highly significantp < 2.2 × 10 −16
When restricted to people of M/F gender and whose gender was identically recorded in both databases, forename mismatches occurred in 2.37% of females (1727/72,948) and 2.16% of males (1153/53,474), a small but significant difference ( χ 2 1 = 6.0909, p = 0.01359), while surname mismatches occurred in 6.78% of females (4947/72,958) and 2.22% of males (1185/53,484), a highly significant difference ( χ 2 1 = 1392.7, p < 2.2 × 10 −16 ).