Relative to usual-care participants , telephone counseling participants achieved modest , but significant , improvements in weight loss ( relative rate -LSB- RR -RSB- -@ % of baseline body weight -LSB- @ % CI -@ to -@ % of baseline body weight -RSB- ) , MVPA ( RR @ -LSB- @ % CI @-@ @ -RSB- ) , diet quality ( @ -LSB- @ % CI @-@ @ -RSB- ) , and waist circumference ( -@ cm -LSB- @ % CI -@ to -@ cm -RSB- ) , but not in HbA@c level ( RR @ -LSB- @ % CI @-@ @ -RSB- ) , or other cardio-metabolic markers .