ALPHA HIV Incidence and Mortality Data, Karonga 2002-2017 - Malawi

Abstract
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This dataset is created from harmonising longitudinal population-based demographic surveillance and repeated serological survey data collected by a Health and Demographic Surveillance Study in Karonga, Malawi. 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 Karonga site in Malawi include two data files:

HIV incidence data
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 in 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 the times (ages) of last negative test and first positive test have been included in the data.

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 Karonga demographic surveillance area in rural northen Malawi

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 [f2f]

摘要
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本数据集源于对马拉维卡隆加地区一项健康与人口统计学监测研究（Health and Demographic Surveillance Study）所收集的纵向人口统计学监测与重复血清学调查数据的协调整合。数据整合工作由ALPHA网络负责，该网络负责整理关于人口统计学监测、尸检访谈、血清学及性行为调查的个体级数据，以及来自健康与人口统计学监测研究（HDSS）和医疗机构的相关联个体数据。

马拉维卡隆加地区的数据包括两个数据文件：

HIV发病率数据
此数据文件包含居住研究参与者的数据，年龄在15至49岁之间，他们曾进行过一次阴性HIV检测，并在研究期间至少进行过一次后续HIV检测。由于描述不同居住地、不同年龄段以及不同日历年期间的时间，数据可能被分为每个个体的多个观测值。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，所有其他日期均以此相同的方式偏移，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。为了实现血清转化日期的多重插补，数据中包括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
此数据文件创建方式如链接所示（https://gatesopenresearch.org/articles/1-4）。

地理覆盖范围
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数据覆盖了马拉维北部农村的卡隆加人口统计学监测区域。

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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面对面访谈 [f2f]。