Table 6.
Individual effect sizes for studies comparing eating disorder not otherwise specified (EDNOS) to bulimia nervosa
| First Author (Year) | N | Moderator Variables | Eating Pathology | General Psychopathology | Physical Health | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| EDNOS Group Comparison | Patient Sample | Structured Interview | Mean Age | d (SE) | p | d (SE) | p | d (SE) | p | ||
| Abraham (2005) | 119 | Heterogeneous | 1 | 0 | 18.90 | −0.16 (0.24) | .52 | ||||
| Abraham (2006) | 119 | Heterogeneous | 1 | 0 | 20.85 | −0.39 (0.31) | .21 | −0.41 (0.23) | .08 | ||
| Alvarez-Rayon (2004) | 224 | Heterogeneous | 1 | 0 | 19.90 | 0.44 (0.14) | .00 | ||||
| Andersen (2001) | 141 | Heterogeneous | 1 | 0 | 0.79 (0.18) | .00 | 0.25 (0.17) | .14 | |||
| Bailey (unpublished) | 34 | Heterogeneous | 1 | 0 | 24.29 | 0.15 (0.36) | .67 | 0.15 (0.36) | .67 | ||
| Bara-Carril (2004) | 45 | Partial BN | 1 | 0 | 30.00 | 0.22 (0.37) | .57 | ||||
| Bean (2005) | 103 | Heterogeneous | 1 | 0 | 26.88 | 0.29 (0.26) | .27 | ||||
| Ben-Tovim (2001) | 125 | Heterogeneous | 1 | 1 | 23.77 | −0.34 (0.2) | .08 | ||||
| Beumont (1993) | 66 | Heterogeneous | 1 | 0 | 22.58 | 0.56 (0.26) | .03 | ||||
| Binford (2005) | 56 | Purging disorder | 1 | 0 | 16.55 | 0.56 (0.29) | .05 | 0.16 (0.31) | .60 | 0.22 (0.33) | .51 |
| Bjorck (2003) | 605 | Heterogeneous | 1 | 1 | 24.90 | 0.16 (0.08) | .06 | ||||
| Blinder (2006) | 1480 | Heterogeneous | 1 | 0 | 24.10 | 0.01 (0.17) | .95 | ||||
| Boyd (2005) | 56 | Heterogeneous | 1 | 0 | 20.39 | 0.69 (0.29) | .02 | 0.31 (0.28) | .26 | 0.18 (0.31) | .57 |
| Broberg (2001) | 119 | Heterogeneous | 1 | 0 | 21.30 | 0.45 (0.19) | .02 | ||||
| Bunnell (1992) | 54 | Heterogeneous | 1 | 0 | 15.41 | 0.73 (0.35) | .04 | ||||
| Partial BN | 1 | 0 | 15.41 | 0.77 (0.39) | .05 | ||||||
| Button (2005) | 117 | Heterogeneous | 1 | 0 | 26.30 | 0.03 (0.23) | .90 | −0.16 (0.21) | .44 | ||
| Carlat (1997) | 105 | Heterogeneous | 1 | 0 | 27.55 | 0.08 (0.2) | .70 | 0.42 (0.26) | .11 | ||
| Casasnovas (2007) | 160 | Heterogeneous | 1 | 0 | 22.63 | 0.47 (0.16) | .00 | −0.05 (0.16) | .75 | ||
| Clinton (1992) | 73 | Heterogeneous | 1 | 0 | 24.74 | 0.78 (0.33) | .02 | −0.1 (0.39) | .79 | −0.38 (0.33) | .25 |
| Clinton (1999) | 334 | Heterogeneous | 1 | 0 | 22.50 | 0.79 (0.12) | .00 | ||||
| Clinton (2005) | 433 | Heterogeneous | 1 | 0 | 24.50 | 0.31 (0.1) | .00 | 0.1 (0.1) | .31 | ||
| Corbridge (1996) | 63 | Heterogeneous | 1 | 0 | −1.11 (0.60) | .07 | 0.06 (0.66) | .93 | |||
| Crow (2002) | 236 | Heterogeneous | 0 | 1 | 31.01 | 0.62 (0.15) | .00 | 0.33 (0.17) | .05 | ||
