Table 2.
Sample size and freezer space of the SBC biobank.
| Projects | Number of aliquots | Total | ||||
|---|---|---|---|---|---|---|
 |
 |
 |
 |
 |
||
| P1c | ||||||
| Blood | 16 | 0 | 0 | 1 | 0 | 17 |
| Urine | 0 | 0 | 2 | 0 | 8 | 10 |
| P2c | ||||||
| Blood | 16 | 0 | 0 | 1 | 0 | 17 |
| Urine | 0 | 0 | 2 | 0 | 8 | 10 |
| P3c | ||||||
| Blood | 16 | 0 | 0 | 1 | 0 | 17 |
| Delivery | ||||||
| Blood | 30 | 0 | 0 | 3 | 0 | 33 |
| Placenta | 0 | 8 | 0 | 0 | 0 | 8 |
| Cord | 0 | 2 | 0 | 0 | 0 | 2 |
| Father's buccal mucosa | 1 | 0 | 0 | 0 | 0 | 1 |
| 24-Month | ||||||
| Blood | 4 | 0 | 0 | 1 | 0 | 5 |
| Urine | 0 | 0 | 0 | 0 | 2 | 2 |
| Sample size of each familya | 83 | 10 | 4 | 7 | 18 | 122 |
| Sample size of 4,000 families | 332,000 | 40,000 | 16,000 | 28,000 | 72,000 | 488,000 |
| Number of freezer boxes | 4,099 (9 × 9) | 1,600 (5 × 5) | 327 (7 × 7) | 571 (7 × 7) | 2,000 (6 × 6) | 8,597 |
| Number of stainless steel racks | 205 (4 × 5) | 80 (4 × 5) | 41 (4 × 2) | 71 (4 × 2) | 250 (4 × 2) | 647 |
| Number of mechanical freezers | 8.54 (6 × 4) | 3.33 (6 × 4) | –b | 3.55 (5 × 4) | 12.5 (5 × 4) | 28 |
a
This sample size refers only to samples that require freezer boxes, stainless steel racks, or mechanical freezers. Filter paper (stored at 20°C walk-in environmental storage systems) which collected heel blood samples of newborns and mother's hair (stored at room temperature) which collected 42-day old were not included in this part, but included in the consumables investment.
b
This part of the sample does not occupy the mechanical freezer space.
c
P1, first trimester; P2, second trimester; P3, third trimester.