Colour vision and symptom ratings in non-exposed women and men
| Question | Women (n=28) | Men (n=28) | p value* |
|---|---|---|---|
| *p value in Mann-Whitney U test, p value only given when <0.1. | |||
| †One male with congenital colour blindness excluded. | |||
| ‡Ratings in mm on a 0–100 mm visual analogue scale, average of three ratings per subject prior to exposure. | |||
| Color confusion index† | 1.14 | 1.25 | 0.04 |
| Symptom ratings‡ | |||
| 1 Discomfort in the eyes | 3.4 | 1.3 | – |
| 2 Discomfort in the nose | 4.6 | 2.6 | – |
| 3 Discomfort in throat or airways | 7.1 | 2.5 | 0.06 |
| 4 Breathing difficulty | 3.1 | 1.0 | – |
| Average of symptoms 1–4 | 4.5 | 1.9 | 0.07 |
| 5 Solvent smell | 1.3 | 0.6 | – |
| 6 Headache | 2.3 | 1.1 | – |
| 7 Fatigue | 11.0 | 7.3 | – |
| 8 Nausea | 1.1 | 0.8 | – |
| 9 Dizziness | 0.7 | 0.9 | – |
| 10 Feeling of intoxication | 0.5 | 0.7 | – |
| Average of symptoms 6–10 | 3.3 | 2.4 | – |