Fig. 1From: Prenatal exposure to the Dutch famine is associated with more self-perceived cognitive problems at 72 years of ageDerivation of study participants. The questionnaire was sent to all 1207 eligible participants. aThese babies had not been registered in Amsterdam at birth. bThese individuals refused permission to record their address or retracted their permission later. cInvalid home address and could not be reached by phone or no correct phone number and validity of home address unknown. dNo telephone contact established (5 attempts) or contact established but no subsequent reaction. eParticipants were physically or mentally ill, or cognitively impaired and therefore declined participationBack to article page