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TABLE B-23
1999 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 0 3 1 0 0 0 0 1 0 1 2 8
15 YEARS 1 3 7 0 0 0 0 0 1 0 3 15
16 YEARS 0 17 12 3 2 1 1 0 1 1 1 39
17 YEARS 9 42 21 8 3 2 5 2 0 1 9 102
18 YEARS 12 62 36 17 11 4 1 4 0 0 11 158
19 YEARS 19 92 61 24 9 3 1 3 2 1 18 233
(15-19 YRS) ( 41) ( 216) ( 137) ( 52) ( 25) ( 10) ( 8) ( 9) ( 4)( 3) ( 42) ( 547)
20 YEARS 18 99 70 17 10 9 6 3 1 1 18 252
21 YEARS 35 109 81 22 9 5 6 1 4 1 22 295
22 YEARS 35 140 68 19 13 5 2 2 1 0 11 296
23 YEARS 29 127 58 18 7 5 4 5 1 1 20 275
24 YEARS 33 149 73 13 5 4 5 3 0 0 18 303
(20-24 YRS) ( 150) ( 624) ( 350) ( 89) ( 44) ( 28) ( 23) ( 14) ( 7)( 3) ( 89) (1421)
25-29 YRS 219 946 354 83 53 21 12 5 2 1 71 1767
30-34 YRS 224 954 371 62 27 23 13 10 2 2 46 1734
35-39 YRS 105 439 222 52 14 10 11 4 3 4 27 891
40-44 YRS 28 93 35 12 2 3 1 2 0 0 8 184
45+ YEARS 2 1 2 1 0 0 0 0 0 1 1 8
UNKNOWN 0 0 0 0 0 0 0 0 0 0 0 0
TOTAL 769 3276 1472 351 165 95 68 45 18 15 286 6560
CUMULATIVE ROW PERCENTS - EXCLUDING UNKNOWNS
AGE OF
MOTHER FIRST SECOND THIRD FOURTH FIFTH SIXTH SEVENTH EIGHTH NINTH NONE
----------- ----- ------ ------ ------ ----- ----- ------- ------ ----- -----
<15 YEARS 0.0 50.0 66.7 66.7 66.7 66.7 66.7 83.3 83.3 100.0
15 YEARS 8.3 33.3 91.7 91.7 91.7 91.7 91.7 91.7 100.0 100.0
16 YEARS 0.0 44.7 76.3 84.2 89.5 92.1 94.7 94.7 97.4 100.0
17 YEARS 9.7 54.8 77.4 86.0 89.2 91.4 96.8 98.9 98.9 100.0
18 YEARS 8.2 50.3 74.8 86.4 93.9 96.6 97.3 100.0 100.0 100.0
19 YEARS 8.8 51.6 80.0 91.2 95.3 96.7 97.2 98.6 99.5 100.0
(15-19 YRS) ( 8.1) ( 50.9) ( 78.0) ( 88.3) ( 93.3) ( 95.2) ( 96.8) ( 98.6) ( 99.4) (100.0)
20 YEARS 7.7 50.0 79.9 87.2 91.5 95.3 97.9 99.1 99.6 100.0
21 YEARS 12.8 52.7 82.4 90.5 93.8 95.6 97.8 98.2 99.6 100.0
22 YEARS 12.3 61.4 85.3 91.9 96.5 98.2 98.9 99.6 100.0 100.0
23 YEARS 11.4 61.2 83.9 91.0 93.7 95.7 97.3 99.2 99.6 100.0
24 YEARS 11.6 63.9 89.5 94.0 95.8 97.2 98.9 100.0 100.0 100.0
(20-24 YRS) ( 11.3) ( 58.1) ( 84.4) ( 91.1) ( 94.4) ( 96.5) ( 98.2) ( 99.2) ( 99.8) (100.0)
25-29 YRS 12.9 68.7 89.6 94.5 97.6 98.8 99.5 99.8 99.9 100.0
30-34 YRS 13.3 69.8 91.8 95.4 97.0 98.4 99.2 99.8 99.9 100.0
35-39 YRS 12.2 63.0 88.7 94.7 96.3 97.5 98.7 99.2 99.5 100.0
40-44 YRS 15.9 68.8 88.6 95.5 96.6 98.3 98.9 100.0 100.0 100.0
45+ YEARS 28.6 42.9 71.4 85.7 85.7 85.7 85.7 85.7 85.7 100.0
UNKNOWN 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
TOTAL 12.3 64.5 87.9 93.5 96.2 97.7 98.8 99.5 99.8 100.0
* SEE APPENDIX B FOR DATA QUALITY NOTES
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