TABLE 1.
Sample Frequencies by Risk and Age Group
| Age Group | Low risk (% in this age group) |
Medium risk (% in this age group) |
High risk (% in this age group) |
Total (% of goal) |
Goal |
|---|---|---|---|---|---|
| PCA 34–35 wks* | 16 (18.6) | 30 (34.9) | 40 (46.5) | 86 | 100 |
| PCA 36–37 wks | 23 (28.4) | 27 (33.3) | 31 (38.3) | 81 | 100 |
| PCA 38–39 wks | 29 (34.1) | 30 (35.3) | 26 (30.6) | 85 | 100 |
| PCA 40–41 wks | 23 (24.0) | 30 (31.3) | 43 (44.8) | 96 | 100 |
| 2–3 wks AA** | 32 (33.0) | 27 (27.8) | 38 (39.2) | 97 | 100 |
| 4–5 wks AA | 35 (42.2) | 26 (31.2) | 22 (26.5) | 83 | 100 |
| 6–7 wks AA | 32 (36.0) | 21 (23.6) | 36 (40.4) | 89 | 100 |
| 8–9 wks AA | 30 (35.7) | 22 (26.2) | 32 (38.1) | 84 | 100 |
| 10–11 wks AA | 33 (46.5) | 21 (29.6) | 17 (23.9) | 71 | 100 |
| 12–13 wks AA | 23 (32.9) | 20 (28.6) | 27 (38.6) | 70 | 100 |
| 14–15 wks AA | 31 (46.3) | 18 (26.9) | 18 (26.9) | 67 | 100 |
| 16–17 wks AA | 36 (44.4) | 25 (30.9) | 20 (24.7) | 81 | 100 |
| Total (%) | 343 (34.6) | 297 (30) | 350 (35.4) | 990 (82.58) | 1200 |
*
wks PCA = postconceptional age in weeks
**
wks AA = post term age in weeks, adjusted for prematurity