Table 2. Estimates of inbreeding load (B) in the Habsburg dynasty.

	All data set 1450–1800	Period 1450–1600	Period 1600–1800	Test for differences between periods
				F S	P
Survival to 10 years
B	3.937	4.373	3.674	0.331	0.360
SE	±0.568	±1.032	±0.672
P	0.000	0.000	0.000
Infant survival
B	2.050	0.396	2.745	3.737	0.060
SE	±0.440	±0.858	±0.481
P	0.000	0.649	0.000
Child survival
B	1.886	3.975	0.929	7.945	0.005
SE	±0.516	±0.868	±0.618
P	0.001	0.000	0.140