Table 2 Schedule of data collection activities over the intervention period

Background sociodemographics; food security status, two-week child morbidity recall

x

Amount of salt used and amount of salt distributed

x

x

x

x

x

x

x

x

x

x

x

x

Acceptability of study salt, morbidity

x

x

x

x

x

x

x

x

x

x

x

x

Structured interviews to obtain detailed acceptability data^a

x

x

x

x

Child dietary assessment^b

x

x

x

x

x

x

x

x

x

x

x

x

Laboratory analyses of salt samples

x

x

x

x

Anthropometric measurements

x

x

x

Capillary blood draw for hemoglobin measurement

x

x

X

Venous blood draw for assessment of malaria, CBC, serum zinc, ferritin, sTfR, CRP, AGP, vitamin B12, folate, holoTC, MMA, thyroglobulin, plasma homocysteine, RBC folate

x

x

x

Urinary iodine and creatinine concentrations

x

x

x

Stool samples^b

x

x

Fingernail samples

x

x