Not with any reliability above chance. The largest population study on the method, covering 2.8 million Swedish births, found about 50% accuracy, statistically the same as flipping a coin. Use it for fun only.
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Cross the mother's age with the conception month on the traditional Chinese chart. Folklore and fun, no medical basis.
Legend places the chart's origin in the Qing Dynasty court (1644-1912), a closely guarded secret the imperial family reportedly used to try to predict male heirs; the document is said to have disappeared from the Summer Palace in 1900 and resurfaced decades later in a Hong Kong newspaper in the 1970s. The mechanic crosses the mother's lunar age at conception with the lunar month of conception on a 28-row by 12-column grid. A University of Michigan study, analyzing 2.8 million Swedish births with the same algorithm, found about 50% accuracy, statistically identical to chance. Treat the result as a cultural curiosity, not medical information.
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<iframe
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Not with any reliability above chance. The largest population study on the method, covering 2.8 million Swedish births, found about 50% accuracy, statistically the same as flipping a coin. Use it for fun only.
This is folklore, not medicine: the method has no proven scientific basis. A study of 2.8 million births found about 50% accuracy, the same as a coin flip. Use it for fun only.
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