Still, Dr. Bernstein said the study was strong not just because of its size but because it weighed factors other than malformations, such as birth weight, that also affect the health of the baby.

伯恩斯坦博士还说，这项研究之所以强大，不仅是因为它的规模，还因为它考虑到除畸形以外同样影响婴儿健康的因素，如出生体重。

youdao

Prior studies have indicated that babies born to older women have higher risks of birth defects, low birth weight and certain chromosome problems, such as Down syndrome.

以往的研究者已经指出过，大龄孕妇生育的孩子极易患出生缺陷、出生体重低、类似先天痴呆的某些染色体疾病。

youdao

Newborns in special circumstances, such as low-birth-weight babies, babies born to HIV-positive mothers, or sick babies, require additional care and should be referred to a hospital.

情况特殊的新生儿，如低出生体重婴儿、母亲为艾滋病毒阳性的婴儿，或患病婴儿等，需要额外医护，应当将他们送往医院。

youdao

It is also possible that low birth weight is indicative of harsh living conditions, such as poverty, which may make a child experiencing them more likely to be depressed.

BBC: NEWS | Health | 'Depression link' to small babies

However, previous research has linked low birth weight to an increased risk of attention deficit disorder, as well as physical conditions such as cardiovascular disease, and diabetes.

BBC: NEWS | Health | 'Depression link' to small babies