Effects of air pollution on neonatal prematurity in Guangzhou of China: a time-series study.

Environ Health · 2011 · PMC3024279 · PMID 21214958

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an increasing trendno p-value reported

In other words, effects could only maintain on day 0, while the time span for cumulative effects lasted longer with an increasing trend of point estimate of risk, reaching its maximum on day 3 approximately, indicating that cumulative effects model was more sensitive than that of lag effects.

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