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TABLE B-23
1997 VERMONT RESIDENT BIRTHS
MONTH PRENATAL CARE BEGAN BY AGE OF MOTHER
NUMBER OF EVENTS AND CUMULATIVE ROW PERCENTS
MONTH PRENATAL CARE BEGAN*
AGE OF
MOTHER FIRST SECOND THIRD FOURTH FIFTH SIXTH SEVENTH EIGHTH NINTH NONE UNKNOWN TOTAL
------------ ----- ------ ------ ------ ------ ------ ------- ------ ------ ------ ------- -----
<15 YEARS 1 1 1 1 0 0 1 1 0 1 0 7
15 YEARS 2 6 5 2 2 2 0 0 0 0 0 19
16 YEARS 2 15 8 4 3 2 1 0 0 0 3 38
17 YEARS 9 28 24 12 4 5 4 2 1 1 6 96
18 YEARS 12 55 49 17 11 4 4 0 1 2 11 166
19 YEARS 27 96 43 19 12 7 0 5 0 4 18 231
(15-19 YRS) ( 52) ( 200) ( 129) ( 54) ( 32) ( 20) ( 9) ( 7) ( 2) ( 7) ( 38) ( 550)
20 YEARS 22 103 65 18 8 6 4 2 0 0 18 246
21 YEARS 26 107 68 15 10 5 5 0 2 0 13 251
22 YEARS 37 122 64 22 10 2 6 5 4 0 19 291
23 YEARS 41 149 82 32 9 6 7 1 0 1 14 342
24 YEARS 27 173 77 21 13 6 1 1 3 0 14 336
(20-24 YRS) ( 153) ( 654) ( 356) ( 108) ( 50) ( 25) ( 23) ( 9) ( 9) ( 1) ( 78) (1466)
25-29 YRS 240 1010 412 99 38 17 7 8 1 1 61 1894
30-34 YRS 210 908 357 76 18 17 6 6 2 3 53 1656
35-39 YRS 97 436 202 34 25 13 7 2 1 1 33 851
40-44 YRS 22 91 41 7 3 1 3 2 0 0 4 174
45+ YEARS 0 0 3 1 0 0 0 0 0 0 0 4
UNKNOWN 0 0 0 0 0 0 0 0 0 0 0 0
TOTAL 775 3300 1501 380 166 93 56 35 15 14 267 6602
CUMULATIVE ROW PERCENTS - EXCLUDING UNKNOWNS
AGE OF
MOTHER FIRST SECOND THIRD FOURTH FIFTH SIXTH SEVENTH EIGHTH NINTH NONE
------------ ------ ------ ------ ------ ------ ------ ------- ------- ------- -------
<15 YEARS 14.3 28.6 42.9 57.1 57.1 57.1 71.4 85.7 85.7 100.0
15 YEARS 10.5 42.1 68.4 78.9 89.5 100.0 100.0 100.0 100.0 100.0
16 YEARS 5.7 48.6 71.4 82.9 91.4 97.1 100.0 100.0 100.0 100.0
17 YEARS 10.0 41.1 67.8 81.1 85.6 91.1 95.6 97.8 98.9 100.0
18 YEARS 7.7 43.2 74.8 85.8 92.9 95.5 98.1 98.1 98.7 100.0
19 YEARS 12.7 57.7 77.9 86.9 92.5 95.8 95.8 98.1 98.1 100.0
(15-19 YRS) ( 10.2) ( 49.2) ( 74.4) ( 85.0) ( 91.2) ( 95.1) ( 96.9) ( 98.2) ( 98.6) (100.0)
20 YEARS 9.6 54.8 83.3 91.2 94.7 97.4 99.1 100.0 100.0 100.0
21 YEARS 10.9 55.9 84.5 90.8 95.0 97.1 99.2 99.2 100.0 100.0
22 YEARS 13.6 58.5 82.0 90.1 93.8 94.5 96.7 98.5 100.0 100.0
23 YEARS 12.5 57.9 82.9 92.7 95.4 97.3 99.4 99.7 99.7 100.0
24 YEARS 8.4 62.1 86.0 92.5 96.6 98.4 98.8 99.1 100.0 100.0
(20-24 YRS) ( 11.0) ( 58.1) ( 83.8) ( 91.6) ( 95.2) ( 97.0) ( 98.6) ( 99.3) ( 99.9) (100.0)
25-29 YRS 13.1 68.2 90.7 96.1 98.1 99.1 99.5 99.9 99.9 100.0
30-34 YRS 13.1 69.7 92.0 96.8 97.9 98.9 99.3 99.7 99.8 100.0
35-39 YRS 11.9 65.2 89.9 94.0 97.1 98.7 99.5 99.8 99.9 100.0
40-44 YRS 12.9 66.5 90.6 94.7 96.5 97.1 98.8 100.0 100.0 100.0
45+ YEARS 0.0 0.0 75.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0
UNKNOWN 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
TOTAL 12.2 64.3 88.0 94.0 96.6 98.1 99.0 99.5 99.8 100.0
* SEE APPENDIX B FOR DATA QUALITY NOTES.
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