Table 2.
Relationship between saturation levels, timing of 1st test and infant activity
| Total (n) | Median (range) | First saturation <95%, n (%) | Pathology (n) | No pathology, n (%) | P value | |
|---|---|---|---|---|---|---|
| Timing of testinga | ||||||
| <4 h | 6122 | 98 (77‐100) | 198 (3.2) | 25 | 173 (2.8) | .005 |
| 4‐12 h | 3092 | 99 (55‐100) | 78 (2.5) | 10 | 68 (2.2) | .4 |
| >12‐24 h | 2580 | 99 (85‐100) | 54 (2.1) | – | 54 (2.1) | .6 |
| >24 h | 3617b | 98 (78‐100) | 70 (1.9) | 1 | 69 (1.9) | d |
| Activityc | ||||||
| Asleep | 5365 | 99 (55‐100) | 144 (2.7) | 9 | 135 (2.5) | .002 |
| Breastfeeding | 2448 | 99 (77‐100) | 53 (2.2) | 4 | 49 (2.0) | .3 |
| Awake settled | 6408 | 99 (77‐100) | 122 (1.9) | 14 | 108 (1.7) | d |
| Awake unsettled | 1030 | 98 (81‐100) | 53 (5.1) | 1 | 52 (5.0) | <.001 |
a
Exclusions applied to 1233 due to insufficient data.
b
Six hundred and seventy‐four were screened >72 h after birth.
c
Exclusions applied to 1393 due to insufficient data. Infant activity not recorded for eight infants with pathology.
d
Reference for making individual comparison with other variables in relation to the proportion of readings <95% in the context of no pathology.