aternal education     High school and below    00,000 (00.0)   0000 (00.0)                  0000 (00.0)                    \<0.000                           Junior college           0000 (00.0)     0000 (00.0)                  000 (00.0)                                                Bachelor                 0000 (00.0)     0000 (00.0)                  000 (0.0)                                                 Master                   000 (0.0)       00 (0.0)                     00 (0.0)                                                  PhD                      000 (0.0)       000 (0.0)                    00 (0.0)                          ---------------------------------------------------------------------------------------------------------------------------------------  Abbreviations: 