At @ weeks , the percentage of patients who achieved PASI @ and PASI @ was significantly greater for both regimens , bathing in geothermal seawater three times a week ( @ % and @ % , respectively ) and intensive treatment with geothermal seawater ( @ % and @ % , respectively ) than for NB-UVB monotherapy ( @ % and @ % , respectively ) ( P < @ in all comparisons ) .