ARK combined analytical dataset

Malawi, 2018 - 2019

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Reference ID

DDI-MWI-MEIRU-ARK-2018-v01

Producer(s)

Professor Amelia (Mia) Crampin

Collections

Karonga HDSS Combined / Harmonized Datasets Lilongwe HDSS

Metadata

Documentation in PDF DDI/XML JSON

Created on

Nov 14, 2025

Last modified

Nov 18, 2025

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18028

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Data file: ark_combined_final_meiruid

The dataset includes the MEIRU id and contains data from everyone who was selected to take part in the ARK regardless of whether they did (to enable calculation of response rates): to only keep records with survey data use the arkq_m variable (drop everyone with arkq_m=0)
In the variable labels (S) indicates that the variable is unchanged from the original source and (D) indicates that it is a 'derived' variable, often using more than one source variable. For both types information on where the data come from and how they are processed is found in the 'Recoding and Derivation' section

Cases:	1321
Variables:	286

Variables

site

Karonga/Lilongwe (D)

stid

stidncd

ark_id

Participant ID (D)

visit

lhhno

Lilongwe house number (S)

crshse

Karonga house id (D)

ark_hhid

House Number (D)

print_date

ph1_date

Phase 1 date (S)

ph1elig

Phase 1 eligible (S)

ph1consent

Phase 1 consent (S)

ph1complete

Phase 1 complete (S)

ph2_arrdate

Phase 2 arranged date (S)

ph1rcdr

Phase 1 staffcode (S)

ph2_date

Actual Phase 2 date (S)

ph2elig

Phase 2 eligible (S)

ph2complete

Phase 2 complete (S)

apbn

urine24

Urine taken at 24 hrs (S)

ph2rcdr

Phase 2 staffcode (S)

comments

fl_missing

if field-log missing (D)

sex

age

participant age in years (D)

id_m

result of merging sex & dob to main data (D)

intdate

Interview date (S)

consenta

Read info sheet (S)

consentb

Consent to participate (S)

consentb_withdrawn

Consent to participate withdrawn (D)

consentc

Consent to give blood (S)

consentc_withdrawn

Consent to give blood withdrawn (S)

consentd

Consent to be tested for HIV (S)

consentd_withdrawn

Consent to be tested for HIV withdrawn (D)

consente

Consent to blood storage (S)

consentf

Consent to iohexol injection (S)

consentf_withdrawn

Consent to iohexol injection withdrawn (D)

consentg

Consent to BP monitoring (S)

consenth

Consent to collect urine (S)

consenti

Consent to share data (S)

disclosure

Would like results (S)

cons_missing

if consent data is missing (D)

cons_m

consent data availability (D)

ageyear

How old are you? (S)

ethnic

What is your ethnic group/racial group/cultural subgroup background? (S)

ethnicoth

Ethnicity, other, SPECIFY (S)

educft

Are you in fulltime education? (S)

educat

Highest level of education (S)

incsub

Subsistence farming (S)

inccomfarm

Commercial farming (S)

incwage

Wage employment (S)

incnonagric

Non-agricultural enterprises (S)

incprop

Property income (S)

inctransfer

Transfers (pension, allowances, social security benefits etc) (S)

incremit

Remittances (S)

incsupp

Organisational support (food aid, WFP, NGO etc) (S)

incoth

incothdet

Other source of income, specify. (S)

evermar

Have you ever been married? (S)

agefirstmar

How old were you when you first got married? (S)

everpreg

WOMEN ONLY. Have you ever been pregnant? (S)

pregm12

In the past 12 months, have you become pregnant? (S)

ancuse

Did you attend antenatal clinic? (S)

preghighbp

Have you ever had high blood pressure in pregnancy? (S)

pregdiab

Have you ever had diabetes in pregnancy? (S)

termina

Have you ever had a miscarriage and or still birth? (S)

cursmoke

Do you currently smoke any tobacco products? (S)

cursmoked

Do you currently smoke tobacco products daily? (S)

eversmoked

Have you ever smoked cigarettes regularly (i.e at least weekly)? (S)

