Estimated sample size for assessment of preventive oral health behaviour of dental students using a prevalence of 47% reported by Khami et al [ 15], 95% confidence interval and an error margin of 5% was 382.
Strengths of this study include the randomized design, the central adjudication of fractures, and the large sample size for assessment of fractures and falls.
The target sample size for assessment of accessibility was 50 pharmacies per drug, per district.
The mean sample size for assessment of prostate tumors and benign prostatic hyperplasia was 327 ± 280.12.
To ensure an adequate sample size for assessment of the primary efficacy outcome in the randomized-withdrawal period, additional patients were recruited from new study sites in the USA [ 9].
A study with appropriately powered sample size, validation of assessment tools, and pre-intervention knowledge measurement in the future may be able to confirm findings declared in the study.
Due to the small sample size of this assessment, several limitations need to be considered.
Our study was primarily limited by sample size of the assessment cohort, the duration of the curriculum, the short-term follow-up, and the complex nature of NTS development.
The size of an assessment factor that is used to derive a PNEC from these tests should cover several uncertainties such as intra- and interspecies variations, short- to long-term toxicity extrapolation, intra- and inter-laboratory variation or laboratory-to-field extrapolation [3, 14].
One concern was the size of the assessment documentation once printed.
Key uncertainties remain including how have the driving forces for hypoxia, e.g., climate(19) and nutrient loading, changed through time in the Baltic Sea coastal zone, and do they vary during the same time periods that hypoxia varies in the open waters?(16) An important consideration in determining the number of ecosystems experiencing hypoxia is the size of the assessment unit.
