<?xml version='1.0' encoding='UTF-8'?>
<codeBook version="1.2.2" ID="SEN-IRD-HDSS-NIAKHAR-1962-c" xml-lang="fr" xmlns="http://www.icpsr.umich.edu/DDI" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.icpsr.umich.edu/DDI http://www.icpsr.umich.edu/DDI/Version1-2-2.xsd">
  <docDscr>
    <citation>
      <titlStmt>
        <titl>
          Observatoire de santé et de population de Niakhar (1962-en cours)
        </titl>
        <IDNo>
          SEN-IRD-HDSS-NIAKHAR-1962-c
        </IDNo>
      </titlStmt>
      <prodStmt>
        <producer abbr="isTT" affiliation=" INDEPTH Network" role="Création DDI">
          ISHARE2Technical TEAM
        </producer>
        <producer abbr=" int.indpth " affiliation=" INDEPTH Network" role="Agence">
          INDEPTH Network
        </producer>
        <producer abbr="IRD" affiliation="Institut de recherche pour le développement (France)" role="Création DDI">
          Mouhamadou Baba SOW
        </producer>
        <producer abbr="INED" affiliation="Institut de recherche pour le développement (France)" role="Révision DDI">
          Dominique Diguet
        </producer>
        <prodDate date="2017-05-20">
          2017-05-20
        </prodDate>
        <software version="4.0.9" date="2013-04-23">
          Nesstar Publisher
        </software>
      </prodStmt>
      <verStmt>
        <version>
          <![CDATA[Version  Demostaf d'après la version INDEPTH (20-05-2017)]]>
        </version>
        <notes>
          Version CMD2015.V1: For public distribution
        </notes>
      </verStmt>
      <holdings URI="http://www.indetpth-ishare.org"/>
    </citation>
  </docDscr>
  <stdyDscr>
    <citation>
      <titlStmt>
        <titl>
          Observatoire de santé et de population de Niakhar (1962-en cours)
        </titl>
        <altTitl>
          Niakhar HDSS
        </altTitl>
        <parTitl>
          Niakhar Health and Demographic System Surveillance (1962-continuous)
        </parTitl>
        <IDNo>
          SEN-IRD-HDSS-NIAKHAR-1962-c
        </IDNo>
      </titlStmt>
      <rspStmt>
        <AuthEnty affiliation="Institut de Recherche pour le Développement (IRD)">
          Cheikh SOKHNA
        </AuthEnty>
        <AuthEnty affiliation="Institut de Recherche pour le Développement (IRD)">
          Laurence FLEURY
        </AuthEnty>
        <AuthEnty affiliation="Institut de Recherche pour le Développement (IRD)">
          Valérie Delaunay
        </AuthEnty>
        <AuthEnty affiliation="Institut de Recherche pour le Développement (IRD)">
          El-Hadji Konko Ciré Bâ
        </AuthEnty>
        <othId role="Verbal Autopsy Interviewer" affiliation="Institut de recherche pour le développement (France)">
          <p>
            Paul SENGHOR
          </p>
        </othId>
        <othId role="Referencies Manager" affiliation="Institut de recherche pour le développement (France)">
          <p>
            Emilie NDIAYE
          </p>
        </othId>
        <othId role="Administrative Manager" affiliation="Institut de recherche pour le développement (France)">
          <p>
            Prosper NDIAYE
          </p>
        </othId>
        <othId role="Logistics Manager" affiliation="Institut de recherche pour le développement (France)">
          <p>
            Malick TOURE
          </p>
        </othId>
      </rspStmt>
      <prodStmt>
        <producer abbr="MBS" affiliation="Institut de recherche pour le développement (France)" role="Data Manager">
          Mouhamadou Baba SOW
        </producer>
        <producer abbr="EV" affiliation="Institut de recherche pour le développement (France)" role="Data Manager">
          Emilie VOLPI
        </producer>
        <producer abbr="AF" affiliation="Institut de recherche pour le développement (France)" role="Data collector">
          Adiouma FAYE
        </producer>
        <producer abbr="Staff" affiliation="Institut de recherche pour le développement (France)" role="Data collectors">
          All staff Data Collection
        </producer>
        <copyright>
          This dataset documentation is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License. The dataset is shared in terms of the data-use agreement accepted at the time of data download.
        </copyright>
        <software version="4.0.9" date="2013-04-23">
          Nesstar Publisher
        </software>
        <fundAg abbr="IRD" role="Bailleur de fonds">
          Institut de recherche pour le développement (France)
        </fundAg>
      </prodStmt>
      <distStmt>
        <contact affiliation="INDEPTH" URI="http://indepth-ishare.org/howtouse" email="help-data@indepth-network.org">
          iSHARE2 Helpdesk
        </contact>
      </distStmt>
      <serStmt>
        <serName>
          Système de suivi démographique [ssd/hdss]
        </serName>
        <serInfo>
          <![CDATA[A mettre pour le data set Cet ensemble de données contient les rondes 1 à 16 des données de surveillance démographique couvrant la période allant du 1er janvier 2008 au 31 décembre 2016.

