ALPHA HIV Incidence and Mortality Data, Kisesa 1994-2016 - Tanzania

Abstract
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This dataset is created from harmonising longitudinal population-based demographic surveillance and repeated serological survey data collected by an Kisesa HIV open cohort Study in Mwanza, Tanzania. The data harmonisation is coordinated by the ALPHA Network which curates individual-level data on demographic surveillance, verbal autopsy interviews, serological and sexual behaviour surveys, and individually-linked data from HDSS and medical facilities.

The data from the Kisesa site in Tanzania includes two data files:

HIV incidence data data file:
This data file includes data on resident study participants aged 15-49 who have had one negative HIV test and at least one subsequent HIV test done within the study for research purposes. Data may be split into multiple observations for each person to describe time spent in different residencies, different age groups and different calendar year periods.
All timings are given as age at event, instead of the dates. Dates of birth were rounded to the 15th of the month, and all other dates were offset by the same amount and the time elapsed between the rounded dates is used as the age at event.
To enable multiple imputation of seroconversion dates we have provided the times (ages) of last negative test and first positive test.

Mortality data
This datas file was created as described here (https://gatesopenresearch.org/articles/1-4)

Geographic coverage
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The data covers the Kisesa HIV open cohort study area in Mwanza, Tanzania

Analysis unit
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Individuals

Kind of data
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Event History data

Mode of data collection
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Face-to-face

Research instrument
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The original unharmonised data was collected by the Kisesa study

摘要
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本数据集由协调纵向人口基础人口监测和重复血清学调查数据的Kisesa HIV开放式队列研究在坦桑尼亚姆万扎的收集工作整合而成。数据整合工作由ALPHA网络负责，该网络负责整理人口监测、口头尸检访谈、血清学和性行为调查的个体级数据，以及来自健康监测系统（HDSS）和医疗机构的相关个体数据。

坦桑尼亚Kisesa站点的数据包括两个数据文件：

HIV发病率数据数据文件：
本数据文件包含15-49岁居住研究参与者的数据，这些参与者曾进行过一次阴性HIV检测，并在研究期间至少进行过一次后续HIV检测，以供研究之用。由于描述不同居住地、不同年龄段和不同日历年段所花费的时间，可能针对每个人进行多个观察记录。所有时间均以事件发生时的年龄给出，而非日期。出生日期均四舍五入至每月的15日，所有其他日期均按相同比例偏移，且使用四舍五入日期之间的时间差作为事件发生时的年龄。为了便于进行多次血清转换日期的插补，我们提供了最后一次阴性检测和第一次阳性检测的时间（年龄）。

死亡率数据：
本数据文件创建方式如所描述（https://gatesopenresearch.org/articles/1-4）。

地理覆盖范围
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数据覆盖坦桑尼亚姆万扎的Kisesa HIV开放式队列研究区域。

分析单位
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个体。

数据类型
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事件历史数据。

数据收集方式
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面对面。

研究工具
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原始未整合数据由Kisesa研究收集。