The double-port group showed a significantly higher score on the Visual Analogue Scale than the single-port group ( @ + / - @ vs @ + / - @ , t = -@ , P < @ ) , but there were no significant differences between the two groups in the operation time ( -LSB- @ + / - @ -RSB- vs -LSB- @ + / - @ -RSB- min , t = @ , P = @ ) , postoperative hospital stay ( -LSB- @ + / - @ -RSB- vs -LSB- @ + / - @ -RSB- d , t = -@ , P = @ ) , complications ( @ vs @ ) and scores on the satisfaction with abdominal cosmetic outcomes ( @ + / - @ vs @ + / - @ , t = @ , P = @ ) .