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Table 7 Group means and differences of participants who did (“NSSI”) and did not show NSSI (“noNSSI”) regarding the imagery characteristics, affect, entrapment belief and attitude towards NSSI at baseline

From: Mental images, entrapment and affect in young adults meeting criteria of nonsuicidal self-injury disorder (NSSID) – a daily diary study

 M (SD)Mean difference
NSSInoNSSI
Compellingness6.60 (1.58)7.11 (2.03)−0.51
Vividness6.90 (2.28)7.78 (1.79)−0.88
Controllability2.50 (1.35)2.22 (1.09)0.28
Nowness3.20 (2.20)5.11 (3.18)−1.91
Distress7.00 (1.89)6.78 (1.64).22
Comfort3.30 (3.29)2.22 (1.72)1.08
Neg.affect after image1.95 (.77)2.37 (.73)−0.42
Pos.affect after image.57 (.43).53 (.41)0.04
Entrapment2.19 (.79)1.82 (0.66)0.37
Attitude towards NSSI5.40 (3.41)4.78 (3.53).62