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Table 2 Results of linear regression analysis between annual malaria incidence (AMI) and independent variables in Hekou, Yunnan Province, China

From: Malaria from hyperendemicity to elimination in Hekou County on China–Vietnam border: an ecological study

Relationship between

R (95% CI)

R2 (95% CI)

P value

1952–2013

 AMI and NGDP

−0.6845 (−0.7978, −0.6845)

0.4685 (0.4685, 0.6366)

<0.0001

 AMI and NUR

−0.7014 (−0.8093, −0.7014)

0.4919 (0.4919, 0.6550)

<0.0001

 AMI and YNGDP

−0.6802 (−0.7949, −0.6802)

0.4627 (0.4627, 0.6319)

<0.0001

 AMI and YNUR

−0.6892 (−0.8011, −0.6892)

0.4750 (0.4750, 0.6417)

<0.0001

1958–2013

 AMI and BPA

−0.5563 (−0.7147, −0.3437)

0.3095 (0.1181, 0.5108)

<0.0001

2000–2013

 AMI and NGDP

−0.8939 (−0.9662, −0.6911)

0.7990 (0.4776, 0.9336)

<0.0001

 AMI and NUR

−0.8770 (−0.9630, −0.6479)

0.7692 (0.4198, 0.9274)

<0.0001

 AMI and YNGDP

−0.8933 (−0.9660, −0.6895)

0.7980 (0.4755, 0.9332)

<0.0001

 AMI and YNUR

−0.8919 (−0.9656, −0.6859)

0.7954 (0.4705, 0.9323)

<0.0001

 AMI and BPA

−0.8587 (−0.9544, −0.6027)

0.7374 (0.3633, 0.9109)

<0.0001

 AMI and NGDP with BPA

−0.9103 (−0.9716, −0.7345)

0.8286 (0.5394, 0.9440)

<0.0001

 AMI and NUR with BPA

−0.9055 (−0.9700, −0.7216)

0.8199 (0.5207, 0.9410)

<0.0001

  1. R correlation coefficient, R 2 coefficient of determination, 95% CI 95% confidence interval, NGDP national gross domestic product, NUR national urbanization rate, YNGDP Yunnan Provincial gross domestic product, YNUR Yunnan Provincial urbanization rate, BPA banana planting area