Association between economic development level and tuberculosis registered incidence in Shandong, China

BMC Public Health

Table 2 The Regression Results with Per Capita Savings as The Threshold Variable

Variable	RC	SD	P > \|t\|
Per capita GDP	0.0003178	0.000067	0.000
Urban per capita disposable income	0.0002412	0.0001623	0.139
The population density	0.125963	0.0375508	0.001
Per capita medical expenditure	−0.0253607	0.0059952	0.000
Urban engel coefficient	0.2440182	0.0862448	0.005
Rural per capita income 1	−0.0015682	0.0005788	0.007
Rural per capita income 2	−0.0028132	0.0005677	0.000
Rural per capita income 3	−0.0022253	0.0005483	0.000

Note. TB Tuberculosis, RC Regression coefficient, SD Standard deviation, GDP Gross domestic product
Rural per capita income 1, 2 and 3 means that rural per capita income has different effects on incidence under three different thresholds, so it is divided into three levels

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