[Epidemiological investigation on respiratory diseases in 1 300 children, in Jinan, Shandong].

Objective: To analyze the characteristics of respiratory diseases and to provide scientific basis for developing relevant control measures.

Methods: 1 300 children with respiratory diseases were treated in hospitals, from Jan. 2013 to May 2014, in the city of Jinan. Characteristics of respiratory diseases were analyzed.

Results: The distribution of respiratory diseases in children appeared as: 373 cases of pneumonia (28.7%), 3 cases of pulmonary tuberculosis (0.2%), 467 cases of acute bronchitis (35.9%), 102 cases of asthma (7.8%), and 355 cases of upper respiratory tract infection (27.3%). The upper respiratory tract infection contained 168 cases of tonsillitis (12.9%), 91 cases of pharyngitis (7.0%), 52 cases of laryngitis(4.0%)and 44 cases of iaryngopharyngitis (3.4%). The age distribution of cases with children respiratory diseases appeared as:71 cases <1 years old (5.5%), 385 cases as 1-2 years old (29.6%), 534 cases as 3-6 years old (41.1%), 258 cases as 7-12 years old (19.8%)and 52 cases as >13 years old (4.0%). The seasonal distribution of children respiratory diseases appeared as:364 cases in Spring (28.0% ), 163 cases in summer (12.5%), 315 cases in autumn (24.2%)and 458 cases in winter (35.2%). Regional distribution of children respiratory diseases appeared as:516 cases in urban area (39.7%), 225 cases in suburb (17.3%), 376 cases in townships (28.9%)and 183 in villages (14.1%). 725 strains were isolated and identified that containing 349 strains(48.1%) of Mycoplasma pneumoniae, 136 strains (18.8%) of Haemophilus influenza, 103 strains (14.2% ) of Streptococcus pneumoniae, 82 strains (11.3% ) of Klebsiella pneumoniae, 38 strains (5.2%) of Acinetobacter baumannii, 35 strains(4.8%) of Enterobacter cloacae, 22 strains (3.0%) of Streptococcus pyogenes, 17 strains (2.3%) of Alcaligenes, 16 strains (2.2% of Candida albicans)and 9 strains (1.2%) of Flavobacterium indologenes. 1 288 cases (99.1%) were cured.

Conclusion: The common respiratory diseases would include bronchiolitis, pneumonia and upper respiratory tract infections in children, mostly attacking 3-6 year-olds at preschool stage, with spring, winter, urban and township as the prevalent seasons and areas.