In comparison with the baseline , both the monotherapy group and the combination therapy group showed significant decreased in the IPSS ( @ + / - @ vs @ + / - @ and @ + / - @ vs @ + / - @ ) , urine storage symptom score ( @ + / - @ vs @ + / - @ and @ + / - @ vs @ + / - @ ) , OABS ( @ + / - @ vs @ + / - @ and @ + / - @ vs @ + / - @ ) , urgent micturition score ( @ + / - @ vs @ + / - @ and @ + / - @ vs @ + / - @ ) , QOL ( @ + / - @ vs @ + / - @ and @ + / - @ vs @ + / - @ ) and PVR ( -LSB- @ + / - @ -RSB- vs -LSB- @ + / - @ -RSB- ml and -LSB- @ + / - @ -RSB- vs -LSB- @ + / - @ -RSB- ml ) ( P < @ ) .