Table 1.
Comparison of the number (percentage) of patients and controls in three groups regarding the 25(OH)D serum values and the distribution of serum values of 25(OH)D according to age classification in patients and controls
| Variables | RA Patients n(%) | Healthy controls n(%) | |||||
|---|---|---|---|---|---|---|---|
| Serum value Of VitD (nmol/L) |
Age group | 69.96±23.75 | 76.62±42.9 | 73.46±43.65 | 45.5±39.05 | 50.94±30.21 | 44.41±21.0 |
| A:<40(n=80) | |||||||
| B:40≥age<60 (n=67) |
102.84±61.6 | 93.29±43.05 | 94.85±49.80 | 42.5±24.21 | 46.61±27.44 | 41.61±14.21 | |
| C:≥60(n=20 ) | 62.60±11.1 | 83.36±48.89 | 81.2±46.9 | 82.02±24.52 | 89.02±21.98 | 68.01±31.12 | |
| P value (One-Way ANOVA)* | 0.12 | 0.059 | |||||
| Serum value of Vit D (nmol/L) | 90.21±52.03 | 83.09±46.2 | 83.74±46.45 | 46.53±34.07 | 60.58±31.43 | 42.89±34.0 | |
| p value (t-test) | 0.63 | <0.001 (case & control group) |
0.08 | ||||
Tukey test:
P value between A& B groups, in patients: 0.08; in controls: 0.94
P value between A&C groups, in patients: 0.87; in controls: 0.04
P value between B&C groups in patients: 0.68; in controls: 0.03