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Table 4 Calculation of results of global Moran’s I (p values)

From: Urban–rural disparity in the relationship between ambient air pollution and preterm birth

Variable

PM2.5 concentration

Preterm rate

Bivariate

Hubei

0.970 (0.00)*

0.861 (0.00)*

0.106 (0.00)*

East

0.968 (0.00)*

0.940 (0.00)*

0.697 (0.00)*

Middle

0.872 (0.00)*

0.856 (0.00)*

− 0.004 (0.44)

West

0.927 (0.00)*

0.731 (0.00)*

0.049 (0.02)*

  1. Significant level: “*” p ≤ 0.05