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Assessing Postoperative Pain in Patients Who Underwent Total Knee Arthroplasty Using an Automated Self-Logging Patient-Reported Outcome Measure Collection Device: Retrospective Cohort Study

Assessing Postoperative Pain in Patients Who Underwent Total Knee Arthroplasty Using an Automated Self-Logging Patient-Reported Outcome Measure Collection Device: Retrospective Cohort Study

In correlating the VAS with 24-hour postoperative mean pain scores, there was a very low correlation (r=0.139) and an extremely low correlation with maximum pain score 24 hours postoperatively (r=0.078). This indicates that preoperative and postoperative pain were not correlated.

Prabjit Ajrawat, Blaine Price, Daniel Gooch, Rudolf Serban, Ruqaiya Al-Habsi, Oliver Pearce

JMIR Hum Factors 2025;12:e65271

Measuring Stress, Socialization, and Smoking Behaviors Among Lesbian, Gay, Bisexual, Transgender, Queer, and Other Sexual and Gender Minority Adolescents (the Puff Break Research Study): Protocol for a Ecological Momentary Assessment Study

Measuring Stress, Socialization, and Smoking Behaviors Among Lesbian, Gay, Bisexual, Transgender, Queer, and Other Sexual and Gender Minority Adolescents (the Puff Break Research Study): Protocol for a Ecological Momentary Assessment Study

We will investigate missing data on exposures, covariates, and outcomes by summarizing the degree of missing on each variable and potential patterns of missing (eg, by participants and across variables) using data visualization techniques in R software (version 4.3.3; R Foundation for Statistical Computing).

Linda Salgin, Daniel Kellogg, Jonathan Helm, Aaron J Blashill, Mark Myers, Hee-Jin Jun, Andy C Lim, Jerel P Calzo

JMIR Res Protoc 2025;14:e71927