TABLE 2.
Characteristics of 5222 Newborns Eligible for Routine Car Seat Tolerance Screening (2014–2018)
| Not Screened | Screened | Total | P | |||
|---|---|---|---|---|---|---|
| Pass | Fail | 2-waya | 3-way | |||
| System,b n (%) | 494 (9) | 4349 (83) | 379 (7) | 5222 | ≤.001 | ≤.001 |
| System A | 287 (12) | 1922 (82) | 130 (6) | 2339 | ||
| System B | 207 (7) | 2427 (84) | 249 (9) | 2883 | ||
| Screening criteria, n (%) | ≤.001 | ≤.001 | ||||
| Preterm only | 266 (54) | 2788 (64) | 271 (72) | 3325 (64) | ||
| Birth weight only | 74 (15) | 383 (9) | 39 (10) | 496 (9) | ||
| Preterm and birth weight | 154 (31) | 1178 (27) | 69 (18) | 1401 (27) | ||
| Male, n (%) | 240 (49) | 2245 (52) | 194 (51) | 2679 (51) | .20 | .44 |
| Race/ethnicity, n (%) | .30 | .11 | ||||
| White, non-Hispanic | 219 (44) | 1884 (49) | 180 (52) | 2491 (48) | ||
| Black, non-Hispanic | 145 (29) | 1047 (27) | 61 (21) | 1454 (28) | ||
| Asian | 18 (4) | 187 (4) | 21 (6) | 226 (4) | ||
| Hispanic | 65 (13) | 526 (12) | 57 (15) | 648 (12) | ||
| Other/unknown | 47 (10) | 331 (8) | 25 (7) | 403 (8) | ||
| Gestational age, wk, n (%) | ≤.001 | ≤.001 | ||||
| 34 | 150 (30) | 901 (21) | 38 (10) | 1089 (21) | ||
| 35 | 81 (16) | 1113 (26) | 109 (29) | 1303 (25) | ||
| 36 | 189 (38) | 1952 (45) | 193 (51) | 2334 (45) | ||
| ≥37 | 74 (15) | 383 (9) | 39 (10) | 496 (9) | ||
| Birth weight, g, mean (SD) | 2444 (592) | 2485 (464) | 2552 (441) | 2486 (477) | .04 | .004 |
| Cesarean section, n (%) | 257 (52) | 2102 (48) | 175 (46) | 25 534 (49) | .10 | .19 |
| Insurance, n (%) | .02 | .04 | ||||
| Medicaid | 213 (43) | 1586 (36) | 144 (38) | 1943 (37) | ||
| Private | 237 (48) | 2312 (53) | 190 (50) | 2739 (52) | ||
| Other | 44 (9) | 451 (10) | 45 (12) | 540 (10) | ||
| Discharging unit, n (%) | ≤.001 | ≤.001 | ||||
| Nursery | 212 (43) | 2652 (61) | 299 (79) | 3163 (61) | ||
| NICU/floor | 282 (57) | 1697 (39) | 80 (21) | 2059 (39) | ||
| Birth year, n (%) | ≤.001 | ≤.001 | ||||
| 2014 | 128 (26) | 653 (15) | 39 (10) | 820 (16) | ||
| 2015 | 123 (25) | 916 (21) | 61 (16) | 1100 (21) | ||
| 2016 | 100 (20) | 933 (21) | 69 (18) | 1102 (21) | ||
| 2017 | 74 (15) | 908 (21) | 100 (26) | 1082 (21) | ||
| 2018 | 69 (14) | 939 (22) | 110 (29) | 1118 (21) | ||
| Birth month, n (%) | .07 | .17 | ||||
| January–March | 98 (20) | 1007 (23) | 79 (21) | 1184 (23) | ||
| April–June | 134 (27) | 964 (22) | 94 (25) | 1182 (23) | ||
| July–September | 137 (28) | 1186 (27) | 103 (27) | 1426 (27) | ||
| October–December | 125 (25) | 1192 (27) | 103 (27) | 1420 (27) | ||
a
Compares screened (pass and fail together) to not screened.
b
Row percentages presented for system. Column percentages otherwise.