Access to iodized salt in 11 low- and lower-middle-income countries: 2000 and 2010.

Objective: To describe changes in household access to iodized salt in relation to socioeconomic factors.

Methods: We extracted data on iodized household salt from Multiple Indicator Cluster Surveys conducted in 2000 and 2010. As part of the surveys, household salt samples were tested for iodization by standardized rapid-test kits that yield results to indicate whether salt is not iodized, inadequately iodized, (less than 15 parts per million, ppm), or adequately iodized (more than 15 ppm).

The impact of iodine supplementation and bread fortification on urinary iodine concentrations in a mildly iodine deficient population of pregnant women in South Australia.

Mild iodine deficiency during pregnancy can have significant effects on fetal development and future cognitive function. The purpose of this study was to characterise the iodine status of South Australian women during pregnancy and relate it to the use of iodine-containing multivitamins. The impact of fortification of bread with iodized salt was also assessed.

Neurological damage to the fetus resulting from severe iodine deficiency during pregnancy.

Endemic cretinism is characterised by multiple neurological defects including deaf-mutism, diplegia, squint, and mental deficiency. The condition is widely prevalent in the Highlands of New Guinea in association with severe iodine deficiency. Previous studies have shown that iodised oil provides a very satisfactory correction of severe iodine deficiency in New Guinea.

The development of a global program for the elimination of brain damage due to iodine deficiency.

Iodine deficiency is the most common preventable cause of brain damage with more than 2 billion people from 130 countries at risk. The global problem of iodine deficiency has been redefined by a readily transmitted population concept, with an easy acronym - the concept of the iodine deficiency disorders (IDD) - referring to all the effects of iodine deficiency in a population, that can be totally prevented by correction of iodine deficiency with special emphasis on brain damage and not just to goitre and cretinism (1983). This was followed by the creation of the International Council for Control of Iodine Deficiency Disorders (ICCIDD) supported by WHO and UNICEF with 700 multidisciplinary professionals from more than 100 countries, committed to providing technical assistance to national programs for the elimination of IDD (1986).

Iodine status in late pregnancy and psychosocial determinants of iodized salt use in rural northern Viet Nam.

Objective: To establish iodine status among pregnant women in rural northern Viet Nam and explore psychosocial predictors of the use of iodized salt in their households.

Methods: This prospective study included pregnant women registered in health stations in randomly-selected communes in Ha Nam province. At recruitment (< 20 weeks of gestation), sociodemographic factors, reproductive health, intimate partner relationship, family violence, symptoms of common mental disorders and use of micronutrient supplements were assessed.

Cretinism revisited.

Endemic cretinism includes two syndromes: a more common neurological disorder with brain damage, deaf mutism, squint and spastic paresis of the legs and a less common syndrome of severe hypothyroidism, growth retardation and less severe mental defect. Both conditions are due to dietary iodine deficiency and can be prevented by correction of iodine deficiency before pregnancy. Endemic cretinism is now included in the spectrum of the effects of iodine deficiency in a population termed the 'iodine deficiency disorders (IDDs)', which also includes a wide range of lesser degrees of cognitive defect that can be prevented by the correction of iodine deficiency.

Altering Mueller-Lyer illusion magnitude using figural additions at the wing-shaft intersections.

The Mueller-Lyer (ML) illusion has been used to study the way in which perceived length is affected by processes of information extraction when a visual target of interest (the ML shaft) is surrounded by other nontarget figural elements (inward-or outward-turning wings). It is argued that the perception of length is computed in terms of the center of gravity or centroid of figural elements at the wing-shaft intersection. The outward-turning wings shift the computational centroid away from the shaft end, giving rise to an erroneous overestimation of shaft length, while the inward-turning wings have the opposite effect.

Eliminating iodine deficiency disorders--the role of the International Council in the global partnership.

Iodine deficiency is the most common preventable cause of brain damage. WHO estimates that some 2.2 billion people are at risk from iodine deficiency in 130 countries.

Historical perspectives on indigenous health in Australia.

In spite of much effort over the past 25 years, the life expectancy of the indigenous people remains nearly 20 years behind the non-Aboriginal white population of Australia. These figures compare unfavourably with the improved life expectancy over the past 25 years of other indigenous peoples, such as the New Zealand Maori and the American Indian populations. By 1990-94, the average Australian indigenous all-cause mortality rate was 1.

Iodine and neuropsychological development.

The establishment of the essential link among iodine deficiency, thyroid function and brain development has emerged from a fascinating combination of clinical, epidemiologic and experimental studies. The central human phenomenon that focuses this relationship is the condition of endemic cretinism, described from the Middle Ages and characterized in its fully developed form by severe brain damage, deaf mutism and a spastic state of the hands and feet. The demonstration of the prevention of cretinism in a double-blind controlled trial with injections of iodized oil in Papua New Guinea (1966-1970) established the causal role of iodine deficiency in cretinism by an effect on the developing fetal brain.

Iodine Deficiency and the Brain.

The effects of iodine deficiency on growth and development are known as the iodine deficiency disorders (IDDs). Most common is goitre at all ages, but most significant are the effects on brain development during pregnancy. The major effect of iodine deficiency is the clinical syndrome of endemic cretinism characterised in its fully developed form by mental defect, deaf mutism and spastic diplegia.

Iodine deficiency: a global problem.

The United Nations and other international organisations, in cooperation with national governments, aim to eliminate this major cause of fetal brain damage by the year 2000.

Communication and health--health as an ecosystem.

The importance of communication in public health is described with reference to recent experiences in Australia where good progress has been made with certain major public health problems. There has been a 30% fall in road accident deaths and a 40% fall in deaths from coronary heart disease, and a smoke free environment has been established in public places and in the work place. These successes depended on effective communication based on appropriate data.

The effect of thyroxine, 3, 5-dimethyl-3'isopropyl-L-thyronine and iodized oil on fetal brain development in the iodine-deficient sheep.

Studies have been carried out to investigate the role of maternal and fetal thyroid function in the effects of iodine deficiency on fetal brain development in sheep. Iodine deficiency was established with an especially prepared low-iodine diet of maize and pea pollard. The iodine-deficient sheep were mated and the end of the second trimester of pregnancy (100 days gestation) were divided into groups which received either a sc injection of T4 or 3,5-dimethyl-3-isopropyl-L-thyromine or an injection of iodized oil.