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TCAG Facilities

Statistical Consulting Services

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1. Statistical Consulting Service Overview

The TCAG statistical consulting service can provide a wide range of advice and assistance:

  • advice on study design and analytical planning
  • sample size and power calculations
  • statistical analysis of study data
  • interpreting and summarizing results
  • assistance for writing grant proposals.

We are always interested in expanding our knowledge into new data types.

2. Genetic Analysis

  • Design and analysis of genetic linkage mapping studies
    • single gene disorders or complex diseases
    • discrete or quantitative traits
    • evaluation of covariate effects on linkage signals
    • mapping in natural or experimental crosses
  • Association studies of quantitative and discrete traits
    • family-based control design
    • case-control design
    • population stratification
    • single marker or multi-marker associations
    • genome-wide association analysis
  • Estimation of haplotypes in related or unrelated individuals
  • Power calculations

3. Microarray Gene Expression Analysis

  • Experimental design
    • sample size and power calculations
  • Analysis of data from various platforms (e.g. Affymetrix, exon arrays, Illumina, others)
    • pre-processing (normalization, filtering, QC metrics, visualizations, etc.)
    • identification of differentially expressed genes
  • time course studies
  • multiple experimental factors and/or interactions
    • clustering and class prediction
    • limited pathway and gene function analysis
  • Multiple hypothesis testing (e.g. control of false positive and false negative rates)
  • MicroRNA data analysis
  • Alternative splicing data analysis
  • Data integration across platforms and laboratories

4. Copy Number Variation Analysis

  • Analysis of data from different platforms (aCGH, BAC or Agilent oligonucleotide arrays, Affymetrix/Illumina SNP arrays)
  • Identification of regions containing copy number changes
  • Testing for differences in frequency of copy number changes between groups

5. Next Generation Sequence Data Analysis

  • Alignment, genome assembly, genome annotation, etc.
  • Variant detection (SNPs and structure variants)
  • Identification of enriched regions
  • Differential analysis of transcript read counts for expression profiling

6. Genome-wide Epigenetic and Epigenomic Analysis

  • Analysis of methylation array data (eg. Illumina EPIC or 450k arrays)
  • Design and power analysis of epigenetic/epigenomic studies
  • Identification of epigenetic/epigenomic signatures
  • Chromatin mapping
  • Identification of small RNAs

7. Human Microbiome and Metagenomic Analysis

  • Metagenomic assembly
  • Function analysis of microbiome
  • Biomarker discovery from microbiome data
  • Association analysis of host genomic variants with its microbiome

8. Other Data Types

We can provide advice and perform analysis for a wide variety of other data types not listed above. Some examples are:

  • Annotation of uncharacterized gene functions
  • Enrichment analysis of gene sets
  • Pathway analysis
  • Proteomic data
  • Epidemiological studies

Please contact the facility for details.

9. Statistical Analysis Pricing

The Statistical Analysis Facility provides consultative services at varying rates depending on project scope:

  • Hourly basis: $90 per hour (minimum charge of $500)
  • Weekly basis: $500 per day. Applicable for long term projects requiring dedicated personnel (minimum commitment of one day per week for at least 2 months)

For a free initial consultation and estimate, please contact the facility.

10. Support Letter

We will gladly provide investigators with a letter of support stating our willingness to assist you in grant applications. Please contact the facility.

  • Study design
  • Sample size and power calculation
  • Write statistical analysis plans
  • Provide a letter of support

11. Publications by Statistical Facility

12. Submit requests for Statistical Analysis service

Submit requests for Statistical Analysis using the Lablink server.

For instructions on creating an account, placing a request, etc., download the following document
Clarity user instructions (Acrobat 95 KB)

Complete the following Excel template to upload your requests to Clarity.
TCAG-Clarity-Statistical-Analysis-upload.xlsx

13. Facility Contacts

Liz Li, PhD, Manager

The Centre for Applied Genomics
The Hospital for Sick Children
Peter Gilgan Centre for Research and Learning
686 Bay Street, Room 12.9830
Toronto, Ontario
M5G 0A4, Canada
Tel.: 416-813-7654, (Internal: 301883)
Email:

For questions or comments contact the TCAG Manager,

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teaching and research centre dedicated exclusively to children; affiliated with the University of Toronto. For general inquires please call: 416-813-1500.
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