Carbon Monoxide Headquarters


Chronic CO Poisoning:




Komatsu Occupational Study (cont.):

Table 3. Subjective Symptoms of the Workers in the Study. For the constituents of each group see Page 1.

Symptom
Group A1
Group A2
Group B
Group C
Number Examined = 94 78 446 115
Percent Percent Percent Percent
HEADACHE & DIZZINESS
headache always while working
 6.1 25.7 1.1 0.9
headache sometimes
 31.9 46.2 9.0 20.9
headache always
 1.1 14.1 1.8 --
headache in the morning
 13.8 24.1 1.8 --
feel heavy in head while working
 16.0 33.3 1.3 0.9
feel heavy in the head always
 10.6 23.1 0.7 --
dizziness
 23.4 35.9 4.9 --
HEARING COMPLAINTS
hearing impairment at work
 11.7 12.8 2.0 0.9
hearing impairment sometimes
 14.9 16.7 2.7 3.9
hearing impairment always
 4.3 3.8 1.1 --
tinnitus
 19.2 28.2 3.1 9.6
VISUAL COMPLAINTS
visual disorder while working
 9.6 14.1 2.5 2.6
visual disorder sometimes
 10.6 9.0 1.8 1.3
CARDIORESPIRATORY COMPLAINTS
chest pain
 8.5 14.1 1.6 1.7
feel as if chest were compressed
 16.0 26.9 1.6 --
palpitations
 8.5 26.9 0.4 1.7
shortness of breath
 17.0 26.9 3.8 1.7
nasal obstruction sometimes
 26.6 25.6 9.9 6.1
nasal obstruction always
 6.4 7.7 4.9 0.9
sensitive to colds
 40.4 39.7 18.6 20.0
GASTROINTESTINAL COMPLAINTS
nausea sometimes
 8.5 19.2 3.8 1.7
nausea sometimes, but always more at work
 5.3 11.5 0.4 0.9
loss of appetite
 22.3 28.2 4.5 6.1
GENITAL COMPLAINTS
lacking in libido
 24.5 25.6 2.5 2.6
NEUROMUSCULAR COMPLAINTS
tautness of shoulders sometimes
 31.9 29.5 22.7 29.6
tautness of shoulders every day after work
 7.4 7.7 2.7 0.9
lassitude
 24.5 37.2 2.2 4.3
slow in movement
 13.8 21.8 1.8 4.3
easy fatiguability of legs
 44.7 61.5 10.5 9.6
easy fatiguability of body
 44.7 57.7 9.7 12.2
paresthesia of hands
 4.3 11.5 2.7 0.9
paresthesia of feet
 6.4 12.8 3.6 --
coldness of hands
 4.3 6.4 3.8 5.2
coldness of feet
 9.6 9.0 5.8 10.4
tremor in hands while at work
 1.1 5.1 1.6 --
tremor in hands sometimes
 6.4 11.5 2.7 3.5
unsteadiness of loin
 5.3 9.0 2.0 0.9
impeded articulation always
 2.1 3.8 0.4 --
impeded articulation sometimes
 8.5 9.0 5.4 5.2
PSYCHICAL COMPLAINTS
sleeplessness
 10.6 21.8 8.1 5.2
nightmares
 14.9 19.2 0.9 2.6
forgetfulness sometimes
 46.8 65.4 33.9 27.8
forgetfulness always
 6.4 9.0 2.0 1.7
weak impressibility
 30.8 44.9 2.7 6.1
lacking in patience
 10.6 14.1 1.6 7.8
apraxia
 18.1 23.1 3.4 4.3
depression
 10.6 18.0 0.9 2.6
OTHERS 1.3 5.1 0.9 --


From: Komatsu, F., Honda, S., Murayama, N., Hashimoto, I., and Inoue, T. (1958) The effect of prolonged exposure to carbon monoxide on human health. Med. J. Shinshu Univ., 3 (3), 165-177.



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...... last changed 02/10/02


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