Table 4 Association between daily concentrations of atmospheric pollutants and pediatric hospital admissions for Mycoplasma pneumonia in Shanghai, China, 2015–2018: single-pollutant models (n = 2569)

 PM_2.5

1.002 (0.998–1.005)

1.003 (1.000–1.006)

0.998 (0.995–1.002)

0.998 (0.994–1.001)

0.998 (0.995–1.002)

1.001 (0.997–1.004)

1.000 (0.996–1.003)

1.001 (0.998–1.005)

 PM₁₀

1.001 (0.998–1.004)

1.001 (0.998–1.004)

0.999 (0.996–1.002)

0.998 (0.995–1.001)

0.998 (0.995–1.001)

1.001 (0.998–1.003)

0.998 (0.995–1.002)

1.001 (0.998–1.004)

 O₃

0.997* (0.994–1.000)

0.996* (0.993–0.999)

0.998 (0.995–1.000)

1.000 (0.997–1.002)

1.000 (0.997–1.003)

1.002 (1.000–1.005)

0.998 (0.996–1.001)

0.999 (0.997–1.002)

 SO₂

0.982 (0.962–1.002)

0.986 (0.966–1.007)

0.978 (0.959–0.998)

0.968 (0.949–0.988)

0.967* (0.947–0.988)

0.984 (0.965–1.005)

0.978 (0.958–0.997)

0.978 (0.959–0.998)

 NO₂

1.005* (1.000–1.010)

1.005* (1.000–1.010)

1.002 (0.997–1.006)

1.000 (0.995–1.005)

1.000 (0.995–1.005)

1.001 (0.996–1.006)

1.000 (0.995–1.005)

1.001 (0.996–1.005)

 CO

1.046 (0.721–1.517)

1.232 (0.850–1.786)

0.735 (0.501–1.076)

0.696 (0.481–1.008)

0.689* (0.480–0.990)

0.939 (0.651–1.355)

0.873 (0.592–1.289)

1.006 (0.685–1.477)