Table 1.
Demographic and clinical characteristics of mothers delivering singleton infants in Washington State, 1989–2014.
| Orofacial Cleft (n=2,136) |
No Orofacial Cleft (n=25,826) |
|||
|---|---|---|---|---|
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| n | (%) | n | (%) | |
|
| ||||
| Age, (years) | 2,134 | (100) | 25,808 | (100) |
| <20 | 219 | (10.3) | 3,371 | (13.1) |
| 20–34 | 1,630 | (76.4) | 19,298 | (74.8) |
| 35+ | 285 | (13.4) | 3,139 | (12.2) |
|
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| Missing | 2 | 18 | ||
|
| ||||
| Race/ Ethnicity | 2,085 | (100) | 25,227 | (100) |
| White | 1,573 | (75.4) | 18,197 | (72.1) |
| Black | 60 | (2.9) | 1,112 | (4.4) |
| Hispanic | 198 | (9.5) | 3,049 | (12.1) |
| Asian/Pacific Islander | 180 | (8.6) | 2,376 | (9.4) |
| American Indian | 74 | (3.6) | 493 | (2.0) |
|
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| Missing | 51 | 599 | ||
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| Education | 1,826 | (100) | 21,929 | (100) |
| Less than High School | 359 | (19.7) | 4,324 | (19.7) |
| High School Degree | 508 | (27.8) | 5,806 | (26.5) |
| 1–3 Years of College | 520 | (28.5) | 5,863 | (26.7) |
| 4+ Years of College | 439 | (24.0) | 5,936 | (27.1) |
|
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| Missing | 310 | 3,897 | ||
|
| ||||
| Marital Status | 2132 | (100) | 25,774 | (100) |
| Married | 1420 | (66.6) | 16,893 | (65.5) |
| Not Married | 712 | (33.4) | 8,881 | (34.5) |
|
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| Missing | 4 | 52 | ||
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| Median Annual Family Income at Census Tract of Residence, (USD) a | 2,024 | (100) | 24,655 | (100) |
| <30,000 | 385 | (19.0) | 4,664 | (18.9) |
| 30,000–55,000 | 1,257 | (62.1) | 14,817 | (60.1) |
| >55,000 | 382 | (18.9) | 5,174 | (21.0) |
|
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| Missing | 112 | 1,171 | ||
|
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| Rural-Urban Residence | 2,017 | (100) | 24,535 | (100) |
| Rural | 537 | (26.6) | 5,812 | (23.7) |
| Urban | 1,480 | (73.4) | 18,723 | (76.3) |
|
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| Missing | 119 | 1,291 | ||
|
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| Pre-pregnancy Diabetes | 2,044 | (100) | 25,419 | (100) |
| Yes | 14 | (0.7) | 154 | (0.6) |
| No | 2,030 | (99.3) | 25,265 | (99.4) |
|
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| Missing | 92 | 407 | ||
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| Average Number of Cigarettes Smoked per Day During Pregnancy | 2,136 | (100) | 25,826 | (100) |
| 0 | 1,734 | (84.1) | 22,252 | (86.8) |
| 1–9 | 155 | (7.5) | 1,269 | (5.1) |
| 10–19 | 115 | (5.6) | 1,046 | (4.2) |
| 20–29 | 52 | (2.5) | 434 | (1.7) |
| 30+ | 5 | (0.2) | 59 | (0.2) |
| Missing | 75 | 766 | ||
|
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| Kotelchuck Prenatal Care Index | 1,869 | (100) | 22,921 | (100) |
| Inadequate | 278 | (15.1) | 3,352 | (14.6) |
| Intermediate | 389 | (20.4) | 4,667 | (20.4) |
| Adequate | 843 | (44.3) | 10,681 | (46.6) |
| Intensive | 359 | (20.3) | 4,221 | (18.4) |
|
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| Missing | 267 | 2,905 | ||
a
Median annual family income of census tract of maternal residence in the 2000 Census.