Table 4 Short-term (27 days) Spearman’s rank correlation coefficients of changes in PGA with the changes in the geomagnetic indices in the same period (first column) and of the changes in PGA in the current period with the changes in the geomagnetic indices in the previous period (second column)
From: Systemic lupus Erythematosus and geomagnetic disturbances: a time series analysis
| ΔPGAt | ΔPGAt | ||
|---|---|---|---|
| ΔRt | −0.5% | ΔRt − 1 | − 11.7%* |
| ΔAPt | −6.1% | ΔAPt − 1 | 1.6% |
| ΔF10.7t | −1.0% | ΔF10.7t − 1 | − 8.0% |
| ΔAUt | − 7.1% | ΔAUt − 1 | 4.7% |
| ΔPFt | − 6.1% | ΔPFt − 1 | 5.8% |