Summary of Statistics Regarding Advanced Maternal Age

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This information is based on data from Ilsan Hospital (National Health Insurance Service).
The age with the lowest probability of related disabilities by age group:
Low birth weight: 20–24 years old (Average: 22)
Intellectual disability: 30–34 years old (32)
Language disorder: 25–29 years old (27)
Autism spectrum disorder: 20–24 years old (22)
Cerebral palsy: 25–29 years old (27)
Developmental delay: 19 years old or younger (19)
ADHD (Attention Deficit Hyperactivity Disorder): 35 years old (35)

Down syndrome: 15–16 years old (15.5)
Chromosomal abnormalities: 19–20 years old (19.5)
Sum of average values: 219
Number of items: 9
(Optimal childbirth age) = 24.33333333333333 - (Pregnancy period 10 months = 0.833333333 years) = 23.4999
= (Conclusion) 23.5 years old is the most appropriate age for marriage.
Since people were talking about age 35,
I brought only the facts.
There's a reason people say you can go up to 24 or 25 like a Christmas cake, but after 25, you're "done."
To be honest, I'm not sure why ADHD is best at age 35.
This is based on Korean standards and data collected from Korean women, so it would be good to look into international data for comparison.
I'm posting this because the propaganda regarding 35 being the "advanced maternal age" is too excessive.

It is said that in 20th-century Russia, before the culture of advanced maternal age entered from the US, women over 24 were called "old" if they were having their first child.