Table 1 Characteristics of the study population
Cases (n = 388) | Controls (n = 19341) | p-value | |
|---|---|---|---|
Sex | N (%) | N (%) | 0.03 |
Male | 220 (57) | 9870 (51) | |
Female | 168 (43) | 9471 (49) | |
Age at diagnosis (yrs) | - | ||
0–4 | 50 (13) | 2464 (13) | |
5–9 | 70 (18) | 3527 (18) | |
10–14 | 143 (37) | 7133 (37) | |
15–19 | 125 (32) | 6217 (32) | |
Gestational age (weeks) | 0.24 | ||
32 to < 37 | 34 (9) | 1659 (9) | |
37 to < 39 | 84 (22) | 4163 (22) | |
39–41 | 238 (61) | 11,418 (59) | |
≥ 42 | 31 (8) | 1780 (9) | |
Missing | 1 (1) | 321 (2) | |
Birth weight (grams) | Mean (SD*) | Mean (SD*) | 0.02 |
3434 (577) | 3363 (516) | ||
Mode of delivery | |||
Vaginal | 302 (78) | 14,940 (77) | 0.78 |
Cesarean | 86 (22) | 4401 (23) | |
Race and ethnicity | < 0.01 | ||
Non-Hispanic White | 177 (46) | 6484 (34) | |
Non-Hispanic Black | 1 (1) | 1500 (8) | |
Hispanic | 179 (46) | 9219 (48) | |
Asian/Pacific Islander | 29 (7) | 1951 (10) | |
Other | 2 (1) | 187 (1) | |
Mother’s educational attainment | 0.09 | ||
8th grade or less | 33 (9) | 2071 (11) | |
9th − 12th grade | 130 (34) | 6797 (35) | |
Some college or more | 133 (34) | 5570 (29) | |
Unknown | 92 (24) | 4903 (25) | |
Mean (SD*) | Mean (SD*) | t-test p-value | |
Percent of block group with a college education or more | 47.2 (20.3) | 46.0 (20.9) | 0.26 |
Percent of block group in poverty | 25.1 (18.4) | 27.3 (18.9) | 0.02 |
Social Vulnerability Index percentile (total) | 57.0 (29.4) | 62.1 (27.7) | < 0.01 |
SVI socio-economic domain percentile | 55.5 (29.1) | 59.8 (28.1) | < 0.01 |
SVI Minority status and language percentile | 55.8 (29.7) | 60.6 (27.6) | < 0.01 |