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POLOPEAGE1
Age when had 1st operation to correct for limitations due to polio

Codes and Frequencies



An 'X' indicates the category is available for that sample

00NIUXX
011··
022X·
033·X
044X·
055·X
066··
077XX
088XX
099X·
1010·X
1111·X
1212XX
1313·X
1414X·
1515XX
1616·X
1717··
1818··
1919··
2020·X
2121··
2222··
2323··
2424·X
2525·X
2626··
2727··
2828··
2929··
3030··
3131··
3232··
3333·X
3434··
3535·X
8585+ years old··
98Unknown - not ascertainedXX