Fig. 4
From: The impact of high apparent temperature on spontaneous preterm delivery: a case-crossover study
a Crude and Adjusted Models Estimating the Percent Change Associated with a 10 °F(5.6 °C) Increase in Weekly Average Apparent Temperature and Spontaneous Preterm Delivery for Five Air Pollutants (CO, NO2, SO2, O3, and PM2.5) during the Warm Season. b Crude and Adjusted Models Estimating the Percent Change Associated with a 10 °F(5.6 °C) Increase in Weekly Average Apparent Temperature and Spontaneous Preterm Delivery for Five Air Pollutants (CO, NO2, SO2, O3, and PM2.5) during the Cold season. O Crude + Adjusted