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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