| Partial BN | 0 | 1 | 31.01 | 0.58 (0.17) | .00 | 0.47 (0.19) | .02 | ||||
| Cumella (1999) | 115 | Heterogeneous | 1 | 0 | 16.03 | 0.29 (0.20) | .14 | ||||
| Cumella (2000) | 384 | Heterogeneous | 1 | 0 | 27.00 | 0.05 (0.11) | .65 | ||||
| Diaz (2003) | 72 | Heterogeneous | 0 | 1 | 18.02 | 0.75 (0.24) | .00 | ||||
| Durham (unpublished) | 33 | Heterogeneous | 1 | 0 | 30.16 | −0.82 (0.4) | .04 | −0.08 (0.44) | .85 | ||
| Edwin (1990) | 40 | Heterogeneous | 1 | 0 | 26.36 | 0.74 (0.38) | .05 | ||||
| Ekeroth (2003) | 111 | Heterogeneous | 1 | 1 | 15.66 | 0.79 (0.24) | .00 | ||||
| Ekeroth (2004) | 72 | Heterogeneous | 1 | 0 | 21.60 | 0.23 (0.24) | .34 | ||||
| Fairburn (2005) | 94 | Heterogeneous | 0 | 1 | 19.56 | 0.93 (0.27) | .00 | ||||
| Fairburn (2007) | 162 | Heterogeneous | 1 | 1 | 25.88 | 0.28 (0.16) | .09 | 0 (0.38) | 1.00 | ||
| Favaro (1997) | 287 | Heterogeneous | 1 | 0 | 24.39 | 0.36 (0.18) | .04 | ||||
| Fitzgibbon (2003) | 287 | Heterogeneous | 0 | 0 | 31.87 | −0.98 (0.17) | .00 | 0.78 (0.16) | .00 | ||
| Partial BN | 1 | 0 | 31.87 | −0.53 (0.14) | .00 | 0.36 (0.13) | .01 | ||||
| Fornari (1994) | 53 | Heterogeneous | 1 | 0 | 21.47 | 0.36 (0.31) | .24 | ||||
| Fullerton (1995) | 596 | Heterogeneous | 1 | 0 | 24.51 | 0.20 (0.11) | .06 | ||||
| Garfinkel (1995) | 90 | Low binge freq BN | 0 | 1 | 36.70 | 0.15 (0.31) | .64 | 0.33 (0.62) | .59 | ||
| Gerlinghoff (1998) | 78 | Heterogeneous | 1 | 0 | 23.53 | 0.34 (0.36) | .33 | 0.18 (0.36) | .62 | ||
| Ghadirian (1999) | 178 | Heterogeneous | 1 | 0 | 27.84 | 0.52 (0.25) | .04 | ||||
| Gleaves (1995) | 35 | Heterogeneous | 1 | 0 | 26.50 | 0.38 (0.41) | .36 | 0.12 (0.4) | .77 | ||
| Gleaves (1998) | 173 | Heterogeneous | 1 | 0 | 24.56 | 1.27 (0.17) | .00 | ||||
| Glorio (2000) | 138 | Heterogeneous | 1 | 0 | 18.54 | 0.68 (0.7) | .33 | ||||
| Godt (2002) | 128 | Heterogeneous | 1 | 1 | 23.39 | 0.05 (0.21) | .81 | ||||
| Godt (2008) | 407 | Heterogeneous | 1 | 1 | 23.80 | 0.1 (0.12) | .39 | ||||
| Goebel (1999) | 81 | Heterogeneous | 1 | 0 | 26.48 | 0.37 (0.38) | .33 | 0.72 (0.57) | .21 | −0.19 (0.24) | .44 |
| Griffiths (1999) | 53 | Heterogeneous | 1 | 0 | 19.18 | 0.01 (0.28) | .97 | ||||
| Grilo (2007) | 92 | Heterogeneous | 1 | 1 | 31.35 | 0.07 (0.24) | .79 | ||||
| Hasler (2004) | 59 | Heterogeneous | 1 | 1 | 27.45 | −0.65 (0.3) | .03 | −0.65 (0.3) | .03 | ||
| Joyce (1990) | 25 | Heterogeneous | 1 | 0 | 29.20 | 0.27 (0.53) | .61 | −1.36 (0.47) | .00 | −0.51 (0.61) | .41 |
| Keel (2001) | 54 | Purging disorder | 0 | 1 | 23.40 | 0.43 (0.28) | .13 | 0.12 (0.28) | .68 | ||
