Journal of Clinical Pediatrics ›› 2022, Vol. 40 ›› Issue (11): 824-830.doi: 10.12372/jcp.2022.21e1075

• Digestive System Disease • Previous Articles     Next Articles

Comparison of clinical features of food protein-induced proctocolitis and Salmonella enteritis

CHEN Fan1, JIAN Cui2, SHU Sainan1()   

  1. 1. Department of Pediatrics, Tongji Hospital Affiliated Tongji Medical College, Huazhong University of Science and Technology, Huazhong University of Science and Technology. Wuhan 430030, Hubei, China
    2. Department of Laboratory Medicine, Tongji Hospital Affiliated Tongji Medical College, Huazhong University of Science and Technology. Wuhan 430030, Hubei, China
  • Received:2021-07-20 Online:2022-11-15 Published:2022-11-10
  • Contact: SHU Sainan E-mail:shusainan@163.com

Abstract:

Objective To compare the clinical characteristics of food protein-induced proctocolitis (FPIP) and Salmonella enteritis, and to provide basis for early differential diagnosis. Methods The clinical data of infants with FPIP and Salmonella enteritis in the pediatric ward from January 2013 to December 2019 were retrospectively analyzed. Results There were 191 patients in FPIP group, of 106 males and 85 females, with a median age of 3.8 (1.5-7.4) months. There were 120 cases in the salmonella enteritis group, of 75 males and 45 females, with a median age of 14.7 (9.9-20.0) months. Compared with Salmonella enteritis group, the FPIP group had a younger age of onset, a longer duration of illness, and a higher proportion of eczema history, with statistically significant differences (all P<0.01). The age distribution of onset was significantly different between the two groups (P<0.05). The onset age of FPIP group was <6 months, while that of Salmonella enteritis group was 6-24 months. FPIP occurred throughout the year, while Salmonella enteritis mainly occurred in summer and autumn (June to October). Compared with Salmonella enteritis group, the incidence of gross blood stool, mucinous stool and mucinous blood stool was higher in FPIP group, while the incidence of vomiting and fever was lower; the differences were statistically significant (all P<0.05). Compared with Salmonella enterocolitis group, the proportion of C-reactive protein >10 mg·L-1 and anemia was lower in FPIP group, and the eosinophil count and platelet count were higher, neutrophil count and 25 hydroxyvitamin D level were lower, and the positive rate of food allergen sIgE was lower in FPIP group; the differences were statistically significant (all P<0.05). The utilization rate of antibiotics in Salmonella enteritis group was higher than that in FPIP group, and the difference was statistically significant (P<0.01). Conclusions FPIP is more common in children less than 6 months of age without fever and with bloody stools, which may be accompanied by eczema and eosinophilia. Salmonella enteritis is more common in children aged 6-24 months, usually occurring in summer and autumn, often accompanied by fever and increased c-reactive protein.

Key words: food protein-induced proctocolitis, Salmonella enteritis, infant