Table 2

Source	Male patient couple	Female patient couple	Control couple	P Male patient couple vs control	P Female patient couple vs control
UK	18.7	18	6.9	<0.00003	<0.0000003
NZ	16.5	12.4	4.8	0.009	0.00001
Combined	15.1	16.6	6.2	<0.00003	<0.000001

*A low discordance score indicates that couples ate similar foods. The scores were compared using unpaired Student’s t-test.

Table 2: Mean discordance scores*.