Study on epidemic characteristics, temporal and spatial variations of gonorrhea in one city in China from 2005 to 2016

Objective To explore the epidemic characteristics, along with the temporal and spatial variations of gonorrhea in one city in China from 2005 to 2016 so as to provide scientific basis for the optimal allocation of health resources and prevention of gonorrhea. Methods All data used was from the information reporting management system of the Chinese Center for Disease Control and Prevention. The data used included the incidence and three distribution features that were analyzed for the epidemic characteristics of gonorrhea, the dynamic sequence and estimating average percent change that were analyzed for temporal variations, along with the matic map and the hot spot map in GIS that were analyzed for spatial variation. Results There were 10 842 patients who contracted gonorrhea in one city in China from 2005 to 2016, while the average incidence rate was 13.80/100 000. In patients, the ratio of male to female was 2.12:1, 63.17% of them aged from 20 to 39 years, the major occupations of them were farmers (31.51%), unemployed (13.00%), business or service people(12.04%). The average development speed of gonorrhea was 97.86%, the average growth rate was -2.14%, and the annual estimated differentiation was -5.16%, the change was stable. The relatively high incidence of gonorrhea was observed in Yuelu District (22.65/100 000), Rainflower District (20.31/100 000) and Furong District (18.24/100 000), Ningxiang (24.33%), Liuyang (15.57%), Yuelu (14.57%) and Yuelu districts(12.99%) occupied a higher constituent ratio of patients, Ningxiang and Liuyang showed high incidence of gonorrhea from 2005 to 2016. Conclusion The average incidence of gonorrhea in the city was slightly higher than the average incidence in China, but showed a steady negative growth from the year 2005 to 2016, we should pay attention to the key areas (Ningxiang, Liuyang, Yuhua and Yuelu District), the key population(from 20 to 39 years old; male; farmer, housekeeping, business or service people), to create a social environment for the prevention of sexually transmitted diseases together.