B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Recent
3,000,000
3,000,000 -- population needing subtitles for Poland viewers with poor hearing (2025)
According to the Polish Deaf Association, up to 3,000,000 people in Poland need subtitles due to poor hearing.
- Source states 'up to 3,000,000'
Attribution:
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Lighthouse Research Team
Last verified:
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Source verified
Evidence graded
Value
3,000,000
Unit
Count
Data Vintage
2025
Entity
Evidence Quality
B
Strong, reliable evidence
Sourced from a well-regarded research firm or industry leader with transparent methodology and a reasonably large sample.
Single source - not yet corroborated
Score breakdown
Extraction
75
Source Trust
60
Citation Chain
20
Independence
30
Methodology
45
Freshness
95
Source
Polish Deaf Association
Primary
Tier B
https://www.lifetube.pl/en/knowledge-base/why-add-subtitles-to-youtube-videos ↗
Source Article
Why add subtitles to YouTube videos?
Why add subtitles to YouTube videos?
Adding subtitles to your videos can directly affect the results of your content. In this short article we would like to tell you in 3 points why it is worth doing this.
Adding subtitles to your videos can directly affect the results of your content. In this short…
Original Research
Polish Deaf Association
· Original study ↗
Methodology
Attributed to Krzysztof Kotyniewicz, President of the Polish Deaf Association; no methodology stated
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
Poland viewers with poor hearing: 3,000,000 population needing subtitles. Source: Polish Deaf Association (2025). Via Lighthouse Intelligence -- https://lighthousedata.io/data/poland-deaf-hard-of-hearing-subtitle-audience
HTML Embed
<blockquote cite="https://lighthousedata.io/data/poland-deaf-hard-of-hearing-subtitle-audience" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>3,000,000</strong> -- population needing subtitles for Poland viewers with poor hearing<br><small>Source: Polish Deaf Association (2025) · <a href="https://lighthousedata.io/data/poland-deaf-hard-of-hearing-subtitle-audience" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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