny, Avi, Xia, Fan, Heagerty, Patrick, Hughes, James P.

“…Stepped wedge trials (SWTs) are a type of cluster randomized trial that involve repeated measures on clusters and design‐induced confounding between time and…”
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Model misspecification in stepped wedge trials: Random effects for time or treatment by Voldal, Emily C., Xia, Fan, Kenny, Avi, Heagerty, Patrick J., Hughes, James P.

“…Mixed models are commonly used to analyze stepped wedge trials (SWTs) to account for clustering and repeated measures on clusters. One critical issue…”
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Antibiotics versus Appendectomy for Acute Appendicitis — Longer-Term Outcomes by Davidson, Giana H, Flum, David R, Monsell, Sarah E, Kao, Lillian S, Voldal, Emily C, Heagerty, Patrick J, Fannon, Erin, Lavallee, Danielle C, Bizzell, Bonnie, Lawrence, Sarah O, Comstock, Bryan A, Krishnadasan, Anusha, Winchell, Robert J, Self, Wesley H, Thompson, Callie M, Farjah, Farhood, Park, Pauline K, Alam, Hasan B, Saltzman, Darin, Moran, Gregory J, Kaji, Amy H, DeUgarte, Daniel A, Salzberg, Matthew, Ferrigno, Lisa, Mandell, Katherine A, Price, Thea P, Siparsky, Nicole, Glaser, Jacob, Ayoung-Chee, Patricia, Chiang, William, Victory, Jesse, Chung, Bruce, Carter, Damien W, Kutcher, Matthew E, Jones, Alan, Holihan, Julie, Liang, Mike K, Faine, Brett A, Cuschieri, Joseph, Evans, Heather L, Johnson, Jeffrey, Patton, Joe H, Coleman, Natasha, Fischkoff, Katherine, Drake, F Thurston, Sanchez, Sabrina E, Parsons, Charles, Odom, Stephen R, Kessler, Larry G, Talan, David A

“…In this randomized trial comparing antibiotic treatment with appendectomy in patients with appendicitis, the percentage of patients in the antibiotics group…”
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Random effect misspecification in stepped wedge designs by Voldal, Emily C, Xia, Fan, Kenny, Avi, Heagerty, Patrick J, Hughes, James P

“…Stepped wedge cluster randomized trials are often analysed using linear mixed effects models that may include random effects for cluster, time and/or…”
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swCRTdesign: An RPackage for Stepped Wedge Trial Design and Analysis by Voldal, Emily C., Hakhu, Navneet R., Xia, Fan, Heagerty, Patrick J., Hughes, James P.

“…•We introduce an Rpackage ‘swCRTdesign’ for stepped wedge trials (SWTs).•Uses a random effects model.•Can calculate power, simulate data, and create summaries…”
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swCRTdesign: An R Package for Stepped Wedge Trial Design and Analysis by Voldal, Emily C., Hakhu, Navneet R., Xia, Fan, Heagerty, Patrick J., Hughes, James P.

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Patient Factors Associated With Appendectomy Within 30 Days of Initiating Antibiotic Treatment for Appendicitis by Monsell, Sarah E, Voldal, Emily C, Davidson, Giana H, Fischkoff, Katherine, Coleman, Natasha, Bizzell, Bonnie, Price, Thea, Narayan, Mayur, Siparsky, Nicole, Thompson, Callie M, Ayoung-Chee, Patricia, Odom, Stephen R, Sanchez, Sabrina, Drake, F Thurston, Johnson, Jeffrey, Cuschieri, Joseph, Evans, Heather L, Liang, Mike K, McGrane, Karen, Hatch, Quinton, Victory, Jesse, Wisler, Jon, Salzberg, Matthew, Ferrigno, Lisa, Kaji, Amy, DeUgarte, Daniel A, Gibbons, Melinda Maggard, Alam, Hasan B, Scott, John, Kao, Lillian S, Self, Wesley H, Winchell, Robert J, Villegas, Cassandra M, Talan, David A, Kessler, Larry G, Lavallee, Danielle C, Krishnadasan, Anusha, Lawrence, Sarah O, Comstock, Bryan, Fannon, Erin, Flum, David R, Heagerty, Patrick J

