Background: There are various factors that influences the age of menarche which includes genetic, nutritional status, socioeconomic status and environmental conditions. Further it has also proved that the malnutrition has delayed the age of menarche. Thus, the present study focuses on the study of relation between the nutritional status and age of menarche among the adolescent girls in a rural and urban area in Tamil Nadu, India.Methods: It is a community based cross-sectional study done in the adolescent girls of age between 11 to 15 years studying in school in the city of Chennai, India and surrounding rural areas. A total of 602 post-menarcheal adolescent girls were included in the study. The participants who were post-menarcheal were asked to recall the year and month of menarche and was noted. To assess the nutritional status, the parameters weight, height and waist circumference were determined.Results: The association between the age of menarche and BMI was studied. The study showed that there was an association with a Pearson coefficient (r) value of - 0.252 which is statistically significant (p˂0.001). The association between the age of menarche and waist to height ratio was studied. The study showed that there was an association with a Pearson coefficient (r) value of - 0.261 which is statistically significant (p˂0.001).Conclusions: This study has confirmed that the nutritional status has association with the age of menarche and is the contribution to the reduction in the mean of age of menarche in this geographical area.
Background: Under nutrition is the major public health problem in our country. There are numerous anthropometric methods, one of which is mid upper arm circumference (MUAC). MUAC cut-off classify the nutritional status of the children aged between 6-60 months. However, there is no specific cut-off for MUAC to identify the undernourished infants aged between 1-6 months. With the above background study was planned with the following objectives. Objectives of this study were to classify the nutritional status of 1-6 months aged infants using WLZ classification and to derive a cut off value for Mid upper arm circumference, to define under nutrition/wasting among 1-6 months aged infantsMethods: The cross-sectional study was carried out among 706 infants aged between 1-6 months. Nutritional status was assessed using WLZ. Various MUAC was tested against WLZ of <-2, in order to identify the cut-off below which, the infant will be considered undernourished.Results: Mean age of the participants was 96±55 days. Mean weight, length and mid upper arm circumference was 4.75±1.02 kg, 58.51±4.47 cm and 12.15±3.01cm respectively. MUAC cut-off <13.5 cm has yielded highest youden index, accuracy and sensitivity of 0.36, 0.79,99% respectively. The total area under ROC curve is 0.707 [95% CI: 0.66, 0.74; p<0.0001], having a good diagnostic accuracy and it is statistically significant.Conclusions: A MUAC cut-off value below 13.5 cm, among 1-6 months aged infants will be considered to be undernourished.
Background: The Peak Expiratory Flow Rate (PEFR) is useful to screen and monitor the severity of asthma in children. Many studies have documented that age, height and weight are some of the main factors that affect the PEFR. Thus, the present study was done to find the PEFR values among the school children and to find the factors that influences the PEFR values in our geographical area.Methods: It was a cross sectional study conducted in school children belong the rural area of Kancheepuram district, Tamil Nadu, India. A total of 378 students of both the gender at the age group of 5-10 years were selected for the study. The PEFR was measured by making the participant seated comfortably. One peak flow meter was used for 25 children and mouthpiece was changed for each student.Results: The PEFR value among and male and female participants was analyzed statistically (Table 2). The mean value of male and female study population was 169.53±37.38 and 146.24±33.01 respectively. The difference in the mean values were statistically significant (p=0.001) and found to be high in male participants. The Pearson correlation r between PEFR with height is 0.463, thus showing a positive correlation with the p˂0.001 which is statistically significant. The Pearson correlation r between PEFR and chest circumference is 0.335 thus indicating a positive correlation between PEFR and chest circumference.Conclusions: From the present study, the normal values of PEFR has been deduced for the healthy school children in our geographical area. Further, it was found that the height and chest circumference are influencing factors for PEFR. Further regression equation has been derived that can help us to find the approximate PEFR values with the help of height and chest circumference of the children.
Background: In spite of the fact, that, Body mass index being a most commonly used epidemiological tool for the assessment of nutritional status, it does not measure the visceral adiposity, which is the indicator for future cardio-metabolic risk. Hence the study was planned to determine whether Waist height ratio, which is an effective tool in measuring the visceral adiposity, has any relationship with the BMI, in assessing the nutritional status.Methods: The cross sectional study was carried out among 980 school going adolescent girls, studying in class VI-XII standard, in the schools present in urban field practice area of Tagore Medical College and Hospital. Anthropometric assessment was done. BMI and WHtR was calculated, to assess the nutritional status. Relationship between BMI and WHtR was found.Results: The mean age of the participants was 14±2.9 years. Number of participants, who were normal, underweight, overweight, obese based on BMI values were 227, 5, 301, 447 respectively According to the WHtR, 560 (57%) of them were obese, while 420 (43%) were non-obese. Moderate correlation exists between BMI and WHtR, with r = 0.68.Conclusions: Waist height ratio having a positive correlation with the BMI in the assessment of nutritional status, preference of WHtR over BMI should be encouraged, as it also helps in measuring the visceral adiposity, which, is a potent risk factor for various metabolic and cardiovascular diseases.
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