Status

Original tracking

number

Unqualified data description

Effective tracking number

Further screening principle

Qualified screening number

Survivors

12,699

a. Repeat case: 25

b. Tracking individuals have no data: 40

c. Survivors have death registration: 104

12,530

a. Default-free

b. Gender, province, census register consistent

c. Age gap is 3 to 5

d. Education gap is positive

8703

Death

2539

a. Repeat case: 13

2506

a. Default-free

1742