The Public Health Ministry has expressed concern that the IQ (intelligence quotient) of Thai children of primary education has steadily dropped below the international standard.

A survey conducted last year of 4,929 prathom 1 students across the country showed that their average IQ was 93.1 points compared to 94 three years ago which was below the international standard level of 100, said Public Health Minister Ratchata Ratchatanawin at a press conference on Wednesday.

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