Negative emotional eating patterns in general Chinese adults: A replication and expansion study examining group differences in eating disorder symptomatology, psychosocial impairment, and emotion regulation difficulties.

Previous research identified four patterns of negative emotional eating in American and Chinese university students and proposed future directions (e.g., exploring potential differences in emotion regulation across patterns and replicating the patterns in a general, non-student population). Furthermore, prior research has not explored group differences in muscularity-oriented eating disorder symptomatology or psychosocial impairment. Therefore, the present study addressed these gaps in a sample of general Chinese adults, further testing group differences in typical and muscularity-oriented eating disorder symptomatology, psychosocial impairment, and emotion regulation difficulties across patterns of negative emotional eating. A total of 600 Chinese adults were recruited. Latent class analysis (LCA) was used. Results replicated the four patterns of negative emotional eating in previous research, including non-emotional eating (non-EE), emotional over- and under-eating (EOE-EUE), emotional over-eating (EOE), and emotional under-eating (EUE). Significant class differences were identified in eating disorder symptomatology, psychosocial impairment, and emotion regulation difficulties. Specifically, individuals with EOE and EOE-EUE patterns exhibited higher eating disorder symptomatology, higher psychosocial impairment, and more emotion regulation difficulties than those with non-EE and EUE patterns. Therefore, these two classes (i.e., EOE and EOE-EUE), especially the poorly researched EOE-EUE group, should be further examined to elucidate research and clinical applications. Furthermore, findings underscore the role of emotion regulation difficulties in further describing the differences across these negative emotional eating patterns, which can be considered in future interventions for reducing negative emotional eating.