Value |
Category |
1 |
Heredity |
2 |
Congenital |
3 |
At birth |
4 |
Dumb |
5 |
Contagion |
6 |
Envy, charm |
96 |
Other |
98 |
DK |
Warning: these figures indicate the number of cases found in the data file. They cannot be interpreted as summary statistics of the population of interest.