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stata sampsi function  (STATA Corporation)


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    STATA Corporation stata sampsi function
    Stata Sampsi Function, supplied by STATA Corporation, used in various techniques. Bioz Stars score: 90/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
    https://www.bioz.com/product/sampsi+function/stata+command+sampsi/pmc08659352-109-10-7
    Average 90 stars, based on 1 article reviews
    stata sampsi function - by Bioz Stars, 2026-11
    90/100 stars

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    Article Title: The effect of prehabilitation for older patients awaiting total hip replacement. A randomized controlled trial with long-term follow up.
    Article Snippet: However, by using the Stata command sampsi, the recalculation still ensured 80% statistical power with an ANCOVA model, assuming a correlation of 0.5 between the baseline and follow-up measurement.

    Article Title: Efficacy of therapist-delivered transdiagnostic CBT for patients with persistent physical symptoms in secondary care: a randomised controlled trial
    Article Snippet: The sample size calculation (Stata command sampsi) suggests that 161 patients per arm (322 in total) were needed to detect this effect size with 90.14% power after inflation to allow for an attrition rate of 25% and deflation for including baseline measures in the analysis model (factor 0.84 assuming a correlation between baseline and 52-week WSAS of 0.4) (Borm, Fransen, & Lemmens, 2007).

    Article Title: Online Parent Training for The Initial Management of ADHD referrals (OPTIMA): the protocol for a randomised controlled trial of a digital parenting intervention implemented to support parents and children on a treatment waitlist
    Article Snippet: Using Stata (version 14.0) command sampsi, ANCOVA analysis with a conservative zero correlation assumed between baseline and primary endpoint SNAP-IV ODD score, a two-sided test and an alpha of 0.05, we estimated that 176 individuals will be needed per trial arm (total n = 352) to provide 90% power to test the hypothesis that STEPS is superior to WAU.

    Article Title: Effectiveness of Training and Use of Novasil Binder in Mitigating Aflatoxins in Cow Milk Produced in Smallholder Farms in Urban and Periurban Areas of Kenya
    Article Snippet: Sample size was determined using the formula proposed by Metcalfe (2001); STATA sampsi 0.7 0.2, p(0.5) r(2) (assuming a reduction of positive farmers from 70 to 20%, using a power of 50% and a ratio of 2).

    Article Title: Evaluation of facial cleanliness and environmental improvement activities: Lessons learned from Malawi, Tanzania, and Uganda
    Article Snippet: The sample size calculations were performed in STATA using the “sampsi” function.

    Article Title: Hip strengthening exercise dosage is not associated with clinical improvements after total hip arthroplasty – a prospective cohort study (the PHETHAS-1 study)
    Article Snippet: The sample size calculation was done using the Stata command: sampsi_reg [ ].

    Article Title: Efficacy of therapist-delivered transdiagnostic CBT for patients with persistent physical symptoms in secondary care: a randomised controlled trial
    Article Snippet: The sample size calculation (Stata command sampsi) suggests that 161 patients per arm (322 in total) were needed to detect this effect size with 90.14% power after inflation to allow for an attrition rate of 25% and deflation for including baseline measures in the analysis model (factor 0.84 assuming a correlation between baseline and 52-week WSAS of 0.4) (Borm, Fransen, & Lemmens, ).



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