How to Prepare a Strong Table

Why tables matter

Tables are useful when you need to present detailed information in a compact format. They allow readers to compare groups, examine patterns, and understand key findings quickly.

A strong table helps to:

• Present complex data in an organized way
• Make comparisons easier
• Improve readability
• Highlight important findings
• Support the results section without repeating the text
• Give the manuscript a more professional appearance

Core principles of a strong table

A good table should serve a clear purpose. Before creating a table, ask yourself:

Does this table help the reader understand an important part of the study?

If the answer is no, the table may be unnecessary.

Essential elements of a good table

A strong academic table usually includes several key elements.

1. Table number and title

The title should briefly explain what the table shows.

Weak: Table 1. Results

Stronger: Table 1. Demographic and clinical characteristics of the study groups

2. Clear column headings

Column headings should be short, informative, and include units when needed.

• Age, years, mean ± SD
• BMI, kg/m²
• Complications, n (%)

3. Logical rows

Rows should be grouped and ordered in a way that makes sense. Similar variables should be placed together:

• Demographic variables
• Clinical characteristics
• Treatment variables
• Outcome variables

4. Units and abbreviations

All abbreviations and units should be explained either in the heading or in a footnote.

Example: BMI: body mass index; SD: standard deviation.

5. Footnotes

Footnotes are useful for explaining abbreviations, statistical tests, symbols, or special conditions.

Example: Continuous variables are presented as mean ± SD. Categorical variables are presented as n (%).

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Weak vs strong table

A weak table usually contains too much information, unclear headings, unexplained abbreviations, inconsistent formatting, or missing footnotes.

A strong table has:

• A clear and informative title
• Properly labeled columns
• Logical grouping of variables
• Consistent formatting
• Explained abbreviations
• Appropriate statistical information

Common mistakes to avoid

• Including unnecessary or irrelevant data
• Using vague titles such as “Results”
• Not explaining abbreviations
• Mixing units or formats inconsistently
• Presenting numbers without clear context
• Missing p values, test names, or footnotes when needed
• Repeating exactly the same information already shown in the text or figures

Practical formatting tips

For most scientific tables:

• Align text to the left
• Align numbers to the right or center
• Use the same number of decimal places consistently
• Keep headings short
• Avoid excessive borders and visual clutter
• Use footnotes instead of overcrowding cells
• Follow the target journal's table format

Submission checklist

Before submitting your manuscript, check:

• Does the table have a clear title?
• Are all columns and rows understandable?
• Are units included where necessary?
• Are all abbreviations explained?
• Are statistical tests and p values clear?
• Is the formatting consistent?
• Does the table add new information rather than repeat the text?
• Does it follow the journal's instructions?

In short

A strong table should make the reader's job easier.

It should not simply display data. It should organize the data in a way that supports the main finding of the study and allows the reader to understand the results quickly.

A strong table is clear, focused, consistent, and useful. For the broader results narrative, see our research results section guide — and for statistical reporting, our statistical analysis section guide.