Adequate functional health literacy is associated with better sleep quality and longer sleep duration in patients with type 2 diabetes in Bangladesh
In a cross-sectional study of 401 patients with type 2 diabetes in Dhaka, only 27.3% had adequate functional health literacy (FHL). Adequate FHL was significantly associated with higher sleep metrics, with longer sleep duration (AOR = 9.17) and higher quality sleep (AOR = 5.67) increasing the likelihood of adequate FHL.
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Adequate functional health literacy is associated with better sleep quality and longer sleep duration in patients with type 2 diabetes in Bangladesh The current body of evidence comprises 1 study. EvidenceHub rates the overall confidence at 34/100 (low).
The Claim
Adequate functional health literacy is associated with better sleep quality and longer sleep duration in patients with type 2 diabetes in Bangladesh
This conclusion is most relevant to: 401 patients with type 2 diabetes from three diabetes centers in Dhaka, Bangladesh (59% female, 34.9% rural).
What the Research Shows
The conclusion draws on 1 linked study. Highlights from the cited literature:
- ▸Association of Functional Health Literacy Among Patients With Type-2 Diabetes in Bangladesh: A Cross-sectional Study. (Health literacy research and practice, 2026) —
How It Works
The proposed biological pathway:
- ▸Higher functional health literacy enables better understanding of diabetes self-management instructions
- ▸Better self-management leads to improved glycemic control and overall health
- ▸Improved health may contribute to better sleep quality and duration
- ▸Result: Adequate FHL is associated with better sleep metrics
Who Might Benefit
Evidence fit by population:
- ▸401 patients with type 2 diabetes from three diabetes centers in Dhaka, Bangladesh (59% female, 34.9% rural)
Recommended Dose
N/A
Limitations & Caveats
Important context when interpreting this evidence:
- ▸Cross-sectional design cannot establish causality; reverse causation possible (better sleep may improve cognitive function and health literacy)
- ▸Study conducted in Dhaka only, limiting generalizability to other regions of Bangladesh
- ▸Self-reported sleep metrics may be subject to recall bias
Frequently Asked Questions
What percentage of patients with type 2 diabetes in Dhaka have adequate functional health literacy?▼
Only 27.3% of the 401 participants had adequate functional health literacy.
How is sleep quality related to functional health literacy in this study?▼
Higher quality sleep was significantly associated with adequate functional health literacy, with an adjusted odds ratio of 5.67.
What tool was used to measure functional health literacy?▼
A Bengali adaptation of the Short Test of Functional Health Literacy (S-TOFHLA) was used.
Did the study find a link between glycemic control and health literacy?▼
Yes, higher glucose levels were linked to reduced odds of adequate functional health literacy (AOR < 1), indicating that poor glycemic control is associated with lower health literacy.
References
- 1.Islam MM, Hossain SB, Rahman KM, Sinthia MK, Chowdhury ABMA, Khan S. “Association of Functional Health Literacy Among Patients With Type-2 Diabetes in Bangladesh: A Cross-sectional Study..” Health literacy research and practice, 2026. PMID: 42545221 DOI: 10.3928/24748307-20260409-02