Supporting data for “Effects of Community-based Lifestyle Programs on Physical Activity Levels in Overweight and Obese Adults with Prediabetes”.

This dataset supports a validation study evaluating the Chinese International Physical Activity Questionnaire-Short Form (cIPAQ-SF) in overweight/obese Chinese adults. The research aimed to:Assess criterion validity of cIPAQ-SF against activPAL (objective gold standard) for measuring sedentary behavior and physical activity (PA).Evaluate test-retest reliability of cIPAQ-SF over a 1-week interval.Data File Descriptions1. Master_Data_v1.0.savContains merged anonymized records for all 80 participants, integrating:Sociodemographics: Age, sex, education, income (categorized to protect privacy).Clinical measures: Body weight, BMI (kg/m²), weight status (overweight/obese).Self-reported PA: Sedentary times, MPA/VPA/MVPA from two cIPAQ-SF administrations (Self1 = baseline, Self2 = 1-week retest).Device-measured PA: activPAL-derived sedentary times and cadence-based PA (MPA/VPA/MVPA).Analytical variables: PA category flags, WHO guideline compliance indicators, Bland-Altman comparison metrics.2. Analysis_ScriptsHouses computational tools for reproducibility:IPAQ_Validation_Syntax_v1.sps: SPSS script for statistical analyses (correlations, ICC, Bland-Altman).Key Characteristics of the DataTemporal Alignment:Device measurements (activPAL) correspond directly to the 7-day period covered by the second cIPAQ-SF (Self2).PA Calculation Methods:Self-reported MVPA: MPA + 2×VPA (IPAQ scoring protocol).Device MVPA: Sum of all stepping events ≥100 steps/min.Anonymization:Direct identifiers removed; sensitive variables (e.g., income, rare diseases) aggregated or suppressed per IRB requirements.Reusability Focus:Designed for replication of validation analyses or meta-studies on PA assessment in obese populations.Ethical Compliance:Data sharing adheres to IRB approvals (HKU: UW24-276).Sensitive raw data (e.g., activPAL proprietary files, unaggregated clinical details) are excluded.