|
first
|
period of first mission to the Chornobyl zone
|
|
days_act
|
duration of active work in the Chornobyl zone in days
|
|
Case_leuk
|
case of leukemia in the study of Zablotska et al. 2013
|
|
Year_first_exposed
|
year first exposed via work in Chornobyl exclusion zone (calculated from dose record)
|
|
Year_last_exposed
|
year last exposed via work in Chornobyl exclusion zone (calculated from dose record)
|
|
proxya
|
proxy interviews
|
|
proxy_str
|
proxy status based on the cases status in the set
|
|
number1
|
number of missions
|
|
first_year
|
year first exposed via work in Chornobyl exclusion zone
|
|
duration
|
total duration of work in the Chornobyl zone in months
|
|
duration_act
|
duration of active work in the Chornobyl zone in months
|
|
days
|
total duration of work in the Chornobyl zone in days
|
|
tse
|
time since first exposure in the zone until diagnosis (for cases) and reference time (for controls) in years; tse < 0 (n = 4) is set to 0
|
|
radiation
|
non-Chornobyl work with radiation exposure
|
|
industry
|
work in hazardous industries
|
|
oil
|
oil or chemical industry
|
|
chemical
|
non-Chornobyl work with hazardous chemicals
|
|
petroleum
|
work in petroleum industry
|
|
pesticides
|
work with pesticides
|
|
solvents
|
work with solvents
|
|
other_chemical
|
work with hazardous chemicals other than in petroleum industry/pesticides/solvents
|
|
age
|
age at diagnosis (for cases) and age at reference date (for controls)
|
|
age_x
|
age at first exposure in the zone
|
|
subtypea
|
subtype of leukemia
|
|
subtypeclla
|
CLL subtype
|
|
subtypecll_str
|
CLL subtype, based on the case status, matching controls set to case status
|
|
y_dxa
|
year of diagnosis; for controls set to −1
|
|
reference
|
reference year set to year of diagnosis (for cases) and for controls is the same as for matched case
|
|
y_int
|
year of interview
|
|
liqtype
|
type of work performed in the Chornobyl zone during the first mission
|
|
flag1
|
additional controls re-distributed among cases
|
|
flag2
|
controls used in risk analysis for Phase I but now matched to their original case used in set Phase II
|
|
flag_definite
|
certainty in the leukemia diagnosis (definite + probable/other)
|
|
Phase
|
study phase (phase I/phase II)
|
|
COM1_EXP1
|
dosimetry expert’s opinion about the quality of interview during the 1st mission to the 30-km exclusion zone
|
|
COM2_EXP1
|
dosimetry expert’s opinion about the quality of interview during the 2nd mission to the 30-km exclusion zone
|
|
COM3_EXP1
|
dosimetry expert’s opinion about the quality of interview during the 3rd mission to the 30-km exclusion zone
|
|
QUES1
|
interviewer’s opinion on the quality of questionnaire: Did subject reply with interest?
|
|
QUES2
|
interviewer’s opinion on the quality of questionnaire: Did the worker remember his job in the 30-km exclusion zone?
