Table 3.
Base rates and diagnostic efficiency indices for DSM-IV behavioral criteria for binge eating analyzed separately by gender in BED+BN (N=247).
| BR | Sens | Spec | PPP | NPP | TPV | Kappa | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Variable Criterion1 | M | F | M | F | M | F | M | F | M | F | M | F | M | F |
| Eating much more rapidly than usual | .32 | .26 | .60 | .51 | .78 | .84 | .49 | .54 | .85 | .82 | .74 | .75 | .35 | .35 |
| Eating until uncomfortably full | .31 | .29 | .63 | .64 | .80 | .84 | .53 | .60 | .86 | .86 | .76 | .79 | .41 | .47 |
| Eating large amounts when not physically hungry | .21 | .27 | .47 | .69 | .87 | .88 | .56 | .68 | .83 | .89 | .77 | .83 | .36 | .57 |
| Eating alone because embarrassed | .15 | .15 | .40 | .46 | .94 | .96 | .71 | .82 | .82 | .83 | .80 | .83 | .40 | .49 |
| Feeling disgusted, depressed, or guilty afterward | .26 | .39 | .80 | .85 | .93 | .77 | .80 | .58 | .93 | .93 | .90 | .79 | .73 | .54 |
| M | .25 | .27 | .58 | .63 | .86 | .86 | .62 | .64 | .86 | .87 | .79 | .80 | .45 | .48 |
| SD | .07 | .09 | .15 | .15 | .07 | .07 | .13 | .11 | .04 | .05 | .06 | .03 | .16 | .08 |
| F (1, 8) | 0.20 | 0.26 | 0.02 | 0.11 | 0.08 | 0.02 | 0.95 | |||||||
| p | .67 | .62 | .90 | .74 | .78 | .90 | .33 | |||||||
Note. BN and BED classification was determined by binge eating and/or purging at a frequency of once per week or more for the previous 28 days.
Note:
1
Base rate of binge eating (combined binge eating disorder (BED) and bulimia nervosa (BN)): .25 for men (n=117) and .27 for women (n=796). Sens = sensivity; spec = specificity; PPP = positive predictive power; NPP = negative predictive power; TPV = total predictive value. All kappa coefficient values are significant at p<.001.