Blood micro RNA (miRNA) expression data of 166 miRNAs and lung function (FEV1) data of 120 individuals with two measurements in Beijing Air Pollution Study.
BJmirna is a data frame of size 240 by 168.
BJlung is a data frame of size 240 by 13.
The data set
SID: study subject ID
WD: indicator of examination days
166 blood miRNA expression data
Blood samples were collection after work one the examination days.
The data set
SID: study subject id
WD: indicator of examination days,
FEV1: lung function measured by forced expiratory volume in 1 second
pm25: air pollution measured by particulate matter up to 2.5 micrometers in size
bmi: body mass index
heat: use of central heating system
cigwear: smoke cigarette during examination day
workhr: working hours
dewp: humidity measured by dew point
All variables were measured during the examination days.
Hou L, Barupal J, Zhang W, et al. (2015) Environmental health perspectives. (PubMed)
Baccarelli AA, Zheng Y, Zhang X, et al. (2014) Particle and fibre toxicology. (PubMed)
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### Dataset preview BJdata() ### Convert binary variables into factor type. BJlung$gender = factor(BJlung$gender) BJlung$heat = factor(BJlung$heat) BJlung$cigwear = factor(BJlung$cigwear) ### Merge miRNA and lung function dataset. BJdata <- merge(BJmirna, BJlung, by=c("SID","WD")) ### Sort the data by study subject id and multiple measurement indicator. BJdata <- BJdata[with(BJdata, order(SID, WD)), ] #For more information, please visit: https://github.com/YinanZheng/PGS/wiki/Example:-miRNA-expression-and-lung-function
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