Abstract:

Objective To understand the surveillance of active pulmonary tuberculosis among entry-exit people in Xi’an port, and to provide evidence for prevention and control of tuberculosis at ports. Methods A total of 63368 people were selected in the health examination at the Xi’an port from January 2015 to December 2017. The chest X-ray findings, PPD and laboratory sputum smears combined with GeneXpert MTB/RIF test results were used to diagnose tuberculosis in the screening of entry-exit people health examination. Analyzing the detection of tuberculosis under the characteristics of different time, personnel flow, gender, age, occupation or personnel category in Xi’an port for 3 years. Results A total of 106 active pulmonary tuberculosis patients were detected in 3 years, the detection rate was 167.28/100000 (106/63368). Fifty-six cases were positive for sputum smear combined with GeneXpert MTB/RIF, and the positive rate was 52.83% (56/106). The detection rate of male active pulmonary tuberculosis patients (191.21/100000 (92/48115))was higher than that of women (91.79/100000 (14/15253)), and the difference was statistically significant (χ ²=6.86,P<0.05); The detection rate in the 30- year-old group was the highest (227.06/100000 (46/20259)), and the lowest in the 20- years old group (68.55/100000 (4/5835)), the overall difference in all age groups was statistically significant (χ ²=10.11,P<0.05); The detection rate of exit personnels (184.79/100000 (95/51411)) was higher than that who were entry (92.00/100000 (11/11957)), and the difference was statistically significant (χ ²=5.00,P<0.05); In different occupations or personnel categories, the highest detection rate was among laborers (202.81/100000 (89/43883)), and the lowest was among students (75.30/100000 (7/9296)), the overall difference was statistically significant (Fisher exact probability test, P<0.05). Conclusion The condition of active pulmonary tuberculosis among entry-exit people in Xi’an port is relatively serious. It is necessary to take measures to strengthen the prevention and control of tuberculosis at the port, and the laborers around 30 years old are the key people under surveillance.

Key words: Tuberculosis,pulmonary, Population surveillance, Communicable disease control, Entry-exit people