Conclusion These findings suggest that the prevention of schizophrenic deterioration should be emphasized on the control of the increasing development trend over time and to relieve negative symptoms.

• 结论预防精神分裂症衰退结局的重点在于阻止精神分裂症日趋恶化的发展趋势，治疗和缓解精神分裂症的阴性症状。