|
|
Liquid
|
clean-up worker with data on interviewer’s opinion about the quality of interview
|
|
Exp
|
expert dosimetrist who prepared dosimetric questionnaire for input into RADRUE
|
|
time_int_ch
|
time from interview to chemotherapy (date of start of chemotherapy for CLL and date of diagnosis for non-CLL)
|
|
seta
|
cases with direct interviews
|
|
t11a
|
if time_int_ch ≠ 99 and time_int_ch ≠ −1 and cases = 1 and proxy = 0 and −1 ≤ time_int_ch ≤ 1 then t11 = 1;else t11 = 0;
|
|
t1515a
|
if time_int_ch ≠ 99 and time_int_ch ≠ −1 and cases = 1 and proxy = 0 and −1.5 ≤ time_int_ch ≤ 1.5 then t1515 = 1;else t1515 = 0;
|
|
t12a
|
if time_int_ch ≠ 99 and time_int_ch ≠ −1 and cases = 1 and proxy = 0 and −1.0 ≤ time_int_ch ≤ 2.0 then t12 = 1;else t12 = 0;
|
|
t22
|
if time_int_ch ≠ 99 and time_int_ch ≠ −1 and cases = 1 and proxy = 0 and −2.0 < time_int_ch < 2.0 then t22 = 1; else t22 = 0
|
|
liqtype_recode
|
type of work performed in the Chornobyl zone during the first mission recoded (from liqtype) (missing/early responders & firefighters/professional nuclear power workers/military personnel/drivers & construction workers)
|
|
num_miss
|
number of missions to the Chornobyl exclusion zone
|
|
rad_exp
|
study subject ever worked with radiation (other than the time the study subject spent in the Chornobyl area)
|
|
rad_radiography
|
study subject ever worked with radiation as industrial radiographer (other than time study subject spent in the Chornobyl area)
|
|
rad_nuclear
|
study subject ever worked with radiation in the nuclear industry (including NPP, other than time the study subject spent in the Chornobyl area)
|
|
rad_army
|
study subject ever worked with radiation in army service (other than time the study subject spent in the Chornobyl area)
|
|
rad_other
|
study subject ever worked with radiation other than in army/nuclear industry/industrial radiography (other than time the study subject spent in the Chornobyl area)
|
|
haz_exp
|
study subject ever worked in a hazardous industry (specific types of chemical/electrical/road-building/other)
|
|
haz_chem
|
study subject worked in chemical industry/oil industry (hazardous industry)
|
|
haz_el
|
study subject worked in electrical industry (hazardous industry)
|
|
haz_road
|
study subject worked in road-building industry (hazardous industry)
|
|
haz_other
|
study subject worked in one of coal mining/military service/metallurgical industry/welding/gas equipment/other hazardous industries (hazardous industry)
|
|
chem_exp
|
Has the study subject ever worked with hazardous chemicals?
|
|
chem_petrol
|
study subject worked with petrol (petrol and agricultural pesticides/petrol and organic solvents)
|
|
chem_pest
|
study subject worked with agricultural pesticides (petrol and agricultural pesticides/agricultural pesticides and organic solvents/agricultural pesticides and other)
|
|
chem_solva
|
study subject worked with organic solvents (petrol and organic solvents/agricultural pesticides and organic solvents)
|
|
chem_other
|
study subject worked with hazardous chemical other than petroleum/agricultural pesticides/organic solvents
|
|
Oblast
|
Dnipropetrovsk/Kyiv oblast/Kharkiv/Cherkassy/Chernihiv/Kyiv-city
|
|
Educ
|
level of education of interviewee (8 years or less school/high school/trade school/higher education)
|
|
Urban
|
Type of settlement (city/village/other)
|
|
radtxa
|
Has the study subject had radiotherapy for cancer treatment
|
|
chemotxa
|
Has study subject had chemotherapy for cancer treatment
|
|
radtx_other
|
Has the study subject ever received radiotherapy for medical conditions other than cancer
|
|
x_dental
|
Has study subject ever had dental X-ray?
|
|
x_dental_n
|
Number of times study subject has had dental X-ray
|
|
x_bone
|
Has interviewee ever had bone X-ray?
|
|
x_bone_n
|
Number of times interviewee has had bone X-ray?
|
|
x_chest
|
Has study subject ever had chest X-ray (except fluoroscopy)
|
|
x_chest_n
|
Number of times study subject ever had chest X-ray (except fluoroscopy)
|
|
x_other
|
Has the interviewee ever had other X-ray examinations (than bone, chest, dental)?
|
|
x_other_n
|
How many times interviewee had any other type (than bone, chest, dental) of X-ray examination?
|
|
fam_cancer
|
Have any of interviewee’s relatives had any solid cancer or leukemia (mother or father, or other relative)?
|
