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MIAMI -- Maternal asthma was a significant risk factor for premature birth and low birth weight, even if the mother's asthma was diagnosed years before delivery, Dr. Joel Liem reported at the annual meeting of the American Academy of Allergy, Asthma, and Immunology.
"Physicians and other health care professionals need to assess present and past asthma, up to 5 years prior, in order to properly assess the risk for premature labor," Dr. Liem told reporters at a press conference at the meeting.
The investigators used information from the Manitoba Health Services Insurance Plan database, a population-based health care administrative and prescription database that has records of every child born in the province of Manitoba, Canada, as well as their mothers' records. Maternal asthma was defined two ways: as an ICD-9 code of 493 (asthma) in 1995 or a prescription for an asthma medication in 1995; or an ICD-9 code 493 in 1990-1995 or an asthma medication prescription in 1995.
Using the first definition, the prevalence of asthma among the mothers was 5.5%. But there was no statistically significant association between maternal asthma and prematurity or low birth weight.
When the second definition covering ...
Source: HighBeam Research, Maternal asthma linked to prematurity, LBW.(News)