Incident rate ratios (and the 95% CI) from the Poisson or negative binomial models of suicide in females resident in the North West Government Office Region at ward level
| Explanatory variable | Quartile 1 | Quartile 2 | Quartile 3 | Quartile 4 | Linear model |
|---|---|---|---|---|---|
| Females, 10–29 years | |||||
| Income | a | ||||
| Before clustering | 1 | 0.75 (0.47 to 1.19) | 0.49 (0.29 to 0.86) | 0.57 (0.29 to 1.08) | 0.78 (0.64 to 0.95) |
| After clustering | 1 | 0.75 (0.47 to 1.19) | 0.49 (0.30 to 0.82) | 0.57 (0.32 to 1.01) | 0.78 (0.65 to 0.93) |
| Employment | |||||
| Before clustering | 1 | 0.52 (0.31 to 0.88) | 0.71 (0.43 to 1.15) | 0.52 (0.27 to 0.99) | 0.82 (0.68 to 0.99) |
| After clustering | 1 | 0.52 (0.29 to 0.92) | 0.71 (0.48 to 1.04) | 0.52 (0.27 to 1.01) | 0.82 (0.69 to 0.99) |
| Females, 30–49 years | |||||
| Income | |||||
| Before clustering | 1 | 0.59 (0.43 to 0.81) | 0.36 (0.24 to 0.53) | 0.31 (0.18 to 0.52) | 0.64 (0.55 to 0.74) |
| After clustering | 1 | 0.59 (0.40 to 0.87) | 0.36 (0.25 to 0.52) | 0.31 (0.17 to 0.57) | 0.64 (0.54 to 0.75) |
| Employment | |||||
| Before clustering | 1 | 0.53 (0.38 to 0.74) | 0.47 (0.32 to 0.68) | 0.28 (0.16 to 0.48) | 0.66 (0.57 to 0.76) |
| After clustering | 1 | 0.53 (0.37 to 0.75) | 0.47 (0.32 to 0.69) | 0.28 (0.16 to 0.51) | 0.66 (0.56 to 0.78) |
| Females ⩾50 years | |||||
| Income | |||||
| Before clustering | 1 | 1.15 (0.83 to 1.57) | 1.06 (0.76 to 1.49) | 0.81 (0.52 to 1.26) | 0.96 (0.85 to 1.08) |
| After clustering | 1 | 1.15 (0.93 to 1.41) | 1.06 (0.82 to 1.38) | 0.81 (0.56 to 1.16) | 0.96 (0.88 to 1.04) |
| Employment | |||||
| Before clustering | 1 | 1.35 (0.99 to 1.86) | 0.99 (0.70 to 1.41) | 0.94 (0.62 to 1.44) | 0.97 (0.86 to 1.09) |
| After clustering | 1 | 1.35 (1.01 to 1.86) | 0.99 (0.78 to 1.31) | 0.94 (0.69 to 1.27) | 0.79 (0.89 to 1.05) |