84% of studies showed a significant association between air pollution and heat and poor pregnancy outcomes

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Standfirst ...
% of air pollution studies associated with negative outcomes
0%
25
50
75
100%
Preterm births (19/24)
Low weight births (25/29)
Stillbirths (4/5)
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Standfirst ...
% of heat studies associated with negative outcomes
0%
25
50
75
100%
Preterm births (4/5)
Low weight births (3/3)
Stillbirths (2/2)