agesmoke

How old were you when you started smocking (S)

stopsmoked

How long ago did you stop smoking daily? (S)

othtobyn

Do you commonly chew any tobacco products? (S)

othtobfreq

How frequently do you chew tobacco? (S)

everalcohol

Have you ever consumed alcohol (S)

alcoholm12

In the past 12 months, how freq have you had at least one alcoholic drink? (S)

alcohol12ml

In the past 12 mths, how freq have you had at least one alcoholic drink? (S)

alcohold30

Have you consumed an alcoholic drink within the past 30 days? (S)

alcohold30l

In the past 30 days, how often did you have at least one alcoholic drink? (S)

alcoholwhen

When was the last time you had an alcoholic drink? (S)

vigwork

Does your work or daily activities involve vigorous-intensity activity? (S)

vigworkwk

In a typical week, on how many days do you do these activities? (S)

vigworkhrs

vigworkmins

fruitvegfreq

How many times each week do you eat fresh fruit or uncooked vegetable? (S)

saltfreq

How often do you add salt to your food? (S)

waterfreq

How much water do you drink in a day? (S)

famdia

fambp

Hypertension (S)

famheart

Heart disease (S)

famd

Dyslipidaemia (S)

famckd

Chronic Kidney disease (S)

everbp

Have you ever had your blood pressure measured by a health worker? (S)

diabhyp

ever been told by a health worker that you have raised blood pressure? (S)

hbp3lessyr

Have you had raised blood pressure or hypertension for less than a year (S)

hbp3

Have you had raised blood pressure or hypertension for less than a year (S)

diabhypm12

been told in the past 12 mths that you have raised blood pressure? (S)

remdbpw2

In the past two weeks, have you been treated for raised BP with drugs? (S)

everbsug

Have you ever had your blood sugar measured by a health worker? (S)

diabsug

ever been told by a health worker that you have raised blood sugar? (S)

hd3lessyr

Have you had raised blood sugar or diabetes for less than a year (S)

hd3

Have you had raised blood sugar or diabetes for less than a year (S)

diabsupm12

been told in the past 12 months that you have raised blood sugar? (S)

remddiabnow

Today have you taken insulin or other drugs for raised blood sugar? (S)

everchole

ever had your cholesterol measured (by blood test) by a health worker? (S)

diachole

Have you ever been told by a health worker that you have high cholesterol? (S)

diacholem12

Have you been told in the past 12 months that you have high cholesterol? (S)

remdchow2

In the past 2 wks, have you been treated for high cholesterol with drugs? (S)

everloinp

Have you ever suffered from Loin pain? (S)

everuti

Have you ever had repeated episodes of urinary tract infection? (S)

diakid

ever been diagnosed with kidney disease by a health professional? (S)

hckdlessyr

Have you had kidney disease for less than a year (S)

hckd

Have you had kidney disease for less than a year (S)

diakdm12

Have you been told in the past 12 months that you have Kidney Disease? (S)

remkdwnow

Today, have you taken drugs for Kidney disease? (S)

tradmed

Have you ever taken traditional medicine? (S)

tradmedm12

Have you taken in the last 12 months traditional medicine? (S)

tradmedlast

When did you last take traditional medicine? (S)

trt

Have you ever taken treatment for any chronic disease (S)

remddiab

Taken treatment for diabetes (S)

remdbp

Taken treatment for high blood pressure (S)

remdckd

Taken treatment for chronic Kidney disease (S)

remdtb

Taken treatment for TB (S)

remdheart

Taken treatment for heart disease (S)

remdcancer

Taken treatment for cancer (S)

remdbackp

Taken treatment for back pain (S)

remdother

Taken treatment for other (S)

remdothertxt

Please state which other disease(s) (S)

remddiabl

How long did you take treatment for diabetes (S)

remdbpl

How long did you take treatment for high Blood pressure (S)

remdckdl

How long did you take treatment for chronic Kidney disease (S)

remdtbl

How long did you take treatment for TB (S)

remdheartl

How long did you take treatment for heart disease (S)

remdcancerl

How long did you take treatment for cancer (S)

