Table 1.
Demographic and Sociofamilial Distribution Among All Pedigrees
| Total | Parental Marital Status | Single‐Parent Status | Paternal Absence Status | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Parents not married | Parents married | P value | Living with one parent | Living with two parents | P value | No absence | Partial absence | Complete absence | P value | ||
| No. | 148 | 63 (42) | 85 (58) | 62 (42) | 86 (58) | 74 (50) | 31 (21) | 43 (29) | |||
| Proband age, median (IQR range), y | 12.2 (9.0–15.1) | 11.9 (8.3–15.4) | 12.3 (9.4–15.1) | .647 | 12.6 (9.0–15.4) | 12.1 (9.0–15.1) | .806 | 12.2 (9.3–15.1) | 13.2 (9.4–15.1) | 12 (8.3–15.5) | .821 |
| Proband male sex, No. (%) | 78 (53) | 26 (41) | 52 (61) | .016 | 26 (42) | 52 (60) | .026 | 45 (61) | 13 (42) | 20 (47) | .132 |
| Proband ethnicity, No. (%) | |||||||||||
| African American | 69 (47) | 39 (62) | 30 (35) | .012 | 40 (65) | 29 (34) | .003 | 24 (32) | 16 (52) | 29 (67) | .009 |
| Hispanic | 51 (34) | 17 (27) | 34 (40) | 14 (23) | 37 (43) | 29 (39) | 11 (35) | 11 (26) | |||
| Caucasian | 22 (15) | 5 (8) | 17 (20) | 6 (10) | 16 (19) | 17 (23) | 3 (10) | 2 (5) | |||
| Others | 6 (4) | 2 (3) | 4 (5) | 2 (3) | 4 (5) | 4 (5) | 1 (3) | 1 (2) | |||
| Mother's education, No. (%) | |||||||||||
| <High school | 27 (19) | 9 (15) | 18 (22) | .134 | 8 (14) | 19 (23) | .211 | 13 (18) | 11 (37) | 3 (7) | .001 |
| High school or GED | 38 (27) | 19 (31) | 19 (23) | 17 (29) | 21 (25) | 20 (28) | 7 (23) | 11 (27) | |||
| Some college/technical school | 52 (36) | 26 (43) | 26 (32) | 26 (44) | 26 (31) | 20 (28) | 8 (27) | 24 (59) | |||
| College degree/postgraduate | 26 (18) | 7 (11) | 19 (23) | 8 (14) | 18 (21) | 19 (26) | 4 (13) | 3 (7) | |||
| Father's education, No. (%) | |||||||||||
| <High school | 36 (26) | 15 (26) | 21 (26) | .135 | 14 (25) | 22 (26) | .135 | 17 (24) | 10 (33) | 9 (24) | .058 |
| High school or GED | 60 (43) | 31 (53) | 29 (35) | 30 (54) | 30 (36) | 24 (33) | 13 (43) | 23 (61) | |||
| Some college/technical school | 24 (17) | 7 (12) | 17 (21) | 7 (13) | 17 (20) | 16 (22) | 5 (17) | 3 (8) | |||
| College degree/postgraduate | 20 (14) | 5 (9) | 15 (18) | 5 (9) | 15 (18) | 15 (21) | 2 (7) | 3 (8) | |||
| Mother employed, No. (%) | 89 (62) | 43 (70) | 46 (56) | .079 | 41 (69) | 48 (57) | .134 | 44 (61) | 15 (50) | 30 (73) | .133 |
| Father employed, No. (%) | 103 (74) | 33 (57) | 70 (85) | <.001 | 33 (58) | 70 (84) | <.001 | 62 (86) | 22 (73) | 19 (50) | <.001 |
| Size of the family (first‐degree), No. (%) | 4.5 (4–5) | 4 (3–4) | 4 (4–5) | <.001 | 4 (3–4) | 4 (4–5) | <.001 | 4 (4–5) | 4 (3–5) | 3 (3–4) | <.001 |
| Maternal age, median (IQR range), y | 37.4 (32.9–42.2) | 35.3 (31.6–40.1) | 38.8 (35.1–44.0) | .002 | 35.2 (31.4–39.3) | 38.8 (35.2–44) | .002 | 39.2 (35–44.3) | 36.4 (32.1–41.3) | 34.6 (31.8–38.9) | .003 |
| Paternal age, median (IQR range), y | 40.4 (36.0–45.5) | 37.4 (34.2–45.1) | 41.6 (36.7–45.8) | .214 | 37.4 (35.0–48.0) | 41.6 (36.6–45.0) | .659 | 42.2 (37.6–45.7) | 37.1 (29.4–45.2) | 34.6 (31.8–38.9) | .313 |
| Residential urban status, No. (%) | 128 (90) | 54 (90) | 74 (90) | .962 | 52 (90) | 76 (90) | .872 | 64 (89) | 24 (83) | 40 (98) | .096 |
Abbreviations: GED, General Educational Development test; IQR, interquartile range. Data missing for mother's education and employment status (5), father's education and employment status (8), maternal age (13), paternal age (75), and residential urban status (6).