Measure of all moves that take place during a period – unlike census

• Measure of all moves that take place during a period – unlike census

• They include students who register with a doctor or health service facility in the area of their further or higher education institution (unlike pre 2001 censuses)

• Their quarterly availability means that they provide a continuous record of migration over time

• Comprehensive as individuals are given an NHS record at birth and those in private health schemes usually maintain their NHS registration during their lives

Notes:

1. unlike census data which misses multiple migrations, migrants who are born in the period and migrants who die during the period;