An Angiotensin I Converting Enzyme Polymorphism Is Associated with Clinical Phenotype When Using Differentiation-Syndrome to Categorize Korean Bronchial Asthma Patients

Table 2

Clinical characteristics of the 110 Korean asthma patients and distribution of pulmonary functions in DSGA and ESGA.

	Asthma patients (𝑛=110)	DSGA (𝑛=60)	ESGA (𝑛=50)	P-value
Age (years)	49.9±17.1	50.0±16.2	49.9±18.3	NS^a
Sex (male/female)	49/61	31/29	18/32	NS^b
Pulmonary functions
FVC predicted (%)	87.6±24.2	86.2±17.7	87.6±20.2	NS^a
FEV1 predicted (%)	77.5±24.2	76.0±23.0	78.3±26.5	NS^a
PEF predicted (%)	78.3±28.8	73.7±25.4	79.1±30.6	NS^a

Values are mean ± SD; DSGA, Deficiency Syndrome Group of Asthma; ESGA, Excess Syndrome Group of Asthma; FVC, forced vital capacity; FEV₁, forced expiratory volume at 1 s; PEF, peak expiratory flow rate; NS, no significance.
^aStudent's t-test.
^bChi-squared test.