Trends in seasonality ratio across quintiles of population density and Townsend score
| Population density (rurality) | ||||||
|---|---|---|---|---|---|---|
| Quintiles of ward population density | 1 | 2 | 3 | 4 | 5 | |
| (range of population/km2) | (8.07 to 52.87) | (52.88 to 142.40) | (142.41 to 749.71) | (749.72 to 2661.41) | (2661.42 to 11974.46) | |
| Number of wards | 234 | 234 | 234 | 234 | 233 | |
| Seasonality ratio | 116.32 | 117.02 | 117.10 | 115.90 | 116.42 | Ptrend 0.3 |
| (95% confidence intervals)* | (112.42 to 120.36) | (113.82 to 120.30) | (114.53 to 119.73) | (113.73 to 118.10) | (114.48 to 118.39) | |
| Area deprivation | ||||||
|---|---|---|---|---|---|---|
| *Seasonality ratio: mean age sex directly standardised mortality rate in the winter months (December to March) divided by mean age sex directly standardised mortality rate in the non-winter months, expressed as a percentage. Data aggregated over five years 1994–98; †higher scores (highest quintiles) indicate greater deprivation. | ||||||
| Quintiles of Townsend deprivation score | 1 | 2 | 3 | 4 | 5 | |
| (range of Townsend score)† | (−6.85 to −2.98) | (−2.97 to −1.73) | (−1.72 to −0.65) | (−0.64 to 0.70) | (0.71 to 9.24) | |
| Number of wards | 234 | 234 | 234 | 233 | 234 | |
| Seasonality ratio | 115.28 | 116.65 | 118.04 | 116.50 | 115.87 | Ptrend 0.6 |
| (95% confidence intervals)* | (112.48 to 118.15) | (113.76 to 119.60) | (115.31 to 120.84) | (114.10 to 118.95) | (113.83 to 117.95) | |