remdbackpl

How long did you take treatment for back pain (S)

remdotherl

How long did you take treatment for other (S)

tmtcur

For the previous disease(s) , are you still taking the treatment? (S)

remddiabcur

Currently taking treatment for diabetes (S)

remdbpcur

Currently taking treatment for high Blood pressure (S)

remdckdcur

Currently taking treatment for chronic Kidney disease (S)

remdtbcur

Currently taking treatment for TB (S)

remdheartcur

Currently taking treatment for heart disease (S)

remdcancercur

Currently taking treatment for cancer (S)

remdbackpcur

Currently taking treatment for back pain (S)

remdothercur

Currently taking treatment for other (S)

painkcur

Are you currently taking any pain killers? (S)

painkl

How long have you been taking the pain killers? (S)

medace

ACE/ARB Enalpril, Captopril, Lisonopril or Lorsartan/Ibersatan (S)

medbeta

Beta blockers eg propranolol; atenolol, carvedilol, bisoprolol (S)

medcalc

Calcium channel blocker eg Nifedipine/ Amilodipine/Adalat XL (S)

meddiur

Diuretics; Bendrofluazide/ Hydrochlorothalidone Lasix/ other diuretic (S)

mednsaids

NSAIDS, asprin, diclofenac, ibubrofen, aceclofenac (S)

medantibs

Gentamycin, other antibiotics (S)

medoth

medothdet

Other current diabetes medicines participant is taking, specify: (S)

currail

Do you have any medical complaint at the moment? (S)

muac

Mid-upper arm circumference (S)

bparmr

Blood pressure measured on right arm (S)

bparmrwhy

Reason for using left arm (S)

sysbpf

1st systolic (S)

sysbps

2nd systolic (S)

sysbpt

3rd systolic (S)

diabpf

1st diastolic (S)

diabps

2nd diastolic (S)

diabpt

3rd diastolic (S)

refbp

Referral slip given for high blood pressure? (S)

refbpno

Why did you not give a referral slip (S)

pulsef

pulse2

pulse3

bptime

Time blood pressure taken: (S)

height

Height (cm) (S)

heightcom

Height comment (S)

weight

Weight (kg) (S)

waiscf

1st measure of waist circumference (cm) (S)

waiscs

2nd measure of waist circumference (cm) (S)

waisct

3rd measure of waist circumference (cm) (S)

hipcuf

1st measure of hips circumference (cm) (S)

hipcus

2nd measure of hips circumference (cm) (S)

hipcut

3rd measure of hips circumference (cm) (S)

biadeid

Device ID for BIA (S)

biadeidoth

Other Device ID for BIA (S)

biadeev

BIA Device make and model (50Hz supine) (S)

biadeevoth

Other Device ID for BIA (S)

biatestnum

Test Number (S)

biofmassf

Bioimpedance outputs (fat mass) Kg (S)

bioffmassf

Bioimpedance outputs (fat free mass/lean mass) Kg (S)

biodlmassf

Bioimpedance outputs (Dry lean mass) Kg (S)

biotwmassf

Bioimpedance outputs (Total body water) Kg (S)

biovalf

Bioimpedence value (Î©) (S)

biofmasss

Bioimpedance outputs (fat mass) Kg (S)

bioffmasss

Bioimpedance outputs (fat free mass/lean mass) Kg (S)

biodlmasss

Bioimpedance outputs (Dry lean mass) Kg (S)

biotwmasss

Bioimpedance outputs (Total body water) Kg (S)

biovals

Bioimpedence value (Î©) (S)

arkq_m

questionnaire data availability (D)

uelec_basefoll

urine electrolyte sample fasting status (D)

uelec_datecoll

urine electrolyte sample date of collection (D)

uelec_na_units

urine electrolyte result: sodium (D)

uelec_creat_units

urine electrolyte result: creatinine (D)

uelec_ualb_units

urine electrolyte result: urine albumin (D)

uelec_m

urine electrolyte result data availability (D)

selec_basefoll

serum electrolyte sample fasting status (D)

selec_datecoll

serum electrolyte sample date of collection (D)

