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TABLE B-22
1998 VERMONT RESIDENT BIRTHS
                                  MONTH PRENATAL CARE BEGAN BY NUMBER OF PRENATAL VISITS  
                                       NUMBER OF EVENTS AND CUMULATIVE ROW PERCENTS
                    
                                             MONTH PRENATAL CARE BEGAN*
                    
                                                  NUMBER OF EVENTS
NUMBER
OF VISITS*      FIRST   SECOND  THIRD   FOURTH   FIFTH   SIXTH   SEVENTH   EIGHTH   NINTH   NONE  UNKNOWN  TOTAL
------------    -----   ------  -----   ------   -----   -----   -------   ------   -----   ----  -------  ------

NONE               0       0       0        0       0       0        0         0        0     19      0       19
1                  1       8       6        1       1       1        2         3        3      0      1       27
2                  1       2       3        2       1       1        5         0        6      0      1       22
3                  1       4       7        6       4       4        5         3        4      0      6       44
4                  9      20       8       11       8      10        4         5        4      0      2       81
5                  6      37      34       19      10       5        6         4        2      0      5      128
6-8               79     399     251       81      44      36       19        11        1      0     26      947
9-11             174     884     448      142      52      32       12         2        2      0     77     1825
12                69     389     192       46      14       1        2         0        0      0     30      743
13-15            247     998     391       67      27       7        1         0        0      0     57     1795
16-19            113     424     125       23       6       0        0         0        0      0      9      700
20+               29      98      28        5       0       0        0         0        0      0      4      164
UNKNOWN            1      15      11        2       3       0        1         0        0      0     41       74

TOTAL            730    3278    1504      405     170      97       57        28       22     19    259     6569

                                       CUMULATIVE ROW PERCENTS - EXCLUDING UNKNOWNS 
NUMBER OF
VISITS*         FIRST   SECOND  THIRD   FOURTH   FIFTH   SIXTH   SEVENTH   EIGHTH   NINTH   NONE
------------    -----   ------  -----   ------   -----   -----   -------   ------   -----   -----

NONE              0.0     0.0     0.0     0.0      0.0     0.0       0.0      0.0     0.0   100.0
1                 3.8    34.6    57.7    61.5     65.4    69.2      76.9     88.5   100.0   100.0
2                 4.8    14.3    28.6    38.1     42.9    47.6      71.4     71.4   100.0   100.0
3                 2.6    13.2    31.6    47.4     57.9    68.4      81.6     89.5   100.0   100.0
4                11.4    36.7    46.8    60.8     70.9    83.5      88.6     94.9   100.0   100.0
5                 4.9    35.0    62.6    78.0     86.2    90.2      95.1     98.4   100.0   100.0
6-8               8.6    51.9    79.2    87.9     92.7    96.6      98.7     99.9   100.0   100.0
9-11             10.0    60.5    86.2    94.3     97.3    99.1      99.8     99.9   100.0   100.0
12                9.7    64.2    91.2    97.6     99.6    99.7     100.0    100.0   100.0   100.0
13-15            14.2    71.6    94.1    98.0     99.5    99.9     100.0    100.0   100.0   100.0
16-19            16.4    77.7    95.8    99.1    100.0   100.0     100.0    100.0   100.0   100.0
20+              18.1    79.4    96.9   100.0    100.0   100.0     100.0    100.0   100.0   100.0
UNKNOWN           3.0    48.5    81.8    87.9     97.0    97.0     100.0    100.0   100.0   100.0

TOTAL            11.6    63.5    87.4    93.8     96.5    98.0      98.9     99.4    99.7   100.0
                    
* SEE APPENDIX B FOR DATA QUALITY NOTES.

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