| Mild | Moderate | Severe |  |
---|---|---|---|---|
 | No. (%) | No. (%) | No. (%) |  |
 | 74 (30.3) | 128 (52.5) | 42 (17.2) | Pvalue |
Healthcare visit (frequency/person/year)* | Â | Â | Â | Â |
 Total | 2.014 ± 0.323 | 3.675 ± 0.473 | 5.764 ± 0.783 | <0.001 |
  Outpatient clinic | 1.895 ± 0.325 | 3.594 ± 0.472 | 5.516 ± 0.732 | <0.001 |
  Inpatient clinic | 0.118 ± 0.051 | 0.082 ± 0.021 | 0.248 ± 0.114 | 0.091 |
  ICU | 0.025 ± 0.020 | 0.005 ± 0.004 | 0.039 ± 0.024 | 0.219 |
  ED | 0.009 ± 0.007 | 0.023 ± 0.010 | 0.071 ± 0.049 | 0.124 |
PFT (frequency/person/year)* | 0.109 ± 0.032 | 0.168 ± 0.025 | 0.263 ± 0.059 | 0.031 |
Medications (frequency/person/year)* | Â | Â | Â | Â |
 SABA | 0.050 ± 0.026 | 0.287 ± 0.135 | 0.957 ± 0.290 | 0.003 |
 SAMA | 0.036 ± 0.023 | 0.036 ± 0.015 | 0.200 ± 0.104 | 0.012 |
 LAMA | 0.178 ± 0.163 | 0.213 ± 0.080 | 1.940 ± 0.492 | <0.001 |
 LABA+ICS | 0.054 ± 0.046 | 0.408 ± 0.137 | 1.280 ± 0.395 | <0.001 |
 ICS | 0.050 ± 0.045 | 0.032 ± 0.014 | 0.194 ± 0.107 | 0.051 |
 Oral theophylline | 0.484 ± 0.121 | 1.156 ± 0.254 | 3.162 ± 0.571 | <0.001 |
 Oral corticosteroid | 0.143 ± 0.081 | 0.390 ± 0.116 | 1.422 ± 0.451 | <0.001 |