selec_na_units

serum electrolyte result: sodium (D)

selec_k_units

serum electrolyte result: potassium (D)

selec_creat_units

serum electrolyte result: creatinine (D)

selec_urea_units

serum electrolyte result: urea (D)

selec_m

serum electrolyte result data availability (D)

fbc_basefoll

full blood count sample fasting status (D)

fbc_datecoll

full blood count sample date of collection (D)

wbc

full blood count result: white blood cell (S)

rbc

full blood count result: red blood cell (S)

hgb

full blood count result: haemaglobin (S)

hct

full blood count result: haematocrit (S)

mcv

full blood count result: mean corpuscular volume (S)

mch

full blood count result: mean cell haemoglobin (S)

mchc

full blood count result: mean corpuscular haemoglobin concentration (S)

plt

full blood count result: platelets (S)

ne

full blood count result: neutrophils (S)

lymphper

full blood count result: lymphocyte percentage (S)

lymphtot

full blood count result: lymphocyte total (S)

neutroper

full blood count result: neutrophil percentage (S)

neutronum

full blood count result: neutrophil total (S)

mo

full blood count result: monocytes (S)

eo

full blood count result: eosinophils (S)

ba

full blood count result: basophils (S)

fbc_m

full blood count data availability (D)

gluc_basefoll

glucose sample fasting status (D)

gluc_datecoll

glucose sample date of collection (D)

gluc_units

glucose result (D)

gluc_m

glucose test result data availability (D)

hep_basefoll

hepatitis sample fasting status (D)

hep_datecoll

hepatitis sample date of collection (D)

hbv_testout

hepatitis result: HBV (D)

hcv_testout

hepatitis result: HBC (D)

hep_m

hepatitis test result data availability (D)

mal_basefoll

malaria sample fasting status (D)

mal_datecoll

malaria sample date of collection (D)

mal_result

malaria result (D)

mal_m

malaria test result data availability (D)

rtr_datecoll

HIV rapid test sample date of collection (D)

rtr_result

HIV rapid test result (D)

rtr_m

HIV rapid test result data availability (D)

uri_basefoll

urinalysis sample fasting status (D)

uri_datecoll

urinalysis sample date of collection (D)

glucose

urinalysis result: glucose (D)

gravity

urinalysis result: gravity (D)

blood

urinalysis result: blood (D)

ph

urinalysis result: ph (D)

protein

urinalysis result: protein (D)

nitrites

urinalysis result: nitrites (D)

leucocytes

urinalysis result: leucocytes (D)

uri_m

urinalysis data availability (D)

iohex

iohex start time? (D)

iohex_datecoll

date of iohex test (D)

iohex_time1

iohex time 1 (D)

iohex_time2

iohex time 2 (D)

iohex_time3

iohex time 3 (D)

iohex_time4

iohex time 4 (D)

syr_numb

Syringe number :0001-1001 (D)

syr_fullweight

Filled weight :5g-20g (D)

syr_usedweight

After used weight:5g-20g (D)

syr_used_date

iohex_m

iohex data availability (D)

iohex_resultI1

iohex result 2 (D)

iohex_comment1

iohex comment 2 (D)

iohex_resultI2

iohex result 3 (D)

iohex_comment2

iohex comment 3 (D)

iohex_resultI3

iohex result 4 (D)

iohex_comment3

iohex comment 4 (D)

iohex_resultI4

iohex result 5 (D)

iohex_comment4

iohex comment 5 (D)

iores_m

iohex result data availability (D)

genchem_basefoll

gen chem sample fasting status (D)

genchem_datecoll

gen chem sample date of collection (D)

crp_units

asot_units

ASOT result (D)

genchem_m

gen chem results data availability (D)

sch_basefoll

schisto sample fasting status (D)

sch_datecoll

schisto sample collection date (D)

ovaseen

schisto result (D)

sch_m

schisto test result data availability (D)

hba_basefoll

HBA1c sample fasting status (D)

hba_datecoll

HBA1c sample collection date (D)

hba1c_units

HBA1c result (D)

hba_m

HBA1c test result data availability (D)

Total: 286

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