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  • Title: Seasonality of births for West Malaysia's two main racial groups.
    Author: Johnson JT, Ann TB, Palan VT.
    Journal: Hum Biol; 1975 Sep; 47(3):295-307. PubMed ID: 1176104.
    Abstract:
    Patterns of Malay and Chinese births occurring from January 1964 through December 1969 as registered by Malaysia's Department of Statistics were analyzed by comparing them with charts of major religious and secular holidays and with the marriage distributions (by month) of the 2 ethnic groups. For Malays there was a reduction in conc eptions associated with the Moslem month of Ramadan, a period of fasting. For the Chinese, number of conceptions peaked around the Chinese New Year, the main Chinese festival. For both groups the months of high marriage rates corresponded to months of high conception rates. Seasonal fluctuations in birthrates were higher for Malays than for the Chinese, which appeared to be due to the more pervasive effect of Islamic beliefs and practices on the Malay way of life. As the Malays constitute a more rural population, climate-related factors were considered as a possible explanation of their more extreme seasonal fluctuations, but the influence of climate could not be demonstrated for either the Malays or the Chinese.
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