Table 3 Risk of neurological conditions among active duty DWH-CG Cohort responders reporting ever vs. never exposure to crude oil inhalation, 2010-2015
Oil inhalation ever (N=1068) | Oil inhalation never (N=2424) | ||||
|---|---|---|---|---|---|
Condition (ICD-9 code) | N | Person Years | N | Person Years | HRa (95% CI) |
Migraine (346) | 37 | 4711 | 65 | 10426 | 1.41 (0.93-2.13) |
Migraine with aura (346.0) | 11 | 4874 | 14 | 10787 | 2.22 (0.98-5.01) |
Migraine, unspecified (346.9) | 26 | 4762 | 60 | 10490 | 1.05 (0.66-1.68) |
Migraine excl. menstrual migraine and persistent migraine aura with cerebral infarction (346.1-346.3, 346.5, 346.7-346.9) | 34 | 4725 | 60 | 10454 | 1.38 (0.90-2.11) |
Headache (784.0) | 62 | 4616 | 100 | 10259 | 1.47 (1.07-2.04) |
Other headache syndromes (339) | 21 | 4831 | 30 | 10731 | 1.83 (1.03-3.25) |
Headaches/migraines combined (339, 346, 784.0) | 90 | 4444 | 157 | 9906 | 1.41 (1.08-1.84) |
Headaches/migraines combined excl. menstrual migraine and persistent migraine aura with cerebral infarction (339, 346.1-346.3, 346.5, 346.7-346.9, 784.0) | 88 | 4456 | 156 | 9922 | 1.39 (1.06-1.81) |
Mononeuritis of upper limb and mononeuritis multiplex (354) | 27 | 4805 | 42 | 10675 | 1.71 (1.04-2.83) |
Carpal tunnel syndrome (354.0) | 16 | 4851 | 28 | 10727 | 1.51 (0.80-2.84) |
Mononeuritis of lower limb (355) | 15 | 4871 | 30 | 10761 | 1.22 (0.65-2.30) |
Visual disturbances (368) | 18 | 4814 | 38 | 10674 | 1.11 (0.62-1.96) |
Hearing loss (389) | 52 | 4679 | 123 | 10383 | 1.05 (0.75-1.46) |
Tinnitus (388.3) | 37 | 4825 | 50 | 10680 | 1.91 (1.23-2.96) |
Syncope and collapse (780.2) | 13 | 4858 | 29 | 10699 | 1.12 (0.57-2.19)b |
Dizziness and giddiness (780.4) | 20 | 4829 | 68 | 10536 | 0.73 (0.44-1.22) |
Abnormality of gait (781.2) | 13 | 4860 | 24 | 10736 | 1.17 (0.59-2.32) |
Disturbance of skin sensation (782.0) | 31 | 4804 | 61 | 10598 | 1.13 (0.73-1.76) |