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CH Instruments χ 2 (chi-squared) method
χ 2 (Chi Squared) Method, supplied by CH Instruments, 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/%CF%87+2+method+(chi-square)/chi+square++%CF%872++test/pmc10341486-217-13-15
Average 90 stars, based on 1 article reviews
χ 2 (chi-squared) method - by Bioz Stars, 2026-09
90/100 stars

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Article Title: A novel odor stimulation system in freely moving, behaving animals.
Article Snippet: Precise and reliable presentation of odorants to animals is crucial for olfactory studies.. Although odor stimulation systems in anesthetized or awake, head-fixed animals are well established, temporally precise odor presentation in awake, freely moving animals remains a challenge.. Here, we describe a new odor stimulation system which presents odors directly to the nostrils of freely moving mice.

Article Title: Evaluation of the Use of Dual Antiplatelet Therapy beyond the First Year after Acute Coronary Syndrome
Article Snippet: The association of each of the study variables with extended APT was evaluated using the χ 2 method (chi-square) for qualitative variables and Student’s t -test for quantitative variables, defining a value of p < 0.05 as significant.

Article Title: Dexmedetomidine reduces postoperative cognitive and behavioral dysfunction in adults submitted to general anesthesia for non-cardiac surgery: meta-analysis of randomized clinical trials
Article Snippet: Statistical heterogeneity was calculated using the chi-square method (χ 2 ) and the Higgins test (I 2 ).

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Article Snippet: Differences in allele frequencies between melanoma patients and the control groups were evaluated using the chi-square method ( χ 2 , Mantel–Haenszel) using 3 × 2 or 2 × 2 contingency tables.

Article Title: The Association between Age, Comorbidities and Use of Radiotherapy in Women with Breast Cancer: Implications for Survival
Article Snippet: Statistical significance for categorical variables was tested using the chi-square (χ 2 ) procedure and the Kruskal–Wallis H test for continuous variables.

Article Title: Pathologic Complete Response (pCR) and Survival of Women with Inflammatory Breast Cancer (IBC): An Analysis Based on Biologic Subtypes and Demographic Characteristics
Article Snippet: Statistical significance for categorical variables was tested using the chi-square (χ 2 ) procedure and the Kruskal-Wallis H test for continuous variables.

Article Title: The association of obesity with eating disorders risk: online survey of a large cohort of Russian-speaking individuals seeking medical weight correction assistance
Article Snippet: The categorical variables such as age (4 groups), sex (2 groups), BMI (2 groups), and EAT-26 (2 groups) were presented as frequency and percentage (%) and were analyzed by cross-tab method with Pearson Chi-Square test (χ 2 ) or with Fisher exact test to observe differences.

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CH Instruments chi-square (χ 2 ) method
Two curated data <t>sources</t> <t>(DrugBank</t> and <t>CTD)</t> and two computational methods (Chi2 and BITOLA) were selected to compare against the performance of our approach on AD drug identifications. DrugBank and CTD manually curated database content about disease-modifying gene/proteins and drugs. Chi2 is a baseline system using commonly Chi-square statistical method to identify significant co-occurring drug-disease relationships cited in PubMed abstracts. BITOLA (Biomedical Discovery Support System) is a computational system based on natural language processing that can extract drug-protein relation in a disease context. The histogram shows sensitivity, specificity, PPV (positive predictive value), F-score, and ACC (accuracy) of each group. These performance measurements are defined in the section.
Chi Square (χ 2 ) Method, supplied by CH Instruments, 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/%CF%87+2+method+(chi-square)/chi+square++%CF%872++test/pmc02709445-196-9-21
Average 90 stars, based on 1 article reviews
chi-square (χ 2 ) method - by Bioz Stars, 2026-09
90/100 stars
  Buy from Supplier

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Two curated data sources (DrugBank and CTD) and two computational methods (Chi2 and BITOLA) were selected to compare against the performance of our approach on AD drug identifications. DrugBank and CTD manually curated database content about disease-modifying gene/proteins and drugs. Chi2 is a baseline system using commonly Chi-square statistical method to identify significant co-occurring drug-disease relationships cited in PubMed abstracts. BITOLA (Biomedical Discovery Support System) is a computational system based on natural language processing that can extract drug-protein relation in a disease context. The histogram shows sensitivity, specificity, PPV (positive predictive value), F-score, and ACC (accuracy) of each group. These performance measurements are defined in the section.

Journal: PLoS Computational Biology

Article Title: Building Disease-Specific Drug-Protein Connectivity Maps from Molecular Interaction Networks and PubMed Abstracts

doi: 10.1371/journal.pcbi.1000450

Figure Lengend Snippet: Two curated data sources (DrugBank and CTD) and two computational methods (Chi2 and BITOLA) were selected to compare against the performance of our approach on AD drug identifications. DrugBank and CTD manually curated database content about disease-modifying gene/proteins and drugs. Chi2 is a baseline system using commonly Chi-square statistical method to identify significant co-occurring drug-disease relationships cited in PubMed abstracts. BITOLA (Biomedical Discovery Support System) is a computational system based on natural language processing that can extract drug-protein relation in a disease context. The histogram shows sensitivity, specificity, PPV (positive predictive value), F-score, and ACC (accuracy) of each group. These performance measurements are defined in the section.

Article Snippet: The four systems that we compared includes: DrugBank , CTD (the Comparative Toxicogenomics Database) , a baseline system using the common Chi-square (χ 2 ) method , and BITOLA (Biomedical Discovery Support System) .

Techniques: