Lemm A. Proos

Menarcheal age and growth pattern of Indian girls adopted in Sweden. I. Menarcheal age.

ABSTRACT. The median menarcheal age of 107 girls adopted from India by families in Sweden was 11.6 years, which was significantly lower than in Swedish and most Indian studies. Five girls had menarche before the age of 9 years, the earliest at 7.3 years. Those who arrived at a later age had earlier menarche. No differences in menarcheal age were found with respect to geographic origin. The reasons for the earlier pubertal maturation are not clear. Factors associated with the rapid transition from an underprivileged to a privileged environment are probably involved, besides genetic determinants. The serious medical, social and emotional consequences of very early pubertal development necessitate further clarification of the underlying mechanisms.

Menarcheal age and growth pattern of Indian girls adopted in Sweden. II. Catch-up growth and final height

Adopted girls (n=107) previously studied regarding menarcheal age in relation to age at arrival, were analysed as to growth pattern and final height related to nutritional status at arrival and menarcheal age. It was found that most girls had catch-up growth regarding height and half of them regarding weight. Faster catch-up and later arrival age in Sweden were associated with earlier menarche. The catch-up growth was, however, incomplete, and lower the initial height for age, lower was the height for age at the succeeding measurements, and the final height. The mean final height was 154 cm, but 8% of the girls were 145 cm or shorter. The data suggest that linear growth and final height is influenced by the preadoptive nutritional condition, as well as by the degree and timing of subsequent catch-up growth, and the timing of puberty. Pubertal onset is related to the degree and timing of catch-up growth.

Overweight more prevalent among children than among adolescents.

Aims: To study if there is a change in paediatric overweight/obesity prevalence from 1982 to 2002 in a population with a high proportion of post‐graduate education.

A longitudinal study on anthropometric and clinical development of Indian children adopted in Sweden

One hundred and fourteen children (60% girls) adopted from India through five major adoption organizations, were recruited consecutively. This paper describes the environment of the children in India and in Sweden, discusses the certainty of the ages and reports their condition at arrival in Sweden. The median age at arrival was 9.3 months, 62% being below one year of age (range 3-72 months). Infectious diseases similar in kind and frequency to those noted in child populations in developing countries, were found. Height/age and weight/age mean values were approximately -2 standard deviation scores (SDS) of the NCHS/WHO standard, which is similar to the anthropometric status of Indian average children. There were no significant sex differences. Thirty-seven birth weights were known, the majority below 2,500 g. Psychomotor retardation was found in 29% of the children. In the children with stunting and in those with weight/age less than -3 SDS at arrival there were high percentages of psychomotor retardation, anaemia and combined wasting and stunting. Therefore these children should be regarded as a risk group and be followed up with special care.

Pubertal linear growth of Indian girls adopted in Sweden

Pubertal linear growth in 66 adopted Indian girls was studied. The infancy‐childhood‐puberty standard was used, since it is applicable to Indian girls, and enables determination of the onset and height gain of the pubertal growth phase in an individual. At arrival in Sweden, mean height was —2.8 SDS. Despite rapid catch‐up growth, the girls were still below the reference mean (—0.8 SDS) at the onset of the pubertal growth spurt, which occurred approximately 1.5 years earlier than in Swedish girls and also earlier than in Indian girls. The pubertal height gain, however, was equivalent to that in Swedish girls with similar timing of puberty. The short final height found in some of these girls appears to be related to shortness prior to puberty and to very early onset of an otherwise normal pubertal growth component.

Final height after combined growth hormone and GnRH analogue treatment in adopted girls with early puberty

Background: Girls adopted from developing countries often have early or precocious puberty, requiring treatment with gonadotrophin‐releasing hormone (GnRH) analogues. During such treatment, decreased growth velocity is frequent. Aim: To study whether the addition of growth hormone (GH) to GnRH analogue treatment improves final height in girls with early or precocious puberty. Methods: Forty‐six girls with early or precocious puberty (age ± 9.5y) adopted from developing countries were randomized for treatment for 2–4 y with GnRH analogue, or with a combination of GH and GnRH analogue. Results: During treatment, the mean growth velocity in the GH/GnRH analogue group was significantly higher compared to the control group. Combined GH/GnRH analogue treatment resulted in a higher final height: 158.9 cm compared to 155.8 cm in the GnRH analogue‐treated group. Three out of 24 girls (13%) in the combined group and nine of the 22 girls (41%) treated with GnRH analogue alone attained a final height below –2 standard deviation scores (SDS).

