Summary Length‐weight relationships (LWRs) of 14 species from 17 populations of salangids, which cover most species in the family Salangidae, were analyzed from 12 regions in China and Japan. A total of 952 specimens were used to estimate the relationship parameters. The allometric factor b values varied from 2.56 in Salanx cuvieri to 3.53 in Neosalanx oligodontis. Additionally, the condition factor a value was calculated setting b = 3 in the remaining six species. Nine maximum‐size records and 17 LWRs of salangids are established for the first time, which will fill in some of the empty spaces on rare neotenic species in the Fishbase.

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Objective. To explore the relationship between body mass index (BMI) and waist-to-hip ratio (WHR) and clinicopathological characteristics and prognosis of uterine leiomyomata (UL). Methods. A retrospective analysis of the clinical data of 133 patients with UL admitted to our hospital from September 2018 to August 2019. According to the BMI standard, the patients were divided into the normal group (n = 32), the super-recombination group (n = 45), and the obesity group (n = 56). According to WHR, the patients were divided into the normal body group (n = 32) and the obesity body group (n = 101). The prognosis of all patients with UL at 3 months postoperatively was evaluated. The relationship between BMI patients and clinical characteristics in different groups was compared, and univariate analysis and multivariate logistic regression model were used to analyze the factors affecting the prognosis of UL patients. Results. The proportion of UL patients in the overweight/obese group was higher than that of the normal group, the proportion of the obese body group was higher than that of the normal body group, and the proportion of the good prognosis group was higher than that of the poor prognosis group ( P < 0.05 ). The difference between the overweight/obese group and the normal group and the obese body group and the normal body group was irregular vaginal bleeding, the number of tumors, and the diameter of the lesion ( P < 0.05 ), and the differences between the degenerations in the obese body group and the normal body group were statistically significant ( P < 0.05 ). Multivariate analysis showed that BMI, WHR, surgical method, and tumor location were all independent risk factors that affected the prognosis of the surgery ( P < 0.05 ). Conclusion. Elevated BMI and WHR can be accompanied by an increased risk of UL. Obesity is a risk factor for UL. Overweight/obese women are more clinically pathological than normal patients, and overweight/obese patients have worse surgical prognosis than normal patients. In order to reduce the prevalence of UL and improve the clinicopathological characteristics and prognosis of patients, clinically obese women should be instructed to use reasonable diet and exercise to control weight.