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. Author manuscript; available in PMC: 2021 Mar 1.
Published in final edited form as: Am J Prev Med. 2020 Jan 15;58(3):418–426. doi: 10.1016/j.amepre.2019.10.012

Table 1.

Maternal Characteristics Among Singleton Deliveries to DHH Women and Non-DHH Women in Massachusetts, 1998–2013, N=13,258

Characteristics DHH (N=l,385) Non-DHH (N=l,187,291) p-valuea

n (%) n (%)
Maternal age, years <0.001
 <20 82 (5.9) 72,048 (6.1)
 20–24 289 (20.9) 184,284 (15.5)
 25–34 356 (25.7) 291,252 (24.5)
 35–39 370 (26.7) 380,620 (32.1)
 ≥40 288 (20.8) 259,067 (21.8)
Maternal race/ethnicity <0.001
 Non-Hispanic white 896 (64.7) 818,061 (68.9)
 Non-Hispanic black 135 (9.7) 97,514 (8.2)
 Hispanic 264 (19.1) 163,235 (13.7)
 Other 89 (6.4) 105,470 (8.9)
 Missing <11b (0.1) 3,011 (0.3)
Maternal education <0.001
 Less than high school 210 (15.2) 141,498 (11.9)
 High school or GED 581 (41.9) 411,023 (34.6)
 Some college 188 (13.6) 136,683 (11.5)
 College and higher 394 (28.4) 492,649 (41.5)
 Missing 12 (0.9) 5,438 (0.5)
Marital status <0.001
 Married 730 (52.7) 817,210 (68.8)
 Not married 651 (47.0) 366,981 (30.9)
 Missing <11b (0.3) 3,100 (0.3)
Mother’s place of birth <0.001
 U.S. born 1,125 (81.2) 880,695 (74.2)
 Foreign born 259 (18.7) 305,999 (25.8)
 Missing <11b (0.1) 597 (0.0)
Language used at home <0.001
 English 798 (57.6) 886,595 (74.7)
 Other 581 (41.9) 294,589 (24.8)
 Missing <11b (0.4) 6,107 (0.5)
Father named at delivery <0.001
 No 172 (12.4) 97,146 (8.2)
 Yes 1,212 (87.5) 1,090,051 (91.8)
 Missing <11b (0.1) 94 (0.0)
Health insurance <0.001
 Private 636 (45.9) 785,123 (66.1)
 Public 746 (53.9) 397,572 (33.5)
 Missing <11b (0.2) 4,596 (0.4)
Smoking during pregnancy <0.001
 No 1,222 (88.2) 1,088,983 (91.7)
 Yes 163 (11.8) 97,397 (8.2)
 Missing 0 (0.0) 911 (0.1)
Parity 0.195
 First pregnancy 655 (47.3) 538,058 (45.3)
 Second pregnancy 431 (31.1) 402,219 (33.9)
 Third or higher 293 (21.2) 241,995 (20.4)
 Missing <11b (0.4) 5,019 (0.4)
Kotelchuck Indexc <0.001
 Inadequate 17 (1.2) 13,277 (1.1)
 Intermediate 110 (7.9) 93,821 (7.9)
 Adequate 546 (39.4) 544,660 (45.9)
 Adequate plus 678 (49.0) 511,429 (43.1)
 Missing 34 (2.5) 24,104 (2.0)
Maternal age, years, mean (SE) 28.9 (0.17) 29.6 (0.01) 0.001

Notes: Data n (%) unless otherwise specified. Boldface indicates statistical significance (p<0.05).

a

P-values for differences, Chi square-test or t-test.

b

To maintain confidentiality, cells with <11 cases cannot be reported.

c

Adequacy of prenatal care characterized as adequate plus, adequate, intermediate or less than adequate using Kotelchuck index.23,24

Source: Massachusetts Pregnancy to Early Life Longitudinal Data System (PELL), 1998–2013.

DHH, Deaf or Hard of Hearing.