Prevalence, burden, and risk factors of migraine: A community-based study from Eastern India.

Background: Headache is common in communities; however, epidemiological research regarding its prevalence is infrequent in India.

Aim: We planned to study the prevalence of migraine, its disease burden, and the associated risk factors.

Setting And Design: This is an urban community study conducted in Kolkata with a cross-sectional and nested case-control design.

Epidemiology of dementia and its burden in the city of Kolkata, India.

Objectives: Increase in aging population is expected to lead to increasing prevalence of dementia in India. In this study, we aimed to determine prevalence, incidence, and mortality of dementia and its subtypes and assess dementia burden in terms of disability-adjusted life years (DALY).

Methods: A community study was conducted over 5 years (2003-2008) in Kolkata, India, on 100,802 (males 53,209) randomly selected subjects to assess prevalence and capture data on incident cases and deaths.

Correlates of functional outcome among stroke survivors in a developing country--a prospective community-based study from India.

Stroke survivors (SS) are rising with higher incidence of stroke in developing countries. In addition to physical impairment, other factors such as cognition, social interaction, and depression determine the functional outcome after stroke. Considering the paucity of data from developing countries, we planned to determine the change in various functional parameters among SS.

Depression among stroke survivors: a community-based, prospective study from Kolkata, India.

Objective: Post-stroke depression (PSD) is a disabling entity among stroke survivors (SS). Longitudinal studies on PSD, essential to determine its prognosis, are lacking from developing countries. This prospective study was undertaken to assess the prevalence, natural history, and correlates of depression among SS in an Indian community.

Disease burden of stroke in Kolkata, India: derivation of disability-adjusted life years by a direct method.

Background/aims: The disability-adjusted life year (DALY) is a new time-based measure of disease burden incorporating both disability and mortality. Our study aims to determine the DALYs lost due to stroke using a direct methodology and the implications.

Methods: A population-based, house-to-house, 2-stage, prospective study on stroke was conducted over 7 years in Kolkata, India, on 100,802 randomly selected subjects to capture the incident cases of first-ever stroke and those with fatal stroke.

Early and delayed fatality of stroke in Kolkata, India: results from a 7-year longitudinal population-based study.

There is no previously published well-designed study on long-term outcome of stroke from India. The present study has examined the case fatality rate and survival pattern in patients with stroke in a stratified, randomly selected sample from a large Indian metropolitan area. This prospective study was conducted over 7 years (March 2003 to February 2010) using a validated questionnaire administered by a field team and headed by a neurologist.

Burden among stroke caregivers: results of a community-based study from Kolkata, India.

Background And Purpose: Stroke causes significant caregiver (CG) stress, which is under-reported in India. This study assesses the financial, physical, psychological, and family burden on CG of stroke patients in an urban community.

Methods: Cross-sectional survey of stroke patients and CG were selected from a community-based registry using validated scales through face-to-face interviews.

A longitudinal study of epilepsy in Kolkata, India.

Purpose: This study aimed to determine the prevalence, incidence, and mortality rates of epilepsy in the city of Kolkata, India. This is the first such longitudinal study in a heterogeneous urban Indian population.

Methods: A two-stage door-to-door survey of a stratified random sample was undertaken within the municipal limits of Kolkata.

Neurological disorders in children and adolescents.

Objective: To ascertain the prevalence of active epilepsy, febrile seizures (FS), cerebral palsy (CP) and tic disorders (TD) in aged 19 years or less.

Methods: This was a cross-sectional observational study conducted as a two-stage door-to-door survey of a stratified randomly selected population in 2003-04. Trained field workers screened the population followed by case examination by the field neurologist.

Community survey of primary dystonia in the city of Kolkata, India.

An epidemiological study on dystonia has not been reported from India. As part of a major study to find out the prevalence of major neurological disorders in the large urban city of Kolkata, Eastern India, we planned to determine the prevalence of primary dystonia. The study design was a cross-sectional study of a sample population obtained through stratified random selection and conducted in a two-stage procedure of screening by a nonprofessional team followed by confirmation of screened positive cases by the study neurologist.

A prospective community-based study of stroke in Kolkata, India.

Background And Purpose: Information on essential stroke parameters are lacking in India. This population-based study on stroke disorder was undertaken in the city of Kolkata, India, to determine the subtypes, prevalence, incidence, and case fatality rates of stroke.

Methods: This was a longitudinal descriptive study comprising 2-stage door-to-door survey of a stratified randomly selected sample of the city population, conducted twice per year for 2 successive years from March 2003 to February 2005.

A random sample survey for prevalence of major neurological disorders in Kolkata.

Background & Objectives: Large scale epidemiological studies on neurological disorders are very few in India. We therefore planned to conduct a cross-sectional population-based epidemiological study on a stratified randomly selected sample from the city of Kolkata to study the prevalence of major neurological disorders such as epilepsy, stroke, dementia and Parkinsonism.

Methods: The method of case ascertainment was two- stage house-to-house survey; the first stage was undertaken by a field team consisting of four field workers and a neuropsychologist.