“…Use of antibiotics for the treatment of appendicitis is safe and has been found to be noninferior to appendectomy based on self-reported health status at 30…”
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Perception of Treatment Success and Impact on Function with Antibiotics or Appendectomy for Appendicitis: A Randomized Clinical Trial with an Observational Cohort by Thompson, Callie M., Voldal, Emily C., Davidson, Giana H., Sanchez, Sabrina E., Ayoung-Chee, Patricia, Victory, Jesse, Guiden, Mary, Bizzell, Bonnie, Glaser, Jacob, Hults, Christopher, Price, Thea P., Siparsky, Nicole, Ohe, Kristin, Mandell, Katherine A., DeUgarte, Daniel A., Kaji, Amy H., Uribe, Lisandra, Kao, Lillian S., Mueck, Krislynn M., Farjah, Farhood, Self, Wesley H., Clark, Sunday, Drake, F. Thurston, Fischkoff, Katherine, Minko, Elizaveta, Cuschieri, Joseph, Faine, Brett, Skeete, Dionne A., Dhanani, Naila, Liang, Mike K., Krishnadasan, Anusha, Talan, David A., Fannon, Erin, Kessler, Larry G., Comstock, Bryan A., Heagerty, Patrick J., Monsell, Sarah E., Lawrence, Sarah O., Flum, David R., Lavallee, Danielle C.

“…To compare secondary patient reported outcomes of perceptions of treatment success and function for patients treated for appendicitis with appendectomy vs…”
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Trial Participation and Outcomes Among English-Speaking and Spanish-Speaking Patients With Appendicitis Randomized to Antibiotics: A Secondary Analysis of the CODA Randomized Clinical Trial by Serrano, Elina, Voldal, Emily C, Machado-Aranda, David, DeUgarte, Daniel A, Kao, Lillian, Drake, Thurston, Winchell, Robert, Cuschieri, Joseph, Krishnadasan, Anusha, Talan, David A, Siparsky, Nicole, Ayoung-Chee, Patricia, Self, Wesley H, McGonagill, Patrick, Mandell, Katherine A, Liang, Mike K, Dodwad, Shan-Jahan, Thompson, Callie M, Padilla, Reynaldo M, Fleischman, Ross, Price, Thea P, Jones, Alan, Bernardi, Karla, Garcia, Luis, Evans, Heather L, Sanchez, Sabrina E, Odom, Stephen, Comstock, Bryan A, Heagerty, Patrick J, Lawrence, Sarah O, Monsell, Sarah E, Fannon, Erin E C, Kessler, Larry G, Flum, David R, Davidson, Giana H

“…Spanish-speaking participants are underrepresented in clinical trials, limiting study generalizability and contributing to ongoing health inequity. The…”
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Appendiceal neoplasms in patients treated with antibiotics for acute appendicitis: secondary analysis of the CODA randomized clinical trial

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Association of Patient Belief About Success of Antibiotics for Appendicitis and Outcomes: A Secondary Analysis of the CODA Randomized Clinical Trial by Zhang, Irene Y, Voldal, Emily C, Davidson, Giana H, Liao, Joshua M, Thompson, Callie M, Self, Wesley H, Kao, Lillian S, Cherry-Bukowiec, Jill, Raghavendran, Krishnan, Kaji, Amy H, DeUgarte, Daniel A, Gonzalez, Eva, Mandell, Katherine A, Ohe, Kristen, Siparsky, Nicole, Price, Thea P, Evans, David C, Victory, Jesse, Chiang, William, Jones, Alan, Kutcher, Matthew E, Ciomperlik, Hailie, Liang, Mike K, Evans, Heather L, Faine, Brett A, Neufeld, Miriam, Sanchez, Sabrina E, Krishnadasan, Anusha, Comstock, Bryan A, Heagerty, Patrick J, Lawrence, Sarah O, Monsell, Sarah E, Fannon, Erin E C, Kessler, Larry G, Talan, David A, Flum, David R