| Keel (2005) | 76 | Purging disorder | 0 | 0 | 25.10 | 0.42 (0.23) | .08 | 0.19 (0.35) | .58 | ||
| Keel (2007) | 57 | Purging disorder | 0 | 1 | 22.30 | 0.42 (0.29) | .15 | 0.16 (0.39) | .67 | ||
| Kovacs (2002) | 572 | Heterogeneous | 1 | 1 | −0.01 (0.13) | .96 | |||||
| Partial BN | 1 | 1 | 0.25 (0.15) | .09 | |||||||
| Krug (in press) | 78 | Partial BN | 1 | 0 | 23.80 | 0.52 (0.23) | .03 | 0.2 (0.3) | .52 | ||
| Kurth (1995) | 56 | Heterogeneous | 0 | 1 | 17.70 | 1.1 (0.44) | .01 | ||||
| Le Grange (2004) | 72 | Low binge freq BN | 1 | 1 | 16.19 | 0.19 (0.25) | .43 | 0.11 (0.24) | .64 | −0.22 (0.27) | .40 |
| Le Grange (2006) | 195 | Low binge freq BN | 0 | 1 | 25.70 | −0.07 (0.23) | .75 | ||||
| Purging disorder | 0 | 1 | 25.70 | 0.26 (0.20) | .18 | ||||||
| Partial BN | 0 | 1 | 25.70 | −0.01 (0.16) | .93 | 0.17 (0.16) | .28 | ||||
| Lee (1998) | 28 | Heterogeneous | 1 | 0 | 21.50 | 0.9 (0.44) | .04 | ||||
| Lee (2002) | 111 | Heterogeneous | 1 | 1 | 23.46 | 0.48 (0.22) | .03 | ||||
| Lee (2003) | 29 | Heterogeneous | 1 | 1 | 26.69 | 0.62 (0.38) | .10 | 0.43 (0.38) | .25 | ||
| Levine (2007) | 24 | Heterogeneous | 1 | 1 | 21.80 | 0.02 (0.43) | .96 | ||||
| Maroñon (2004) | 40 | Heterogeneous | 1 | 0 | 22.21 | 0.56 (0.36) | .12 | ||||
| Martin (2000) | 117 | Heterogeneous | 1 | 1 | 24.40 | 0.79 (0.23) | .00 | −0.09 (0.22) | .67 | ||
| Partial BN | 1 | 1 | 24.40 | 0.21 (0.27) | .43 | −0.29 (0.27) | .27 | ||||
| McDermott (2006) | 60 | Heterogeneous | 1 | 1 | 14.50 | −0.01 (0.31) | .99 | ||||
| Milos (2003) | 171 | Heterogeneous | 0 | 1 | 27.38 | 0.3 (0.22) | .16 | ||||
| Milos (2004) | 201 | Heterogeneous | 0 | 1 | 23.97 | 0.1 (0.24) | .68 | ||||
| Mizes (2000) | 154 | Heterogeneous | 1 | 0 | 25.90 | 0.19 (0.17) | .25 | ||||
| Moor (2004) | 42 | Heterogeneous | 1 | 0 | 21.30 | 0.07 (0.31) | .82 | −0.09 (0.31) | .76 | ||
| Moreno (1993) | 47 | Partial BN | 0 | 0 | 0.82 (0.31) | .01 | |||||
| Nevonen (2001) | 168 | Heterogeneous | 1 | 1 | 20.90 | 0.62 (0.16) | .00 | ||||
| Nollett (2005) | 157 | Heterogeneous | 1 | 1 | 27.00 | 0.28 (0.18) | .11 | 0.18 (0.17) | .30 | ||
| Noma (2006) | 43 | Heterogeneous | 1 | 0 | 25.74 | 2.47 (0.76) | .00 | ||||
| Low binge freq BN | 1 | 0 | 25.74 | 0.61 (0.94) | .52 | ||||||
| Orbitello (2006) | 84 | Heterogeneous | 0 | 1 | 42.00 | 1.01 (0.35) | .00 | ||||
| Panagiotopoulos (2000) | 33 | Heterogeneous | 1 | 0 | 14.88 | −0.21 (0.66) | .75 | 0.02 (0.41) | .96 | ||
| Probst (1995) | 163 | Heterogeneous | 1 | 0 | 24.00 | 0.42 (0.18) | .02 | ||||
| Resch (2004) | 14 | Partial BN | 0 | 0 | 25.46 | 0.07 (0.88) | .94 | ||||
