Table 1.
Demographic characteristics of the study sample.
| No atopy (n = 4,040) |
Atopy (n = 2,439) |
Asthma (n = 954) |
Eczema (n = 1,181) |
Allergic rhinitis (n = 1,252) |
p value (atopy vs. controls)a |
|
|---|---|---|---|---|---|---|
| Male (%) | 34.0% | 27.3% | 26.7% | 22.9% | 29.2% | p < .001 |
|
Age,
mean (SD) |
36.8 (15.7) | 36.5 (14.5) | 35.1 (14.5) | 37.0 (14.3) | 36.5 (13.9) | p = .896 |
| Years of education, mean (SD) | 14.1 (2.1) | 14.1 (2.1) | 13.9 (2.1) | 14.2 (2.0) | 14.1 (2.0) | p = .593 |
| Psychotic experiences | 33.6% | 39.6% | 41.6% | 38.4% | 42.5% | |
| Hallucinations | 31.2% | 37.1% | 39.2% | 36.6% | 39.9% | |
| Auditory | 13.9% | 18.2% | 20.4% | 17.5% | 20.1% | |
| Visual | 11.8% | 14.0% | 15.7% | 13.2% | 15.1% | |
| Tactile | 10.1% | 13.2% | 13.4% | 13.0% | 14.1% | |
| Olfactory | 9.0% | 12.5% | 13.4% | 11.9% | 13.3% | |
| Delusions | 6.5% | 7.7% | 8.5% | 6.8% | 7.2% | |
| Paranoia | 1.7% | 2.3% | 2.8% | 2.1% | 2.1% | |
| Reference | 1.6% | 1.8% | 2.3% | 1.5% | 1.7% | |
| Guilt | 1.0% | 1.5% | 1.9% | 1.6% | 1.3% | |
| Control | 0.9% | 0.7% | 0.9% | 0.8% | 0.7% | |
| Religious | 0.5% | 0.7% | 1.0% | 0.5% | 0.5% | |
| Grandeur | 1.5% | 2.1% | 2.3% | 1.7% | 2.0% | |
| Somatic | 0.8% | 1.4% | 1.8% | 1.4% | 1.1% | |
| Capgras | 0.4% | 0.5% | 0.3% | 0.4% | 0.6% | |
| Cotard | 0.1% | 0.5% | 0.2% | 0.2% | 0.2% |
a
Gender: χ2; age and years of education: Mann–Whitney U test. n, sample size; SD, standard deviation.