Table 4.
Cross‐twin familial co‐aggregation analysis. Testing potential familial candidates
| Odds ratios (95% Confidence intervals) for the association of atopic disease in Twin 1 and depression or anxiety in Twin 2 | ||||
|---|---|---|---|---|
| Atopic diseases in Twin 1 | All twin pairsaadjusted for parental education | All twin pairsaadjusted for recent maternal psychological stress | All twin pairsaadjusted for family trauma | All twin pairsaadjusted for parental birth place |
| Ever | ||||
| ≥1 atopic disease | 1.26 (1.12, 1.40)*** | 1.23 (1.10, 1.37)** | 1.25 (1.12, 1.39)*** | 1.27 (1.14, 1.42)*** |
| Asthma | 1.31 (1.13, 1.53)** | 1.30 (1.12, 1.50)** | 1.32 (1.14, 1.53)** | 1.36 (1.17, 1.58)** |
| Eczema | 1.30 (1.14, 1.48)*** | 1.29 (1.13, 1.47)** | 1.30 (1.14, 1.47)*** | 1.31 (1.15, 1.49)*** |
| Hayfever | 1.42 (1.17, 1.72)** | 1.37 (1.12, 1.66)** | 1.37 (1.13, 1.67)** | 1.41 (1.16, 1.71)** |
| Food allergy | 1.22 (1.04, 1.42)* | 1.22 (1.05, 1.43)** | 1.23 (1.05, 1.43)** | 1.26 (1.08, 1.46)** |
| Current | ||||
| ≥1 atopic disease | 1.22 (1.08, 1.39)** | 1.20 (1.06, 1.36)** | 1.22 (1.08, 1.38)** | 1.25 (1.10, 1.442)** |
| Asthma | 1.21 (1.02, 1.44)* | 1.18 (0.98, 1.42) | 1.22 (1.03, 1.45)* | 1.25 (1.04, 1.50)* |
| Eczema | 1.45 (1.19, 1.76)** | 1.44 (1.18, 1.75)** | 1.46 (1.20, 1.77)** | 1.48 (1.22, 1.80)*** |
| Hayfever | 1.41 (1.15, 1.73)** | 1.35 (1.10, 1.66)** | 1.36 (1.11, 1.67)** | 1.41 (1.15, 1.73)** |
| Food allergy | 1.15 (0.96, 1.38) | 1.12 (0.94, 1.35) | 1.14 (0.95, 1.36) | 1.16 (0.97, 1.39) |
N = 12 474 (those with all information who have a twin with all information).
aAdjusted for gestational age and maternal age at delivery.
* P ≤ .05, **P < .01, ***P < .001.