Analyzing seasonality of tuberculosis across Indian states and union territories

A significant seasonal variation in tuberculosis (TB) is observed in north India during 2006–2011, particularly in states like Himachal Pradesh, Haryana and Rajasthan. To quantify the seasonal variation, we measure average amplitude (peak to trough distance) across seasons in smear positive cases of...

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Main Authors: Pankaj Narula, Praveer Sihota, Sarita Azad, Pietro Lio
Format: Article
Language:English
Published: Springer 2019-04-01
Series:Journal of Epidemiology and Global Health
Subjects:
Online Access:https://www.atlantis-press.com/article/125906030/view
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author Pankaj Narula
Praveer Sihota
Sarita Azad
Pietro Lio
author_facet Pankaj Narula
Praveer Sihota
Sarita Azad
Pietro Lio
author_sort Pankaj Narula
collection DOAJ
description A significant seasonal variation in tuberculosis (TB) is observed in north India during 2006–2011, particularly in states like Himachal Pradesh, Haryana and Rajasthan. To quantify the seasonal variation, we measure average amplitude (peak to trough distance) across seasons in smear positive cases of TB and observe that it is maximum for Himachal Pradesh (40.01%) and minimum for Maharashtra (3.87%). In north India, smear positive cases peak in second quarter (April–June) and reach a trough in fourth quarter (October–December), however low seasonal variation is observed in southern region of the country. The significant correlations as 0.64 (p-value < 0.001), 0.54 (p-value < 0.01) and 0.42 (p-value < 0.05) are observed between minimum temperature and seasonality of TB at lag-1 in north, central and northeast India respectively. However, in south India, this correlation is not significant.
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spelling doaj.art-e36e725359134104894dbe46613800092022-12-22T01:11:06ZengSpringerJournal of Epidemiology and Global Health2210-60062019-04-015410.1016/j.jegh.2015.02.004Analyzing seasonality of tuberculosis across Indian states and union territoriesPankaj NarulaPraveer SihotaSarita AzadPietro LioA significant seasonal variation in tuberculosis (TB) is observed in north India during 2006–2011, particularly in states like Himachal Pradesh, Haryana and Rajasthan. To quantify the seasonal variation, we measure average amplitude (peak to trough distance) across seasons in smear positive cases of TB and observe that it is maximum for Himachal Pradesh (40.01%) and minimum for Maharashtra (3.87%). In north India, smear positive cases peak in second quarter (April–June) and reach a trough in fourth quarter (October–December), however low seasonal variation is observed in southern region of the country. The significant correlations as 0.64 (p-value < 0.001), 0.54 (p-value < 0.01) and 0.42 (p-value < 0.05) are observed between minimum temperature and seasonality of TB at lag-1 in north, central and northeast India respectively. However, in south India, this correlation is not significant.https://www.atlantis-press.com/article/125906030/viewTuberculosisSeasonalityPoisson regressionSmear positive casesTemperature
spellingShingle Pankaj Narula
Praveer Sihota
Sarita Azad
Pietro Lio
Analyzing seasonality of tuberculosis across Indian states and union territories
Journal of Epidemiology and Global Health
Tuberculosis
Seasonality
Poisson regression
Smear positive cases
Temperature
title Analyzing seasonality of tuberculosis across Indian states and union territories
title_full Analyzing seasonality of tuberculosis across Indian states and union territories
title_fullStr Analyzing seasonality of tuberculosis across Indian states and union territories
title_full_unstemmed Analyzing seasonality of tuberculosis across Indian states and union territories
title_short Analyzing seasonality of tuberculosis across Indian states and union territories
title_sort analyzing seasonality of tuberculosis across indian states and union territories
topic Tuberculosis
Seasonality
Poisson regression
Smear positive cases
Temperature
url https://www.atlantis-press.com/article/125906030/view
work_keys_str_mv AT pankajnarula analyzingseasonalityoftuberculosisacrossindianstatesandunionterritories
AT praveersihota analyzingseasonalityoftuberculosisacrossindianstatesandunionterritories
AT saritaazad analyzingseasonalityoftuberculosisacrossindianstatesandunionterritories
AT pietrolio analyzingseasonalityoftuberculosisacrossindianstatesandunionterritories