About this table

Description	Insomnia Severity Index (ISI), 7 items, 0-4; N = 10,008 respondents across Bangladesh (2022-2024); sociodemographic covariates and clinician severity labels (cov_clinician_insomnia, cov_clinician_anxiety).
Reference	Begum, Khalib, Mahmud, Piyas et al. (2026). Onidra: A Clinically Annotated Survey Dataset for Insomnia and Anxiety Assessment Based on ISI and HAM-A. Mendeley Data, V1. https://doi.org/10.17632/sg2whyws4h
Licence	CC BY 4.0
Source data	https://data.mendeley.com/datasets/sg2whyws4h

Size and shape

Responses	70,056
Respondents	10,008
Items	7
Response categories	5
Responses per respondent	7
Responses per item	10,008
Density	1
Longitudinal	FALSE

Classification

age range	Mixed
sample	General/non-specific
measurement tool	Survey/questionnaire
item format	Likert Scale/selected response
primary language(s)	eng
construct name	Insomnia severity (ISI)

Codebook

This codebook is reconstructed by the IRW from the IRW data standard and the script that built it, begum_2026_insomnia_anxiety.py. It is our best reading, not the source’s own codebook, and it may contain mistakes. Where the two disagree, the source data are the authority. If you find an error, please tell us.

Column	What it is	Source column
IRW standard columns
`id`	IRW standard Identifier for the focal unit being measured — typically a person, but sometimes another entity (e.g., a word in a lexical task).	made in the build script
`item`	IRW standard Item identifier.	made in the build script
`resp`	IRW standard Response value.	made in the build script
Respondent covariates
`cov_age_group`	Covariate	`Age`
`cov_alcohol`	Covariate	`Alcohol`
`cov_clinician_anxiety`	Covariate	`Doctor Opinion Anxiety`
`cov_clinician_insomnia`	Covariate	`Doctor Opinion Insomnia`
`cov_education_year`	Covariate	`EducationalYear`
`cov_gender`	Covariate	`Gender`
`cov_living_status`	Covariate	`LivingStatus`
`cov_marital_status`	Covariate	`MaritalStatus`
`cov_occupation`	Covariate	`Occupation`
`cov_place_of_education`	Covariate	`Place_of_ Education`
`cov_sleep_time`	Covariate	`SleepTime`
`cov_smoking`	Covariate	`SmokingHabit`
`cov_university_type`	Covariate	`UniversityType`

What item codes and covariate values stand for is in the source’s codebook, file_downloaded.

Get the data

Download CSVno account needed Browse on Redivisexplore and query Croissant metadataHugging Face, Kaggle, OpenML

Or load it directly in R or Python (both need a free Redivis account; the first call opens a browser to sign in):

# R
install.packages("remotes")
remotes::install_github("itemresponsewarehouse/Rpkg")
library(irw)
df <- irw_fetch("begum_2026_isi")

# Python
pip install irw

import irw
df = irw.fetch("begum_2026_isi")

How to cite

@misc{https://doi.org/10.17632/sg2whyws4h,
  doi = {10.17632/SG2WHYWS4H},
  url = {https://data.mendeley.com/datasets/sg2whyws4h},
  author = {Begum, Afsana  and Khalib, Zahereel Ishwar Abdul  and Mahmud, Imran  and Piyas, Bibhas Roy Chowdhury and Mohiuddin, K.M. and Khan, Meher Durdana  and Khanam, Bilkis  and Dina, Farhana Kabir  and Laboni, Farzana Akter  and Iffat, Sajia  and Islam, Shahrin  and Hossen, Shazzad  and Tisha, Fatama Jannat},
  keywords = {Sleep Disorder, Mental Health, Anxiety, Anxiety Disorder, Insomnia, Behavioral Assessment, Clinical Analysis, Psychometric Assessment},
  title = {Onidra: A Clinically Annotated Survey Dataset for Insomnia and Anxiety Assessment Based on ISI and HAM-A},
  publisher = {Mendeley Data},
  year = {2026}
}

Version and provenance

IRW version	v584
Redivis dataset	item_response_warehouse_5 v8.5
Redivis dataset DOI	10.57761/41xy-5k56
Manifest pin for this IRW version	v8.5
Metadata source	irw_meta v44.0

begum_2026_isi