A longitudinal study on anthropometric and clinical development of Indian children adopted in Sweden: II. Growth, morbidity and development during two years after arrival in Sweden

One hundred and fourteen consecutively recruited children adopted from India (60% girls) to Sweden were studied during 2 years after arrival, with examinations monthly the first 6 months and thereafter every 3 months. Sixty-two percent were below 1 year of age at arrival. There was a mean increase from -2.2 standard deviation scores (SDS) height/age to -0.7 SDS during the two years, and a similar development for weight/age, with no significant difference between boys and girls. The weight/height remained at around -0.8 throughout the study period. Those who had lowest height/age at arrival had the most marked catch-up, but remained smaller throughout the 2 years. The psychomotor development was initially delayed in nearly 30% of the children, mainly among those stunted and/or with very low weight at arrival. After 2 years the rate was at a level similar to Swedish children. In a sub-sample, birth weight was found to be correlated to subsequent height and weight development. Hepatitis B, salmonella, giardia lamblia, trichuris trichiura, ascaris and hymenolepis nana were still found in a small percentage after 2 years. Other morbidity was at the same level as in Swedish children. Adopted children who are stunted and/or have a very low weight at arrival should be followed up with special care, and infectious diseases found at arrival should be kept in mind for differential diagnosis at subsequent disease episodes.

Is Early Puberty Triggered by Catch-Up Growth Following Undernutrition?

Undernutrition during fetal and postnatal life is still a major problem in many low- and middle-income countries. Even in high-income countries malnutrition may exist in cases of intrauterine growth retardation, as well as in chronic conditions such as anorexia nervosa and inflammatory bowel disease. Children adopted from developing countries are often chronically malnourished. Nutritional rehabilitation, resulting in catch-up growth, is often complicated by influences originating in fetal life as well as during postnatal growth. This may result in hormonal and metabolic changes as well as alterations in pubertal development. The present review focuses on fetal, postnatal and fetal-postnatal undernutrition and subsequent catch-up growth as well as catch-up growth in relation to pubertal development. Catch-up growth in children can be associated with early puberty following fetal or combined fetal-postnatal undernutrition. However, early puberty does not seem to occur following catch-up growth after isolated postnatal undernutrition. Gonadotropins have been reported to be elevated in prepubertal adopted girls as well as during catch-up growth in animals. Even if other factors may contribute, linear catch-up growth seems to be associated with the timing of pubertal development. The mechanisms behind this are still unknown. Future research may elucidate how to carry out nutritional rehabilitation without risk for early pubertal development.

Cognitive and neuropsychological functioning in transnationally adopted juvenile delinquents.

Aim: To evaluate cognitive and neuropsychological abilities of adopted delinquent adolescents in institutional care. Methods: Transnationally adopted adolescents admitted to institutional care (n= 20) and non‐delinquent controls who were also transnationally adopted (n= 21) were compared concerning the Wechsler Intelligence Scale for Children and Adults (WISC and WAIS), the Wisconsin Card Sorting Test (WCST) and the Tower of London test (TOL). The adoptive parents answered questions about the adoption, early childhood and family circumstances by a questionnaire sent by mail. Results: The adopted delinquents had a significantly lower IQ and significantly lower results on several other measurements in the WISC/WAIS compared to the controls even after adjustment for age of arrival in the adoptive home. Both groups of adoptees scored low in the WISC/WAIS subscale of arithmetics when compared to the population mean. The TOL test showed that the delinquents were slower and made more errors than the controls.

Can bone age determination provide criteria for growth hormone treatment in adopted girls with early puberty

In treatment of idiopathic central precocious puberty, GnRH analogues (GnRHa) have been accepted as the treatment of choice. Since growth velocity may be impaired with GnRHa treatment growth hormone (GH) treatment has been added in clinical trials. Recently, a study followed adopted girls with early or precocious puberty on GnRHa or combined GnRHa and GH treatment to final height. It was found that final height was significantly higher in the combined treatment group, although the difference was small. It was seen that patients that were extremely short at arrival and short at start of treatment seemed to be candidates for combined treatment. We have now analysed the data in order to define criteria for the subgroup in need of combined GnRHa-GH treatment in order to achieve normal final height, i.e. above -2 SDS. Bone ages of 46 patients at start of treatment, randomized to either GnRHa treatment or GnRHa treatment combined with GH, were examined blindly by the same radiologist and the PAH calculated. The methods according to Greulich-Pyle / Bayley-Pinneau (GP/BP) and Tanner-Whitehouse (TW2) were used. Predictions versus final height data were analysed. The accuracy of FH prediction was greatest for GnRHa treated group using the GP/BP method. The GP/BP method gave useful cut off limits for when combined treatment was necessary to possibly achieve normal height. If pre-treatment GP/PAH was > 157cm, the patients attained normal height with GnRHa treatment only. Ten out of 13 (77%) such girls could be correctly identified. Using TW2 with a cut off of 164 cm, 9 out of 13 could be selected. Using a multi regression equation of best fit the number of correctly selected cases for GnRHa treatment only, could not be further increased in this group. We conclude that bone age determination and adult height prediction with the Greulich-Pyle/Bayley-Pinneau method, provides useful criteria for selecting the subgroup of adopted girls with early puberty where combined treatment with GnRHa and GH is not necessary to reach normal final height.