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Estimating the Population Size of People Who Inject Drugs in 3 Cities in Zambia: Capture-Recapture, Successive Sampling, and Bayesian Consensus Estimation Methods

Estimating the Population Size of People Who Inject Drugs in 3 Cities in Zambia: Capture-Recapture, Successive Sampling, and Bayesian Consensus Estimation Methods

history and city, Zambia, 2021. a Previously captured represents people who inject drugs who participated in the biobehavioral survey (capture 3) and reported receiving an object in captures 1 or 2. b CI: confidence interval. c P values computed using Kruskal test for difference in medians, and a survey-weighted quasi-binomial general linear model for categorical variables. d Median network size was 5, 4.5, and 3 in Livingstone, Lusaka, and Ndola, respectively. e Responses not mutually exclusive. f Indicates that P

Lauren Parmley, Giles Reid, Joyce J Neal, Brave Hanunka, Leigh Tally, Lophina Chilukutu, Tepa Nkumbula, Chipili Mulemfwe, Lazarous Chelu, Ray Handema, John Mwale, Kennedy Mutale, Lloyd Mulenga, Anne F McIntyre, Neena M Philip, Hannah Chung, Maria Lahuerta

JMIR Public Health Surveill 2025;11:e66551

Media Reports and Knowledge of e-Cigarette or Vaping Use-Associated Lung Injury Among Adolescents in California: Population-Based Cross-Sectional Study

Media Reports and Knowledge of e-Cigarette or Vaping Use-Associated Lung Injury Among Adolescents in California: Population-Based Cross-Sectional Study

In grade 8, 24.6% learned of EVALI from their parents, compared to 9.1% in grade 12 (P Table 3 shows what students believed caused EVALI. Overall, most who had heard about the condition believed nicotine was the cause (55.0%). More than 1 in 5 (22.1%) said they did not know. Marijuana was chosen by 11.1%, followed by other chemicals (4.7%). Similar percentages thought flavorings (3.5%) or other things (3.6%) were the cause.

Jijiang Wang, John Ayers, Eric Leas, Anthony Gamst, Shu-Hong Zhu

J Med Internet Res 2025;27:e69151

Concordance Between Survey and Electronic Health Record Data in the COVID-19 Citizen Science Study: Retrospective Cohort Analysis

Concordance Between Survey and Electronic Health Record Data in the COVID-19 Citizen Science Study: Retrospective Cohort Analysis

Chi-square statistics and P values were calculated. A Bonferroni correction was applied to account for multiple comparisons, adjusting the significance threshold to .002 (.05/23). P values less than .001 were reported as P For all domains, the following statistics were generated along with their 95% CI values: overall agreement (or overall accuracy), sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), and Cohen κ.

Elizabeth Crull, Emily C O'Brien, Pavel Antiperovitch, Kirubel Asfaw, Alexis L Beatty, Djeneba Audrey Djibo, Alan F Kaul, John Kornak, Gregory M Marcus, Madelaine Faulkner Modrow, Jeffrey E Olgin, Jaime Orozco, Soo Park, Noah Peyser, Mark J Pletcher, Thomas W Carton

JMIR Form Res 2025;9:e58097

Population-Based Digital Health Interventions to Deliver at-Home COVID-19 Testing: SCALE-UP II Randomized Clinical Trial

Population-Based Digital Health Interventions to Deliver at-Home COVID-19 Testing: SCALE-UP II Randomized Clinical Trial

Reach-Accept testing in the Chatbot arm was lower than in SMS text messaging (174/1051, 16.6% vs 555/1066, 52.1%; a RR 0.317, 98.33% CI 0.27‐0.38; P Reach-Accept testing was higher among participants messaged every 10 days vs every 30 days (860/15,717, 5.5% vs 752/15,722, 4.8%; a RR 1.144, 97.5% CI 1.03‐1.28; P=.01; Table 2), and lower if the participants were offered access to PN compared with those in the no PN condition (680/15,718, 4.3% vs 932/15,721, 5.9%; a RR 0.729, 97.5% CI 0.65‐0.81; P Out of 2117 participants

Guilherme Del Fiol, Tatyana V Kuzmenko, Brian Orleans, Jonathan J Chipman, Tom Greene, Ray Meads, Kimberly A Kaphingst, Bryan Gibson, Kensaku Kawamoto, Andy J King, Tracey Siaperas, Shlisa Hughes, Alan Pruhs, Courtney Pariera Dinkins, Cho Y Lam, Joni H Pierce, Ryzen Benson, Emerson P Borsato, Ryan C Cornia, Leticia Stevens, Richard L Bradshaw, Chelsey R Schlechter, David W Wetter

J Med Internet Res 2025;27:e74145

Capturing Real-World Habitual Sleep Patterns With a Novel User-Centric Algorithm to Preprocess Fitbit Data in the All of Us Research Program: Retrospective Observational Longitudinal Study

Capturing Real-World Habitual Sleep Patterns With a Novel User-Centric Algorithm to Preprocess Fitbit Data in the All of Us Research Program: Retrospective Observational Longitudinal Study

Figure 5 and Multimedia Appendix 4 show significant interactions between the algorithm applied and all key sleep metrics across quartiles (P Boxplots of paired differences between user-centric (TSP) and calendar-relative (is Main Sleep) algorithms for each of the key hypothesized sleep metrics across the quartiles of variation from typical sleep patterns. Box bounds, midline, and whiskers represent the IQR, median, and 1.5 × IQR, respectively.

Hiral Master, Jeffrey Annis, Jack H Ching, Karla Gleichauf, Lide Han, Peyton Coleman, Kelsie M Full, Neil Zheng, Douglas Ruderfer, John Hernandez, Logan D Schneider, Evan L Brittain

J Med Internet Res 2025;27:e71718