| Ricca (2001) | 126 | Heterogeneous | 1 | 1 | 23.24 | 0.93 (0.26) | .00 | 0.6 (0.25) | .02 | ||
| Partial BN | 1 | 1 | 23.24 | 0.33 (0.2) | .10 | 0.19 (0.2) | .34 | ||||
| Ro (2005) | 62 | Heterogeneous | 1 | 1 | 29.70 | 0 (0.27) | 1.00 | ||||
| Salvemini (2000) | 223 | Heterogeneous | 1 | 1 | 25.12 | 0.4 (0.14) | .01 | 0.05 (0.14) | .71 | ||
| Schaefer (1998) | 65 | Heterogeneous | 1 | 0 | 25.60 | 0.16 (0.28) | .59 | ||||
| Schork (1994) | 36 | Heterogeneous | 1 | 0 | 0.49 (0.35) | .16 | |||||
| Shafran (2004) | 42 | Heterogeneous | 1 | 0 | 29.09 | 0.45 (0.35) | .20 | 0.21 (0.35) | .56 | ||
| Sherwood (2000) | 52 | Partial BN | 0 | 1 | 19.28 | 0.72 (0.29) | .02 | ||||
| Solenberger (2001) | 65 | Heterogeneous | 1 | 0 | 20.60 | −0.02 (0.25) | .93 | ||||
| Spindler (2007) | 193 | Heterogeneous | 0 | 1 | 28.78 | 0.36 (0.18) | .04 | ||||
| Stice (1998) | 160 | Partial BN | 0 | 1 | 15.00 | 0.63 (0.25) | .01 | 0.47 (0.25) | .06 | ||
| Thurfjell (2003) | 114 | Heterogeneous | 1 | 1 | 15.51 | 0.61 (0.23) | .01 | ||||
| Tobin (1997) | 270 | Partial BN | 1 | 0 | 25.71 | 0.17 (0.2) | .40 | −0.04 (0.21) | .83 | ||
| Troop (2000) | 40 | Heterogeneous | 1 | 0 | 29.34 | 0.51 (0.42) | .22 | ||||
| Turner (2004) | 179 | Heterogeneous | 1 | 1 | 27.03 | 0.9 (0.18) | .00 | ||||
| Vandereycken (1992) | 108 | Heterogeneous | 1 | 0 | 24.28 | 0.39 (0.29) | .18 | 0.27 (0.24) | .26 | ||
| Vanderlinden (1993) | 40 | Heterogeneous | 1 | 0 | 24.30 | 0 (0.35) | 1.00 | ||||
| Vaz (1999) | 61 | Partial BN | 1 | 1 | −0.07 (0.27) | .80 | |||||
| Weltzin (unpublished) | 46 | Heterogeneous | 1 | 0 | 25.09 | 1.16 (0.33) | .00 | ||||
| Wildes (unpublished) | 20 | Low binge freq BN | 0 | 1 | 26.30 | 0.31 (0.6) | .61 | 0.17 (0.88) | .85 | ||
| Wilks (unpublished) | 20 | Heterogeneous | 1 | 0 | 23.80 | 0.12 (0.52) | .82 | 0.03 (0.52) | .96 | ||
| Williamson (1992) | 49 | Heterogeneous | 1 | 1 | 0.56 (0.32) | .08 | |||||
| Williamson (2002) | 112 | Heterogeneous | 1 | 1 | −0.24 (0.19) | .22 | |||||
| Wunderlich (2004) | 56 | Heterogeneous | 1 | 0 | 21.00 | 2.5 (0.38) | .00 | ||||
Note. Blank cells in the table indicate that data for those variables were missing from the original research reports. Under “Patient Sample, 1 = psychiatric patients; 0 = non-patients only, or both patients and non-patients. Under “Structured Interview,” 1 = eating disorder diagnoses established via structured interview; 0 = investigators did not explicitly state that diagnoses were established via clinical interview, or investigators stated that diagnoses were established via unstructured interview or self-report questionnaire.