Exact(1)
Second, despite the relatively large sample size, secondary analyses conducted using binary patient categories had smaller sample sizes and may have reduced power to detect true difference between subgroups.
Similar(57)
Even though the sample size of secondary chronic headache may seem small, this is the largest sample of subjects with secondary chronic headache recruited from the general population.
Limitations of the study include small sample size for secondary outcomes and slow recruitment.
Given the small sample size this secondary analysis must be replicated.
To ensure adequate sample size for secondary outcomes and to account for attrition and missing data, we aimed to recruit 75 subjects per group.
In hypothesis-testing science, the consideration of sample size is secondary to more primary considerations of quality of the measures and correctness of design.
Due to the small sample size, certain secondary observations may not have reached statistical significance; nevertheless, the fact that statistically significant associations emerged and persisted at the multivariate analysis, points to the validity and robustness of the findings presented herein.
In a qualitative systematic review published in 2014, the use of the Disabilities of Arm, Shoulder and Hand (DASH) questionnaire is recommended for this population [ 51], although the results should be interpreted with caution, as most studies had limitations such as small sample sizes and secondary problems like lymphedema.
The significant contributions lie in the larger sample size, use of secondary and primary research, and application of quantitative and qualitative analysis.
(weighted results; unweighted sample size: maximum lower secondary school leaving certificate: 1051; intermediate school leaving certificate: 1585; qualification for higher education: 1577).
The sample size of the secondary sampling unit (milking cow) in each farm was determined at the farm based on a card indicating sample sizes at different herd sizes for disease detection prepared prior to the survey using FreeCalc version 2 (Australian Veterinary Animal Health Services).
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