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Descriptive real-world cohort analysis without control group, prospective design, or mechanism of action attribution; weight loss observed but causality to the pathway cannot be established from this uncontrolled, selected cohort.
A cross-sectional cluster analysis of registry data identifying five obesity phenotypes; descriptive and hypothesis-generating rather than testing a causal relationship or clinical outcome, and without a comparator or intervention effect.
A narrative review synthesizing evidence on psychological-dietary interactions in chronic disease, proposing an integrated management framework; presents current understanding but explicitly acknowledges that clinical effectiveness and implementation require further evaluation.
A single-centre qualitative descriptive study with no quantitative outcomes, control group, or statistical analysis; provides exploratory insights into patient experiences but cannot establish efficacy or guide clinical practice.
Cross-sectional observational study with associations only; no intervention tested, no comparator group, and findings are descriptive of perception gaps rather than causal mechanisms or treatment effects.
International Journal of Academic Excellence and Research
A descriptive cross-sectional survey of knowledge and behavioral patterns in a single demographic group; provides formative data on awareness gaps but lacks a comparator, control group, or hard clinical outcomes, and is limited to one region and one age/sex group.
Retrospective observational study in a single specialized centre with modest sample size (n=141) showing associations between ACE categories and psychiatric outcomes in severe obesity; clear methodology and specific effect sizes reported, but limited by observational design and lack of comparator group.
Cross-sectional study with clear mediation findings in a defined post-surgical population; sound statistical approach but observational design and lack of clinical outcome validation limit strength.