Table 5 multiple regression analysis on the logarithm of medical resource utilization costs

Intercept

4.663

< 0.0001

4.537 to 4.790

Age

0.006

< 0.0001

0.004 to 0.007

Male(vs. female)

-0.032

0.214

-0.082 to 0.018

Region(vs. west)

 East

0.710

< 0.0001

0.606 to 0.814

 Middle

1.637

< 0.0001

0.467 to 0.752

Insurance (vs. Urban Resident Basic Medical Insurance)

Urban Employee Basic Medical Insurance

-0.062

0.120

-0.141 to 0.016

Asthma severity(vs. mild)

 Moderate

0.854

< 0.0001

0.799 to 0.910

 Severe

1.572

< 0.0001

1.473 to 1.672

Control status(vs. well controlled)

1.138

< 0.0001

1.078 to 1.197

Complications(vs.no)

0.610

< 0.0001

0.467 to 0.752

Adjusted R²

0.400