Table 2.
Correlations Between Log10-Transformed Serum Hs-CRP and Demographic, Clinical, and Laboratory Variables in Catatonic and Non-Catatonic Patients.
| Lg (hs-CRP) | Catatonic (n = 51) | Non-catatonic (n = 55) | ||
|---|---|---|---|---|
| r | P-value* | r | P-value* | |
| Men | .181 | .203 | .057 | .680 |
| Diagnosis of schizophrenia | .039 | .783 | −.086 | .534 |
| Currently smoking | .024 | .867 | −.019 | .892 |
| Age | −.008 | .954 | −.152 | .269 |
| Body mass index | .350 | .012 | −.044 | .752 |
| BFCRSa | .276 | .0497 | −.251 | .065 |
| Lg (DOI) | .197 | .283 | −.157 | .254 |
| Lg (CK) | .414 | .003 | .028 | .837 |
| Lg (Cortisol) | .326 | .020 | .045 | .743 |
| Lg (ACTH) | −.308 | .028 | .006 | .965 |
| Lg (IgG) | −.115 | .423 | .002 | .989 |
| Lg (C3) | .077 | .591 | .109 | .429 |
| Lg (C4) | .341 | .014 | .040 | .769 |
Note: Lg, log10 transformed; DOI, duration of illness; BFCRS, Bush-Francis catatonia rating scale; CK, creatine kinase; ACTH, adrenocorticotropic hormone; IgG, immunoglobulin G; C3, complement component 3; C4, complement component 4; OLZeq, olanzapine equivalent dose; hs-CRP, high sensitivity C-reactive protein.
aAll skewed data were log-transformed except for BFCRS in non-catatonic group. In non-catatonic group, 39 individuals were scored 0 on BFCRS, which made log-transformation impossible. In such case, Spearman’s rank correlation was used.
*Bonferroni adjustment to a critical α of P < .0038 for the correlation analyses between lg (hs-CRP) and the 13 variables.