Table 2.
Correlation coefficients between age and calcium level at first visit.
| Dataset | n | Calcium | Alb-adj ca | ||
|---|---|---|---|---|---|
|
|
|
||||
| r | p | r | p | ||
| InCHIANTI | 1305 | −0.073 | 0.008 | 0.129 | <0.001 |
| WHAS | 1189 | −0.115 | <0.001 | −0.029 | 0.32 |
| WHAS I | 766 | −0.063 | 0.08 | −0.017 | 0.64 |
| WHAS II | 423 | −0.029 | 0.55 | −0.030 | 0.54 |
| BLSA | 1242 | −0.126 | <0.001 | 0.036 | 0.21 |
| All | 3736 | −0.092 | <0.001 | 0.024 | 0.14 |
Unadjusted calcium and albumin-adjusted calcium (alb-adj ca) variables were centered at zero and divided by their standard deviation such that mean was 0 and standard deviation 1. Significant correlation coefficients are indicated in bold.