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Improvement in SF-36 domains at 6 months compared with baseline. All p < 0.0001 versus baseline except for GH (p = 0.0063 for 6 months versus baseline and p = 0.0031 for 12 months versus baseline). Solid line = baseline; dotted line = month 6; dashed line = month 12. Abbreviations: SF-36, Short Form-36; SE, standard error; BP, bodily pain; GH, general health; MH, mental health; PF, physical function; RE, role emotional; RP, role physical; SF, social function; VT, vitality.
