Characteristics | n (%) |
---|---|
Infant’s sex | |
Male | 2076 (50.5) |
Female | 2032 (49.5) |
Maternal skin color | |
Black | 646 (15.9) |
Brown | 527 (12.9) |
White | 2902 (71.2) |
Family income (quintiles) | |
Q1 | 762 (19.7) |
Q2 | 778 (20.1) |
Q3 | 778 (20.1) |
Q4 | 869 (22.5) |
Q5 | 680 (17.6) |
Maternal education (years of schooling) | |
0–4 | 367 (8.9) |
5–8 | 1058 (25.8) |
9–11 | 1413 (34.4) |
≥12 | 268 (30.9) |
Maternal age (years) | |
≤18 | 417 (10.1) |
19–24 | 1156 (28.1) |
25–30 | 1198 (29.2) |
31–36 | 988 (24.1) |
≥37 | 348 (8.5) |
Parity | |
≥5 | 159 (3.9) |
4 | 186 (4.5) |
3 | 456 (11.1) |
2 | 1273 (31.0) |
1 | 2033 (49.5) |
Maternal cohabitation with a partner | |
No | 584 (14.2) |
Yes | 3523 (85.8) |
Who advised on infant sleep position* | |
Nobody | 1706 (41.6) |
Child’s father or grandparents | 157 (3.8) |
Physician | 1452 (35.4) |
Other health care professionals | 671 (16.3) |
Other | 120 (2.9) |
Breastfeeding at 3 months* | |
No | 957 (23.3) |
Yes | 3150 (76.7) |
Bed sharing at 3 months* | |
Yes | 1845 (46.8) |
No | 2096 (53.2) |
Usual infant sleep position* | |
Prone | 66 (1.6) |
Lateral | 1768 (43.0) |
Supine (appropriate position) | 2274 (55.4) |