Table 3.
Example statistics for randomized controlled trials on vitamin B12 intake and vitamin B12 status
|
Reference |
|
Observed univariate statistics |
|
|
Required statistics |
|
||||
|---|---|---|---|---|---|---|---|---|---|---|
| X0* | Type Y0 | Y0 | n | mX | mY | sY | bYX | se(bYX) | ||
| [16] |
intervention |
405 |
mean, SD |
379, 189 |
17 |
6.00 |
5.83 |
0.47 |
0.12 |
0.03 |
| |
control |
5 |
mean, SD |
211, 77 |
17 |
1.61 |
5.29 |
0.35 |
|
|
| [17] |
intervention |
505 |
med, IQR |
198, 158-271 |
20 |
6.22 |
5.29 |
0.40 |
0.13 |
0.04 |
| control | 5 | med, IQR | 110, 73-165 | 20 | 1.61 | 4.70 | 0.60 | |||
*) X0 represents the dose provided plus the dietary intake. When dietary intake of vitamin B12 was not reported 5 μg/day was added to the provided dose. The 5 μg/day was calculated as the average dietary intake from several studies.