Un recensement initial de référence a été effectué en 1962 pour 8 villages, suivi d'un autre en 1983, lorsque la zone d'étude de Niakhar a été élargie. De 1962 à 1987, les données ont été recueillies au cours de cycles annuels pendant la saison sèche. Les événements démographiques ont été recueillis par les intervieweurs en utilisant une liste imprimée de résidents composés avec leurs caractéristiques. De 1987 à 1997, les cycles sont devenus hebdomadaires en raison de la nécessité d'un enregistrement continu des naissances pour les essais de vaccins. Des recensements annuels ont été effectués pour vérifier la collecte de données, en particulier par rapport à l'entrée et à l'émigration. Des visites de routine ont été menées dans les 30 villages de la zone d'étude tous les trois mois entre 1997 et 2007 et tous les quatre mois entre 2008 et 2012 et tous les six mois depuis. Les entretiens sont effectués avec la tablette PC depuis 2007. Les autopsies verbales sont complétées après chaque tour par du personnel qualifié.



This dataset contains rounds 1 to 16 of demographic surveillance data covering the period from 1 Jan 2008  to 31 December 2016. 

An initial baseline census was carried out in 1962 for 8 villages, followed by another one in 1983 when the study area of Niakhar was expanded. From 1962 to 1987, data were collected through annual rounds during the dry season. Demographic events were collected by interviewers using a printed list of compound residents with their characteristics. From 1987 to 1997, rounds became weekly because of the need for continuous birth registration for vaccine trials. Annual censuses were carried out to check data collection, particularly relative to in- and out-migration. Routine visits were conducted in the 30 villages of the study area every three months between 1997and 2007 and every four months between 2008 and 2012 and every six month since then. Interviews are conducted with tablet PC since 2007. Verbal autopsies are completed after each round by trained personnel.]]>
        </serInfo>
      </serStmt>
      <verStmt>
        <version date="2017-05-20">
          CMD2014.v1
        </version>
        <notes>
          CMD2015.V1
        </notes>
      </verStmt>
    </citation>
    <stdyInfo>
      <subject>
        <keyword>
          Migration
        </keyword>
        <keyword>
          Mortalité
        </keyword>
        <keyword>
          Fécondité
        </keyword>
        <keyword>
          Population
        </keyword>
      </subject>
      <abstract>
        <![CDATA[Le Système de surveillance de la santé et de la démographie (HDSS) à Niakhar, une région rurale du Sénégal, est situé à 135 km à l'est de Dakar. Ce HDSS a été mis en place en 1962 par l'Institut de Recherche pour le Développement (IRD) pour faire face aux lacunes du système d'enregistrement civil et fournir des indicateurs démographiques.

Quelque 65 villages ont été suivis chaque année dans la région de Niakhar de 1962 à 1969. La zone d'étude a été réduite à huit villages de 1969 à 1983, et à partir de là, le HDSS a été étendu à 22 autres villages, couvrant un total de 30 villages pour un Population estimée à 45 000 en décembre 2013. Ainsi, 8 villages ont subi une surveillance démographique depuis près de 50 ans et 30 villages pendant 30 ans.

Les événements vitaux, les migrations, les changements matrimoniaux, les grossesses, la vaccination sont systématiquement enregistrés (tous les quatre mois). La base de données comprend également des informations épidémiologiques, économiques et environnementales provenant d'enquêtes spécifiques. Les données ont été recueillies au cours de cycles annuels de 1962 à 1987; Les rondes sont devenues hebdomadaires de 1987 à 1997; Des visites de routine ont eu lieu tous les trois mois entre 1997 et 2007 et tous les quatre mois depuis.

