Sample size determination for logistic regression on a logit-normal distribution

Kim, Seongho; Heath, Elisabeth I.; Heilbrun, Lance K.

doi:10.1177/0962280215572407

Cited by 14 publications

(10 citation statements)

References 11 publications

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“…A recent statistical paper presents findings that the sample size for multivariable logistic regression can be determined using information on outcome measures [20]. Additionally, a previous study revealed that events per variable values of 10 or greater indicate no major problems [21].…”

Section: Design Settings and Participantsmentioning

confidence: 99%

Factors related to turnover intentions and work-related injuries and accidents among professional caregivers: a cross-sectional questionnaire study

Tei-Tominaga

Nakanishi

2020

Environ Health Prev Med

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Background: The Japanese health and welfare industry has a shortage of professional caregivers, and work-related accidents and injuries among this group are therefore especially critical issues. This study aimed to examine the factors associated with turnover intentions and work-related injuries and accidents among professional caregivers in Japan. Methods: Self-report questionnaires were distributed to care workers (N = 1396) at 26 geriatric-care facilities. The questionnaire addressed basic attributes, work and organizational characteristics, wage adequacy, and intrinsic motivations for work (e.g., "being suited to caring work"). Social-relational aspects of the work environment were assessed via three subscales of the Social Capital and Ethical Climate in the Workplace instrument (i.e., "Social Capital in the Workplace," "Exclusive Workplace Climate," and "Ethical Leadership"). Dependent variables were the experience of work-related accidents or injuries in the prior year and organizational and occupational turnover intentions. We used datasets of professional caregivers for analyses. Results: The response rate was 68% (N = 949). Among the 667 professional caregivers, 63% were female. On multivariable logistic regression analysis for work-related accidents and injuries for each sex, those with higher scores for "being suited to caring work" were found to experience significantly fewer work-related accidents and injuries (odds ratio [OR] = 0.78, p < 0.01) among female caregivers. Male caregivers who perceived an exclusive workplace climate experienced more work-related accidents and injuries (OR = 1.61, p < 0.01). However, experience of work-related accidents and injuries did not show significant relationships with organizational and occupational turnover intentions. Additionally, "being suited to caring work" (OR = 0.73, p < 0.01) and ethical leadership (OR = 0.76, p < 0.05) were found to be negatively associated with organizational turnover intentions. "Being suited to caring work" (OR = 0.61, p < 0.01), inadequacy of wage (OR = 2.22, p < 0.05), and marital status (OR = 2.69, p < 0.01) were also associated with occupational turnover intentions of professional caregivers.

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Section: Design Settings and Participantsmentioning

confidence: 99%

Factors related to turnover intentions and work-related injuries and accidents among professional caregivers: a cross-sectional questionnaire study

Tei-Tominaga

Nakanishi

2020

Environ Health Prev Med

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“…In addition to repeated measures of Cobb angles (raw value), we adopted a logistic regression analysis to investigate the correlation of curve pattern with scoliosis progression after 2 years of PSSE using a clinical significance threshold (D-value of a change in Cobb angle: ≥ 6 degrees). This showed a value of clinical practice, but the analysis was underpowered regarding the small sample size [ 53 ]. Thus, a study with a bigger sample size is required to detect the correlation of curve pattern with scoliosis progression after PSSE treatment.…”

Section: Discussionmentioning

confidence: 99%

Does curve pattern impact on the effects of physiotherapeutic scoliosis specific exercises on Cobb angles of participants with adolescent idiopathic scoliosis: A prospective clinical trial with two years follow-up