“…A patient's belief in the likely success of a treatment may influence outcomes, but this has been understudied in surgical trials. To examine the association…”
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Self-selection vs Randomized Assignment of Treatment for Appendicitis by Davidson, Giana H, Monsell, Sarah E, Evans, Heather, Voldal, Emily C, Fannon, Erin, Lawrence, Sarah O, Krishnadasan, Anusha, Talan, David A, Bizzell, Bonnie, Heagerty, Patrick J, Comstock, Bryan A, Lavallee, Danielle C, Villegas, Cassandra, Winchell, Robert, Thompson, Callie M, Self, Wesley H, Kao, Lillian S, Dodwad, Shah-Jahan, Sabbatini, Amber K, Droullard, David, Machado-Aranda, David, Gibbons, Melinda Maggard, Kaji, Amy H, DeUgarte, Daniel A, Ferrigno, Lisa, Salzberg, Matthew, Mandell, Katherine A, Siparsky, Nicole, Price, Thea P, Raman, Anooradha, Corsa, Joshua, Wisler, Jon, Ayoung-Chee, Patricia, Victory, Jesse, Jones, Alan, Kutcher, Matthew, McGrane, Karen, Holihan, Julie, Liang, Mike K, Cuschieri, Joseph, Johnson, Jeffrey, Fischkoff, Katherine, Drake, F Thurston, Sanchez, Sabrina E, Odom, Stephen R, Kessler, Larry G, Flum, David R

“…For adults with appendicitis, several randomized clinical trials have demonstrated that antibiotics are an effective alternative to appendectomy. However, it…”
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Analysis of Outcomes Associated With Outpatient Management of Nonoperatively Treated Patients With Appendicitis by Parsons, Charles, Odom, Stephen, Cooper, Randall, Fischkoff, Katherine, Putnam, Brant, Kim, Dennis, Howell, Erin C., Spence, Lara H., Fleischman, Ross, Wolff, Erika, Farjah, Farhood, Arif, Hikmatullah, Pullar, Kelsey, Hennessey, Laura, Hayward, Alyssa, Hayes, Lillian Adrianna, Sohn, Vance, Chung, Bruce, Carter, Damien, MacKenzie, David, Burris, Debra, Mack, Joseph, Gerry, Terilee, Saltzman, Darin, Mireles, Debbie, Chen, Formosa, Pathmarajah, Kavitha, Schmit, Paul J, Bennion, Robert, Gibbons, Melinda, Wolfe, Bruce, Skopin, Elliott, VanDusen, Heather, Deeney, Kimberly, Guiden, Mary, Weiss, Meridith, Hernandez, Miriam, Tudor, Brandon, Foster, Careen, Schaetzel, Shaina, Morris, Arden, Morgan, Dayna, Tschirhart, John, Wallick, Julie, Mandell, Katherine, Martinez, Ryan, Wells, Sean, Steinberg, Steven, Maggi, Jason, Pierce, Kristyn, Melis, Marcovalerio, Abouzeid, Mohamad, Shah, Paresh, Sinha, Prashant, Fairfield, Cathy, Skeete, Dionne, Hsu, Cindy, Raghavendran, Krishnan, Haas, Nathan, Olbrich, Norman, Park, Pauline, Alam, Hasan, Patki, Deepti, Peacock, Rebekah K., Yealy, Donald M., Lew, Debbie, Bernardi, Karla, Dhanani, Naila, Olavarria, Oscar, Marquez, Stephanie, Ko, Tien C., Sabbatini, Amber, Williams, Estell, Horvath, Karen, Parr, Zoe, Miller, Karen F., Moser, Kelly M., Wiebusch, Abigail, Yu, Julianna, Osborn, Scott, Johnsson, Billie, Ballman, Karla, Mount, Lauren, Winchell, Robert J., Clark, Sunday, Diflo, Thomas, O’Connor, Kathleen, Owens, Olga, Talan, David A., Moran, Gregory J., Krishnadasan, Anusha, Monsell, Sarah E., Faine, Brett A., Uribe, Lisandra, Kaji, Amy H., DeUgarte, Daniel A., Self, Wesley H., Shapiro, Nathan I., Cuschieri, Joseph, Glaser, Jacob

“…Importance In the Comparison of Outcomes of Antibiotic Drugs and Appendectomy (CODA) trial, which found antibiotics to be noninferior, approximately half of…”
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