Les objectifs actuels sont 1) d'obtenir une évaluation à long terme des indicateurs démographiques et socio-économiques nécessaires à la recherche biomédecine et des sciences sociales, 2) maintenir le suivi épidémiologique et environnemental, 3) fournir une plate-forme de recherche clinique et Recherche interdisciplinaire (sciences médicales, sociales et environnementales). Les projets de recherche au cours des 5 dernières années figurent dans le tableau 2. Le NSSAH HDSS a une affiliation institutionnelle à l'Institut de Recherche pour le Développement (IRD, anciennement ORSTOM).]]>
      </abstract>
      <sumDscr>
        <timePrd date="2008-03-27" event="start" cycle="Round1"/>
        <timePrd date="2008-05-13" event="end" cycle="Round1"/>
        <timePrd date="2008-07-22" event="start" cycle="Round2"/>
        <timePrd date="2008-09-08" event="end" cycle="Round2"/>
        <timePrd date="2009-02-18" event="start" cycle="Round3"/>
        <timePrd date="2009-04-07" event="end" cycle="Round3"/>
        <timePrd date="2009-08-06" event="start" cycle="Round4"/>
        <timePrd date="2009-09-19" event="end" cycle="Round4"/>
        <timePrd date="2009-11-17" event="start" cycle="Round5"/>
        <timePrd date="2010-01-06" event="end" cycle="Round5"/>
        <timePrd date="2010-02-24" event="start" cycle="Round6"/>
        <timePrd date="2010-04-13" event="end" cycle="Round6"/>
        <timePrd date="2010-06-26" event="start" cycle="Round7"/>
        <timePrd date="2010-08-05" event="end" cycle="Round7"/>
        <timePrd date="2011-03-14" event="start" cycle="Round8"/>
        <timePrd date="2011-04-24" event="end" cycle="Round8"/>
        <timePrd date="2011-10-05" event="start" cycle="Round9"/>
        <timePrd date="2011-12-06" event="end" cycle="Round9"/>
        <timePrd date="2012-02-06" event="start" cycle="Round10"/>
        <timePrd date="2012-04-16" event="end" cycle="Round10"/>
        <timePrd date="2012-06-11" event="start" cycle="Round11"/>
        <timePrd date="2012-08-10" event="end" cycle="Round11"/>
        <timePrd date="2012-10-16" event="start" cycle="Round12"/>
        <timePrd date="2012-12-14" event="end" cycle="Round12"/>
        <timePrd date="2013-04-08" event="start" cycle="Round13"/>
        <timePrd date="2013-06-07" event="end" cycle="Round13"/>
        <timePrd date="2013-10-05" event="start" cycle="Round14"/>
        <timePrd date="2013-12-18" event="end" cycle="Round14"/>
        <timePrd date="2015-04-05" event="start" cycle="Round15"/>
        <timePrd date="2015-06-15" event="end" cycle="Round15"/>
        <timePrd date="2015-10-05" event="start" cycle="Round16"/>
        <timePrd date="2015-12-10" event="end" cycle="Round16"/>
        <collDate date="1984-01-01" event="start" cycle="Release coverage"/>
        <collDate date="2014-12-31" event="end" cycle="Release coverage"/>
        <nation abbr="SEN">
          Sénégal
        </nation>
        <geogCover>
          <![CDATA[La zone d'étude de Niakhar est située au Sénégal, latitude 14.5ºN  et  longitude 16,5ºO dans le département de Fatick (Sine Saloum), à 135 km à l'est de Dakar. La zone d'étude de Niakhar couvre 203 kilomètres carrés et se situe dans la zone climatique continental sahélienne-soudanaise. Pendant trente ans, la région a souffert de la sécheresse. Les précipitations annuelles moyennes sont passées de 800 mm dans les années 1950 à 500 mm dans les années 80. Des quantités croissantes de précipitations ont été observées depuis le milieu des années 2000 avec des précipitations annuelles moyennes de 600 mm entre 2005 et 2010.]]>
        </geogCover>
        <anlyUnit>
          Individus
        </anlyUnit>
        <universe>
          <![CDATA[Members of households reside within the demographic surveillance area. Inmigrants are defined by intention to become resident, but actual residence episodes of less than 180 days are censored. Outmigrants are defined by intention to become resident elsewhere, but actual periods of non-residence less than 180 days are censored, except seasonal work migrants, worker with a wife resident, pupils or students. Children born to resident women are considered resident by default, irrespective of actual place of birth. 
The dataset contains the events of all individuals ever resident during the study period (1 Jan 1990 to 31 Dec 2013).