Fan

Yeung

et al. 2021

PLoS ONE

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Background Current clinical evidence suggests that a well-planned physiotherapeutic scoliosis specific exercise (PSSE) program is effective for scoliosis regression. Objectives We investigated the effect of curve patterns on Cobb angles with PSSE. Methods This was a non-randomized prospective clinical trial that recruited participants with adolescent idiopathic scoliosis between January and June 2017. Participants were grouped by curve pattern into major thoracic and major lumbar groups. An outpatient-based PSSE program was conducted with the following schedule of intensive exercise: ≥ 1 session of supervised PSSE per month and > 30min of home exercise 5 days/week in the first 6 months, after which exercise frequency was reduced to 1 session of supervised PSSE every three months and > 30min of home exercise 5 days/week until 2 years after study initiation. Radiographic Cobb angle progressions were identified at the 1, 1.5 and 2-year follow-ups. A mixed model analysis of variance (ANOVA) was performed to examine the differences in Cobb angles between groups at four testing time points. The two-tailed significance level was set to 0.05. Results In total, 40 participants were recruited, including 22 with major thoracic curves (5 males and 17 females; mean age 13.5±1.8 years; Cobb angle 18–45 degrees) and 18 with major lumbar curves (7 males and 11 females; mean age 12.7±1.7 years; Cobb angle 15–48 degrees). Curve regressions, namely the reduction of Cobb angles between 7 to 10 degrees were noted in 9.1% of participants in the major thoracic group; reductions of 6 to 13 degrees were noted in 33.3% of participants in the major lumbar group at the 2-year follow-up. Repeated measurements revealed a significant time effect (F2.2,79.8 = 4.1, p = 0.02), but no group (F2.2,79.8 = 2.3, p = 0.1) or time × group (F1,37 = 0.97, p = 0.3) effects in reducing Cobb angles after 2 years of PSSE. A logistic regression analysis revealed that no correlation was observed between curve pattern and curve regression or stabilization (OR: 0.2, 95% CI: 0.31–1.1, p = 0.068) at the 2-year follow-up. Conclusion This was the first study to investigate the long-term effects of PSSE in reducing Cobb angles on the basis of major curve location. No significant differences in correction were observed between major thoracic and major lumbar curves. A regression effect and no curve deterioration were noted in both groups at the 2-year follow-up. Trial registration ChiCTR1900028073.

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“…Kegunaan dari regresi logistik adalah untuk menguji setiap kemungkinan yang terjadi dengan adanya variabel terikat. Kemungkinan ini dapat diprediksi melalui serangkaian variabel bebas (Hemmert, Schons, Wieseke, & Schimmelpfennig, 2018;Kim, Heath, & Heilbrun, 2017;Simmonds & Higgins, 2016).…”

Section: Metodeunclassified

Kualitas Corporate Internet Reporting Di Indonesia Dan Malaysia

Hermawan

Biduri

Hariyanto

et al. 2019

jamal

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Kualitas Corporate Internet Reporting di Indonesia dan Malaysia. Penelitian ini berusaha untuk menguraikan kualitas Corpo rate Internet Reporting (CIR) perusahaan Indonesia dan Malaysia. Metode yang digunakan untuk analisis adalah regresi logistik dengan CIR perusahaan farmasi Indonesia dan Malaysia periode 2012-2016 sebagai sampel. Penelitian ini menemukan bahwa perusahaan farmasi Indonesia lebih berkualitas dalam pelaporan CIR. Implikasi dari temuan ini adalah keharusan perusahaan farmasi di Indonesia untuk melakukan peningkatan kualitas. Peningkatan ini dapat memuaskan semua stakehol ders. Sebaliknya, perusahaan farmasi di Malaysia harus berupaya untuk mengejar kualitas dan ketepatan waktu CIR.

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Sample size determination for logistic regression on a logit-normal distribution

Cited by 14 publications

References 11 publications

Factors related to turnover intentions and work-related injuries and accidents among professional caregivers: a cross-sectional questionnaire study

Factors related to turnover intentions and work-related injuries and accidents among professional caregivers: a cross-sectional questionnaire study

Does curve pattern impact on the effects of physiotherapeutic scoliosis specific exercises on Cobb angles of participants with adolescent idiopathic scoliosis: A prospective clinical trial with two years follow-up

Kualitas Corporate Internet Reporting Di Indonesia Dan Malaysia

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