FUO is a difficult condition to define and there are many synonyms of FUO. And it is also difficult to compare these experiences or clinical studies because of variation in area and time for the criteria of the selection of cases. So we authors performed this study for proposing basal data of FUO criteria.
This preliminary study has been made of 168 patients hospitalized to Yeong Dong Hosp. with persistent high fever more than 2 weeks during a period of 1 year (1983. 9-1984. 8).
Following results were obtained.
1. Among the total 168 cases, diagnosis was made in 155 cases (92.2%). Thirteen cases (7.8%) were discharged any confirmative diagnosis in spite of study for the varying methods.
2. Sex ratio is 1:1 Most common age is 3rd and 4th decade and 74 of 168 cases (44%).
3. Infection was the single most common cause of the fever cases (138 cases), the next neoplasm (11 cases) and hematologic cases (6 cases).
4. The most frequent site of the causative disease was intraabdominal (61 cases) and the next intrathoracic (53 cases) retroperitoneal (20 cases) and systemic (12 cases) in order.
5. An analysis was made in cases of Salmenellosis (47 cases). The presumptive diagneses prior were salmonellosis (35 cases). FUO (5 cases), pneumonia (4 cases), pyelitis (2 cases) and cholesptiris (1 case).
6. 13 cases were discharged without any confirmative diagnosis. Average length of fever is 31.9 days. Average hospital days are 18.8.
7. Total cases performed laboratory studies during hospitalization and their positive findings were observed. Blood culture was positive in 38 cases of 144, urine culture 32 cases of 113 and stool culture 15 cases of 101. Widal test was positive in 21 cases of 105 etc.

In order to analyze acute drug intoxication patients, total 118 cases of ER patient’s charts were reviewed from August, 1983 to July, 1984 at Kwang Hwa Hospital in a rural area of Korea. The following results were obtained.
1. Total number of patients was 118, which was 2.61% of total patients of ER during one year. Among them, males were 61% females were 39%.
2. The most common age group was 20-29 (29.7%). Considering age and sex distribution together, 30-39 year-old male was the most common group.
3. By seasonal distribution, acute drug intoxications were most common in summer especially August.
4. The most frequent drug of intoxication was organic phosphorus (26.3%), which was followed by unknown (16.1%) and inhalating drug (15.3%) in order of frequency.
5. Among the organic phosphorus (31 cases), EPN was most common (12 cases).
6. As to the therapeutic results of acute drug intoxication, we got clinical recovery in 73 cases (61.9%), 16 cases expired (13.6%), 5 cases transferred (4.2%) and 24 cases (20.3%) self-discharged. In the case of drug inhalation, all patients were recovered.