The Niakhar HDSS collects for each resident the following basic data: individual, household and compound identifying information, mother and father identification, relationship to the head of household and spousal relationship. From 1983 to 2007, the HDSS routinely monitored deaths, pregnancies, births, miscarriages, stillbirths, weaning, migrations, changes of marital status, immunizations, and cases of measles and whooping cough. For the last 5 years, the HDSS only recorded demographic events related to each resident including cause of death. Verbal autopsies have been conducted after all deaths except for those that occurred between 1999 and 2004 where only deaths for people aged 0-55 years were investigated. The Niakhar HDSS also registers visitors as well as all the demographic events related to them in case of in-migration. Household characteristics (living conditions, domestic equipment, etc.) were collected in 1998 and 2003, and community equipment (schools, boreholes, etc.) in 2003. Economic and environmental data will be collected in 2013. Table 3 presents further details on the data items collected. The Niakhar HDSS interviewers collect data with tablet PCs that are loaded with the last updated database linked to a user-friendly interface indicating the household members and the questionnaire. Daily backups are performed on an external hard drive and weekly synchronizations are scheduled during the round, helping to update the database and check data consistency (i.e. residential moves within the study area or marriages). Applications are  Developed in Visual Basic.Net and the database is managed with Microsoft Access.]]>
        </universe>
        <dataKind>
          Données d'observation [obs]
        </dataKind>
      </sumDscr>
      <notes>
        <![CDATA[This study represents only a portion of the total data associated with the complet Niakhar demographic surveillance as described in the study abstract.

It specifically only includes the events defining the resident exposure of individuals under surveillance as well as the delivery events of resident women. Each type of event contains minimal attributes describing the event:

Attributes common to each event:
Event Type,
Event Date
Observation date

Migration:
Origin & Destination

Delivery:
Live born and Still born counts]]>
      </notes>
    </stdyInfo>
    <method>
      <dataColl>
        <dataCollector abbr="SN013" affiliation="Institut de recherche pour le développement (IRD)">
          NIAKHAR for Health and Population Studies
        </dataCollector>
        <frequenc>
          <![CDATA[This dataset contains rounds 1 to 18 of demographic surveillance data covering the period from 1 Jan 1983 to 31 December 2015. 
From 1983 to 1987, data were collected through annual rounds during the dry season. Demographic events were collected by interviewers using a printed list of compound residents with their characteristics. From 1987 to 1997, rounds became weekly because of the need for continuous birth registration for vaccine trials. Annual censuses were carried out to check data collection, particularly relative to in- and out-migration. Routine visits were conducted in the 30 villages of the study area every three months between 1997and 2007 and every four months between 2008 and 2012 and every six month since then.]]>
        </frequenc>
        <sampProc>
          Non applicable
        </sampProc>
        <collMode>
          Proxy Respondent [proxy]
        </collMode>
        <resInstru>
          <![CDATA[Liste des questionnaires:
Inscription des ménages ou formulaire de mise à jour
Formulaire d'inscription ou de mise à jour de l'assurance habitation
Formulaire d'inscription ou de mise à jour des membres du ménage
Formulaire d'inscription : migration externe
Formulaire d'inscription : migration interne
Formulaire d'inscription individuel
Formulaire d'inscription : naissances
Formulaire d'inscription : décès




List of questionnaires:
Compound  Registration or update Form 
Houshold Registration or update Form 
Household Membership Registration or update Form 
External Migration Registration Form 
Internal Migration Registration Form 
Individual Registration Form
Birth  Registration Form
Death Registration Form]]>
        </resInstru>
        <sources/>
        <collSitu>
          L'intervieweur a été formé juste avant la collecte des données de base et une formation de recyclage d'une journée entre chaque cycle de surveillance.
        </collSitu>
        <actMin>
          Les agents de terrain ont opéré en équipes de quatre avec un superviseur.
        </actMin>
        <weight>
          Non applicable
        </weight>
        <cleanOps>
          <![CDATA[On data entry data consistency and plausibility were checked by 455 data validation rules at database level. If data validaton failure was due to a data collection error, the questionnaire was referred back to the field for revisit and correction. If the error was due to data inconsistencies that could not be directly traced to a data collection error, the record was referred to the data quality team under the supervision of the senior database scientist. This could request further field level investigation by a team of trackers or could correct the inconsistency directly at database level.

