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Change in receiving syringes based on seasonally segmented regression models considering the announcement of the start of Covid-19 in February 2020 in Iran
| Parameter | Coefficients | 95% CI | Standard Errors | P -Value | |
|---|---|---|---|---|---|
| Intercept | 632.55 | 556.53 | 708.56 | 38.11 | 0.00 |
| Baseline trend | -1.08 | -4.56 | 2.40 | 1.74 | 0.53 |
| Level change after the intervention | -601.01 | -706.39 | -495.62 | 52.84 | 0.00 |
| Trend change after the intervention | 23.42 | 18.49 | 28.35 | 2.47 | 0.00 |
