Table 3.

Rate of patients with high PeCDF level in each population with three symptoms

	Symptom 1	Symptom 2	Symptom 3	Proportion of patients with the symptoms	Proportion of patients with high PeCDF (> 50 pg/g lipids)
1	uric acid (high)	Sex <female>	History of acneform eruptions <present>	0.0755	0.8889
2	History of Yusho in and after 1968 <present>	cholesterol (high)	Subjective symptoms, etc. <present>	0.0692	0.8485
3	uric acid (high)	1-hour erythrocyte sedimentation rate (elevated)	History of acneform eruptions <present>	0.0545	0.8462
4	uric acid (high)	1-hour erythrocyte sedimentation rate (elevated)	Sex <female>	0.0650	0.8387
5	Subjective symptoms, etc. <present>	Sex <female>	History of pigmentation <present>	0.0755	0.8333
6	uric acid (high)	Sex <female>	History of pigmentation <present>	0.0629	0.8333
7	cholesterol (high)	Heaviness of head/headache <present>	Subjective symptoms, etc. <present>	0.0503	0.8333
8	History of Yusho in and after 1968 <present>	Subjective symptoms, etc. <present>	Second quartile age	0.0503	0.8333
9	History of Yusho in and after 1968 <present>	uric acid (high)	1-hour erythrocyte sedimentation rate (elevated)	0.0713	0.8235
10	1-hour erythrocyte sedimentation rate (elevated)	Subjective symptoms, etc. <present>	Sex <female>	0.0713	0.8235