RESUMO
Objective To investigate the complications related factors in infants with mycoplasma pneumonia pulmonary(MPP). Methods According to the condition of pulmonary complications, 105 cases of infants MPP were divided into pulmonary complication group and no pulmonary complication group with 72 cases and 33 cases respectively,and the general related factors and disease related factors of two groups were analyzed. Results The incidence rate of pulmonary complication was 68.6% (72/105) in infants MPP, and the main involved extra-pulmonary systems were digestive system (54.2%), cardiovascular system (44.4%) and blood system(33.3%). Among 20 factors associated with pulmonary complications of MPP, age, feeding method (including artificial, mixing and milk three classification), season of onset, fever days, the titer of mycoplasma pneumonia (MP)-IgM, C-reaction protein, erythrocyte sedimentation rate and the initial time of using macrolides had significant differences between two groups (P<0.05). Multivariate Logistic regression analysis showed that age≥2 years, fever days≥7 d, titer of MP-IgM≥1∶160, increased C-reaction protein levels and accelerated erythrocyte sedimentation rate were the risk factors for pulmonary complications of infants MPP, while breastfeeding and using macrolides within 7 d were the protective factors. Conclusions The incidence rate of pulmonary complications in infants MPP is high, which can affect multiple systems. For children with older age, longer thermal process, higher titer of MP-IgM, and increased C-reaction protein , accelerated erythrocyte sedimentation rate and more past medical history, more attention should be paid for their higher pulmonary complications incidence.