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

<p dir="ltr">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:</p><ol><li>Assess criterion validity of cIPAQ-SF against activPAL (objective gold standard) for measuring sedentary behavior and physical activity (PA).</li><li>Evaluate test-retest reliability of cIPAQ-SF over a 1-week interval.<br><br>Data File Descriptions</li></ol><h4>1. <code><strong>Master_Data_v1.0.sav</strong></code></h4><p dir="ltr">Contains <b>merged anonymized records for all 80 participants</b>, integrating:</p><ul><li><i>Sociodemographics</i>: Age, sex, education, income (categorized to protect privacy).</li><li><i>Clinical measures</i>: Body weight, BMI (kg/m²), weight status (overweight/obese).</li><li><i>Self-reported PA</i>: Sedentary times, MPA/VPA/MVPA from <b>two cIPAQ-SF administrations</b> (Self1 = baseline, Self2 = 1-week retest).</li><li><i>Device-measured PA</i>: activPAL-derived sedentary times and cadence-based PA (MPA/VPA/MVPA).</li><li><i>Analytical variables</i>: PA category flags, WHO guideline compliance indicators, Bland-Altman comparison metrics.</li></ul><h4>2. <code><strong>Analysis_Scripts</strong></code></h4><p dir="ltr">Houses computational tools for reproducibility:</p><ul><li><code><strong>IPAQ_Validation_Syntax_v1.sps</strong></code>: SPSS script for statistical analyses (correlations, ICC, Bland-Altman).</li></ul><h3>Key Characteristics of the Data</h3><ul><li><b>Temporal Alignment</b>:<br>Device measurements (activPAL) correspond directly to the 7-day period covered by the <b>second cIPAQ-SF</b> (Self2).</li><li><b>PA Calculation Methods</b>:</li><li><ul><li><i>Self-reported MVPA</i>: <code>MPA + 2×VPA</code> (IPAQ scoring protocol).</li><li><i>Device MVPA</i>: Sum of all stepping events ≥100 steps/min.</li></ul></li><li><b>Anonymization</b>:<br>Direct identifiers removed; sensitive variables (e.g., income, rare diseases) aggregated or suppressed per IRB requirements.</li><li><b>Reusability Focus</b>:<br>Designed for replication of validation analyses or meta-studies on PA assessment in obese populations.</li></ul><blockquote><p dir="ltr"><b>Ethical Compliance</b>:<br>Data sharing adheres to IRB approvals (HKU: UW24-276).<br>Sensitive raw data (e.g., activPAL proprietary files, unaggregated clinical details) are excluded.</p></blockquote><p><br></p>