Table 1 Clinical/demographic characteristics and differences in mean vitamin D by season of sampling, age categories, ethnicity & diagnoses
From: Clinical correlates of vitamin D deficiency in established psychosis
Total (n = 324) | Male (n = 193) | Female (n = 131) | |||||
|---|---|---|---|---|---|---|---|
Mean age (SD) | 43.8 (10.1) | 43.2 (10.1) | 44.7 (10.2) | ||||
Mean Duration of illness (SD) | 16.5 (10.4) | 17.1 (10.5) | 15.6 (10.4) | ||||
Mean Vitamin D levels | 12.4 (7.3) | 12.2 (7.0) | 12.6 (7.8) | ||||
Mean 25-OHD levels (ng/ml) ± SD | T | df | P Value | ||||
Age categories | Age ≤ 44 (n = 172) | Age > 44 (n = 152) | |||||
12.1 ± 7.1 | 12.7 ± 7.5 | −0.724 | 322 | 0.663 | |||
Diagnosis | Non affective psychosis (i.e. Schizophrenia) (n = 218) | Affective psychosis (Schizoaffective disorder, BPAD, psychotic depression) (n = 96) | |||||
11.5 ± 6.7 | 14.3 ± 8.1 | 3.099 | 312 | 0.061 | |||
Mean 25-OHD levels (ng/ml) ± SD/Vitamin D deficiency % | F | df | p Value | ||||
Season of sampling | Autumn (n = 96)/38 % | Winter (n = 70)/69 % | Spring (n = 70)/60 % | Summer (n = 88)/36 % | 12.977 | 3 | <0.001* |
14.3 ± 7.31,2 | 9.4 ± 5.9 | 9.8 ± 4.82 | 14.7 ± 8.51,2 | ||||
Ethnicity | Black (n = 104) | White (n = 183) | Asian (n = 12) | Mixed/Others (n = 24) | 2.707 | 3 | 0.008* |
10.6 ± 5.93 | 13.5 ± 8.13 | 10.7 ± 8.4 | 12.4 ± 4.9 | ||||