The prevalence of health symptoms in the participants living in
the flood-damaged homes and no flooded homes is presented in
Table 6. The prevalence of each symptoms was defined as the
percentage of respondents who experienced the symptoms at each
time point from before flooding to at twelve month after flooding.
The prevalence for nasal symptoms, headache/dizziness, diarrhea,
stress, and anxiety were over 10% in the flood-damaged homes
within one week after flooding. The prevalence for respiratory
symptomswas the highest (11.4%) at after one month. Even after six
months, the prevalence of dermal symptoms, ocular symptoms
nasal symptoms, stress, anxiety, hyperpiesia remained over 10% in
the flood-damaged homes. In addition, the prevalence of stress,
anxiety, hyperpiesia kept over 10% until after twelve month (one
year). The prevalence of exacerbation of asthma/allergy symptoms
in flooded homes were lower than that of respiratory and nasal
symptoms, however its prevalence increased from 1.4% to 3.5%
within twelve months after flooding. The prevalence of hyperpiesia
decreased slightly from 11.1% to 9.3% within one week after
flooding.