No imputations were done on the resulting micro data set, except for:

a. If an out-migration (OMG) event is followed by a homestead entry event (ENT) and the gap between OMG event and ENT event is greater than 180 days, the ENT event was changed to an in-migration event (IMG).
b.  If an out-migration (OMG) event is followed by a homestead entry event (ENT) and the gap between OMG event and ENT event is less than 180 days, the OMG event was changed to an homestead exit event (EXT) and the ENT event date changed to the day following the original OMG event.
c. If a homestead exit event (EXT) is followed by an in-migration event (IMG) and the gap between the EXT event and the IMG event is greater than 180 days, the EXT event was changed to an out-migration event (OMG).
d. If a homestead exit event (EXT) is followed by an in-migration event (IMG) and the gap between the EXT event and the IMG event is less than 180 days, the IMG event was changed to an homestead entry event (ENT) with a date equal to the day following the EXT event.
e. If the last recorded event for an individual is homestead exit (EXT) and this event is more than 180 days prior to the end of the surveillance period, then the EXT event is changed to an out-migration event (OMG)

In the case of the village that was added (enumerated) in 2006, some individuals may have outmigrated from the original surveillance area and setlled in the the new village prior to the first enumeration. Where the records of such individuals have been linked, and indivdiual can legitmately have and outmigration event (OMG) forllowed by and enumeration event (ENU). In a few cases a homestead exit event (EXT) was followed by an enumeration event in these cases. In these instances the EXT events were changed to an out-migration event (OMG).]]>
        </cleanOps>
      </dataColl>
      <anlyInfo>
        <respRate>
          En moyenne, le taux de réponse est d'environ 99% au cours des années pour chaque cycle
        </respRate>
        <EstSmpErr>
          Non applicable
        </EstSmpErr>
      </anlyInfo>
    </method>
    <dataAccs>
      <setAvail>
        <origArch>
          <![CDATA[IRD  : Niakhar (SN013)]]>
        </origArch>
      </setAvail>
      <useStmt>
        <confDec required="yes">
          This data is anonimised and no confidentiality agreement in addition to the general data use agreement is required
        </confDec>
        <contact affiliation="INDEPTH" URI="http://indepth-ishare.org" email="help-data@indepth-network.org">
          iSHARE2 Heip desk
        </contact>
        <citReq>
          <![CDATA[Any use of this dataset must cite the digital object  identifier(doi) associated with this dataset. using the following from:

"Niakhar HDSS INDEPTH Core Dataset 1984-2014 (Release 2017). Provided by the INDEPTH Network Data Repository. www.indepth-network.og <http://www.indepth-network.org>.
doi: 10.7796/INDEPTH.SN013.CMD2014.v1"]]>
        </citReq>
        <conditions>
          <![CDATA[This data is made available for licensed access under the following conditions: 

1. Data and other material provided by INDEPTH will not be redistributed or sold to other individuals, institutions or organisations without INDEPTH's written agreement. 

2. In the case of multi-centre datasets, data originating from a single contributing member centre of the INDEPTH Network may not be analysed or reported on in isolation without the express permission of the member centre concerned.  

3. No attempt will be made to re-identify respondents, and there will be no use of the identity of any person or establishment discovered inadvertently. Any such discovery will be reported immediately to INDEPTH. 

4. No attempt will be made to produce links between datasets provided by INDEPTH or between INDEPTH data and other datasets that could identify individuals. 

5. Any books, articles, conference papers, theses, dissertations, reports or other publications employing data obtained from INDEPTH will cite the source, in line with the citation requirement provided with the dataset. 

6. An electronic copy of all publications based on the requested data will be sent to INDEPTH. 

7. The original collector of the data, INDEPTH, and the relevant funding agencies bear no responsibility for the data's use or interpretation or inferences based upon it.]]>
        </conditions>
        <disclaimer>
          <![CDATA[The user of the data acknowledges that the orriginal collector of thr data, INDEPTH, and the relevant funding agencies bear no responsibility for the  data's use or interpretation or inferences base upon it.]]>
        </disclaimer>
      </useStmt>
    </dataAccs>
  </stdyDscr>
  <dataDscr>
    <varGrp ID="VG1" type="subject">
      <labl>
        Centre Related Variables
      </labl>
      <txt>
        This group has identifiers for country and centre
      </txt>
    </varGrp>
    <varGrp ID="VG2" type="subject">
      <labl>
        Individual Related Variables
      </labl>
      <txt>
        Tis group has identifiers for individuals
      </txt>
    </varGrp>
    <varGrp ID="VG3" type="subject" varGrp="VG5">
      <labl>
        Event Related Variables
      </labl>
      <txt>
        This group has event related identifiers
      </txt>
    </varGrp>
    <varGrp ID="VG5" type="subject">
      <labl>
        Birth Related Variables
      </labl>
      <txt>
        <![CDATA[This group contains Birth (BTH)  Related Variables]]>
      </txt>
    </varGrp>
  </dataDscr>
</codeBook>
