Table 2.
Linear regression output on the predictors of serum retinol concentrations (μmol/L) among pregnant women in rural Sidama, Southern Ethiopia February 2011
| Independent variable | Unstandardized coefficient | t-statistic | p value |
| Constant | 0.481 | ||
| Maternal age (years) | -0.008 | -2.474 | 0.014 |
| Parity (0-9) | -0.036 | -3.343 | 0.001 |
| Gestational age (months) | -0.030 | -3.730 | 0.000 |
| Diet diversity level in the previous day (0-12) | 0.040 | 4.429 | 0.000 |
| Mid-upper arm-circumference (cm) | 0.018 | 2.515 | 0.012 |
| Consumed foods from animal source in the previous day (0=no, 1=yes) | 0.117 | 3.575 | 0.000 |
| CRP (0=Negative, 1=Positive) | -0.120 | -2.339 | 0.020 |
| Serum zinc concentration (in μmol/L) | 0.034 | 3.545 | 0.000 |