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Chao-bin He, Yu Zhang, Zhi-yuan Cai, and Xiao-jun Lin

statistically significant. Independent risk factors identified in the multivariate analysis were used to construct nomogram to predict OS. Competing risk nomogram was built on the basis of Fine and Grey’s model. The discrimination and calibration power were

Open access

Ana Carolina de Jesus Paniza, Thais Biude Mendes, Matheus Duarte Borges Viana, Débora Mota Dias Thomaz, Paula B O Chiappini, Gabriel A Colozza-Gama, Susan Chow Lindsey, Marcos Brasilino de Carvalho, Venâncio Avancini Ferreira Alves, Otavio Curioni, André Uchimura Bastos, and Janete Maria Cerutti

more subtle than FVPTC and mainly localized to the periphery of the neoplasm), no psammoma bodies, no necrosis, and no more than three mitoses per 10 high-power fields (400×) are the most recent criteria used for this diagnostic category ( 14 ). Based

Open access

Martine Cohen-Solal, Thomas Funck-Brentano, and Pablo Ureña Torres

-resolution peripheral quantitative CT (HR-pQCT) measurement BMD measurement by DEXA alone is insufficient to assess fracture risk because of a weak discriminating power of DEXA to assess cortical and trabecular bone. In CKD, low-bone turnover is associated with thin

Open access

Ailsa Maria Main, Maria Rossing, Line Borgwardt, Birgitte Grønkær Toft, Åse Krogh Rasmussen, and Ulla Feldt-Rasmussen

results are descriptive. Due to low numbers in the subgroups, we neither performed statistical analysis nor power calculations for these results. All SDHX variant positive patients were grouped according to their respective variants. Thus, a group of

Open access

E R Polina, F M Oliveira, R C Sbruzzi, D Crispim, L H Canani, and K G Santos

and no previous study has investigated the association of the rs767649 polymorphism with this complication, sample size and study power were not determined a priori . In relation to the plasma levels of miR-155, we used the results obtained in a

Open access

Ana P Estrada-Flórez, Mabel E Bohórquez, Alejandro Vélez, Carlos S Duque, Jorge H Donado, Gilbert Mateus, Cesar Panqueba-Tarazona, Guadalupe Polanco-Echeverry, Ruta Sahasrabudhe, Magdalena Echeverry, and Luis G Carvajal-Carmona

subtype could be more aggressive than FVPTCs. We acknowledge that out failure to detect differences in clinical manifestations between the two histological subtypes is likely the result of limited power given our small sample size. We found TERT

Open access

Mardia López-Alarcón, Jessie N Zurita-Cruz, Alonso Torres-Rodríguez, Karla Bedia-Mejía, Manuel Pérez-Güemez, Leonel Jaramillo-Villanueva, Mario E Rendón-Macías, Jose R Fernández, and Patricia Martínez-Maroñas

) and 1.8 ± 1.7 kg body weight ( 10 ) were reported in adults exposed to mindfulness interventions, we used these values to estimate sample size. Considering an 80% power and alpha 0.05, the estimated sample was 22 children; 20% was added to replace

Open access

Silan Zheng, Meifeng Tong, Lianqin Dong, Chunmin Du, Xin Zheng, Liying Wang, Peiying Huang, Wei Liu, Mingzhu Lin, and Changqin Liu

.0 software (IBM Corporation). Based on the average of LAP between the two groups by the cut-offs of 248 dB/m of CAP, ɑ being set to 5%, power being 90%, and P values being two-sided, the total sample size will be at least 66 subjects. The Kolmogorov

Open access

Xiaoya Zheng, Heng Xiao, Jian Long, Qiang Wei, Liping Liu, Liping Zan, and Wei Ren

is that the number of patients included is relatively small, and the event rate is accordingly low, thereby limiting the power and reliability of the statistical analysis. It is difficult to draw a statistically significant conclusion if a subgroup

Open access

Mabel E Bohórquez, Ana P Estrada, Jacob Stultz, Ruta Sahasrabudhe, John Williamson, Paul Lott, Carlos S Duque, Jorge Donado, Gilbert Mateus, Fernando Bolaños, Alejandro Vélez, Magdalena Echeverry, and Luis G Carvajal-Carmona

and Chinese populations, we failed to replicate association between HABP2 G534E and TC risk in Hispanic population as well. We, however, acknowledge that our study may have limited power to detect the low-penetrance effect of a variant that is