Table 1.
Visit | Ante-natal | Birth | < 2 wks | 3 mths | 7 mths | 13 mths | 24 mths | 3 years | 5 yrs | 8 yrs |
---|---|---|---|---|---|---|---|---|---|---|
Site | HPAB | HPAB | Home | HPAB/home | HPAB/home | Home | HPAB/home | HPAB/home | HPAB/home | Home |
Child | ||||||||||
Questionnaire | X | X | X | X | X | X | X | X | ||
Faeces | X | X | X | X | X | X | X | X | X | |
Blood | Xa | X | X | X | X | X | X | X | ||
Clinical exam | X | X | X | X | X | X | X | X | ||
Anthropometry | X | X | X | X | X | X | ||||
SPT | X | X | X | X | ||||||
PFTs/BHR | X | |||||||||
Mantoux test | X | |||||||||
Mother | ||||||||||
Questionnaire | X | X | X | X | ||||||
Faeces | X | X | X | |||||||
Blood | X | |||||||||
SPT | ||||||||||
Father | ||||||||||
Faeces | X | X | ||||||||
SPT | ||||||||||
Household | ||||||||||
GPS | Xb | Xb | ||||||||
Dust | Xb | |||||||||
Faeces | X |
Stool samples are collected also at 18 and 30 months. HPAB-Hospital Padre Alberto Buffoni in Quinindé, Esmeraldas Province; SPT-allergen skin test reactivity; PFTs-pulmonary function tests measured by spirometry; BHR-bronchial hyperresponsiveness or evidence of reversibility following β2 agonist; GPS-geographic positioning system measurements for mapping of households. a immunology sub-cohort only. b measurements repeated for change of address.