The Japanese Decline in Secondary Sex Ratio Correlates with Percentage Change in GDP/Annum
Journal Title: International Journal of TROPICAL DISEASE & Health - Year 2015, Vol 5, Issue 2
Abstract
Background: Male births occur in excess of female births. The ratio of male:female births is commonly referred to as M/F and is expected to approximate 0.515. Stress has been shown to decrease M/F due to an increased rate of male spontaneous abortions. Since Japan’s economy declined after the mid-1970s, this study was carried out in order to ascertain whether there was any relationship between M/F and annual change in percentage gross domestic product (GDP) in Japan. Methods: Annual male and female live births were obtained from a World Health Organisation Mortality database. GDP data was downloaded as an Excel sheet from the website of the World Bank. Data for both variables was available for the period 1961-2009. Results: This study analysed 71878631 total live births. There was an overall and abrupt decline in M/F which commenced in 1975 (0.5149, from 0.5155 in 1974), one year after the decline in percentage annual GDP growth which fell from 8.0% to -1.22 from 1973 to 1974. M/F correlated with percentage annual GDP growth (r=0.4, p=0.005). Conclusion: M/F is increasing overall in Asia, but decreasing in Japan, as is the trend in developing countries. This country exhibits a rise in GDP change along with M/F in boom years, followed by a progressive fall in both values, which occurs almost in parallel, especially after 1980. To the author’s knowledge, this is the first time that M/F has been linked with percentage annual GDP.
Authors and Affiliations
Grech Victor
Keywords
Related Articles
- EP ID EP343339
- DOI 10.9734/IJTDH/2015/14340
- Views 135
- Downloads 0
Herbal Medicines Used in the Treatment of Typhoid in the Ga East Municipality of Ghana
In Ghana, majority of the people patronize herbal medicines for the treatment of both chronic and acute ailments as well as infectious and non-infectious diseases. As such, the use of herbs as medicines in the treatment...
Spectrum of Childhood Tuberculosis: Ensuring and Making a Differential Diagnosis by Tuberculin Skin Test and Clinical Signs in Kisangani, DR Congo
Background: Early diagnosis of childhood tuberculosis (CTB) could enable rapid diagnosis and management of TB epidemic within a community at high risk. This study was undertaken to determine the performance of Tuberculin...
Effectiveness of Sulphadoxine Pyrimethamine in Intermittent Preventive Treatment of Malaria in Pregnancy at Federal Medical Centre, Abeokuta
Objective: To determine the effectiveness of sulphadoxine – pyrimethamine (SP) in intermittent preventive treatment of malaria in pregnancy at Federal medical centre, Abeokuta. Design: Randomized controlled trial. Settin...
Prevalence and Determinants of Antimalarial Self-medication in Southern Benin
Aims: To determine the prevalence of antimalarial self-medication and identify its determinants in Comé, Southern Benin households. Study Design: Cross-sectional community based study. Place and Duration of Study: Benin...
Preparation of Inactivated Trivalent FMD Vaccine and Determination of Antibody Titre in Vaccinated Cattle
Aims: This research work was conducted for isolation and molecular detection of Foot and Mouth Disease (FMD) virus from the field samples, development of inactivated trivalent FMD vaccine, and determination of antibody t...