Table 3 Referrals received by DVA service providers from general practices—incident rate ratios (IRR) with sessions’ delivery
|  | A (n = 31) | B (n = 30) | C (n = 32) | D (n = 23) | E (n = 34) | |||||
|---|---|---|---|---|---|---|---|---|---|---|
IRR (95% CI) | p | IRR (95% CI) | p | IRR (95% CI) | p | IRR (95% CI) | p | IRR (95%) | p | |
Underlying time trend (IRR per day) | 1.00 (0.99, 1.00) | 0.157 | 1.00 (0.99, 1.01) | 0.100 | 0.99 (0.99, 1.00) | 0.524 | 0.99 (0.99, 1.00) | 0.921 | 1.00 (0.98, 1.02) | 0.681 |
Average effect of session delivery | 12.82 (7.51, 21.88) | < 0.001 | 37.92 (10.36, 138.82) | < 0.001 | 86.93 (27.81, 271.73) | < 0.001 | 30.83 (9.82, 96.76) | < 0.001 | 0.95 (0.13, 6.84) | 0.959 |
Change in gradient following session delivery | 0.99 (0.998, 0.999) | 0.026 | 0.99 (0.98, 0.99) | 0.99 | 1.00 (0.99, 1.00) | 0.853 | 0.99 (0.99, 1.00) | 0.663 | 0.99 (0.98, 1.02) | 0.675 |