Table 1.

Heritability (a²) and the role of unique environmental effects (e²) for the individual fears/phobias estimated from our multivariate model

Phobia	a2	e2
Going out of the house alone	0.25	0.75
Being in crowds	0.57	0.43
Meeting new people	0.24	0.76
Giving a speech	0.23	0.77
Using public bathrooms	0.52	0.48
Eating in public	0.54	0.46
Spiders	0.45	0.55
Bugs	0.06	0.94
Mice	0.45	0.55
Snakes	0.47	0.53
Bats	0.37	0.63
Other animals	0.42	0.58
Tunnels	0.45	0.55
Other closed places	0.34	0.66
Bridges	0.47	0.53
Airplanes	0.49	0.51
Other high places	0.38	0.62
The sight of blood	0.46	0.54
Needles or injections	0.36	0.64
Dentists or hospitals	0.36	0.64
Certain diseases such as cancer or AIDS	0.39	0.61