body weight
When subjects were classified by body       weight, the mean serum TNFalpha concentration was significantly (P<.001) elevated       in normal-weight women with PCOS compared with normal-weight controls.
When subjects were classified by  @SUBJECT$ , the mean serum TNFalpha concentration was significantly (P<.001) elevated        @PREDICAT$  normal-weight  @OBJECT$  with PCOS compared with normal-weight controls.