Table 3.
Ratios and 95 % confidence intervals of observed to expected K-function outlet densities at distances from schools, Christchurch, New Zealand, 1966–2006
| Distance from all schools | ||||||||
|---|---|---|---|---|---|---|---|---|
| 400 m | 800 m | 1200 m | 1600 m | |||||
| Food outlet category and year | Ratio | 95 % CI | Ratio | 95 % CI | Ratio | 95 % CI | Ratio | 95 % CI |
| Supermarkets/grocery stores | ||||||||
| 1966 | 2·2 | 1·8, 2·5 | 2·0 | 1·8, 2·2 | 1·9 | 1·7, 2·0 | 1·8 | 1·7, 1·9 |
| 1976 | 2·3 | 2·1, 2·4 | 2·3 | 1·9, 2·1 | 1·8 | 1·8, 1·9 | 1·7 | 1·7, 1·8 |
| 1986 | 2·2 | 1·9, 2·6 | 2·2 | 2·0, 2·3 | 1·8 | 1·7, 2·0 | 1·7 | 1·6, 1·8 |
| 1996 | 1·8 | 1·3, 2·4 | 2·0 | 1·7, 2·3 | 1·8 | 1·6, 2·0 | 1·6 | 1·5, 1·8 |
| 2006 | 2·1 | 0·4, 3·8 | 2·2 | 1·4, 3·1 | 2·1 | 1·5, 2·7 | 1·8 | 1·4, 2·3 |
| Fish shops/fast-food outlets | ||||||||
| 1966 | 2·5 | 2·4, 2·6 | 2·2 | 2·1, 2·2 | 1·9 | 1·9, 2·0 | 1·8 | 1·8, 1·9 |
| 1976 | 2·3 | 2·2, 2·3 | 2·3 | 2·0, 2·1 | 1·8 | 1·8, 1·8 | 1·8 | 1·7, 1·8 |
| 1986 | 2·1 | 2·0, 2·1 | 2·1 | 2·1, 2·1 | 1·8 | 1·8, 1·9 | 1·8 | 1·7, 1·8 |
| 1996 | 2·1 | 2·0, 2·1 | 1·9 | 1·8, 1·9 | 1·7 | 1·7, 1·7 | 1·6 | 1·6, 1·7 |
| 2006 | 2·4 | 1·6, 3·3 | 2·2 | 1·8, 2·6 | 1·9 | 1·6, 2·2 | 1·8 | 1·6, 2·0 |
| Convenience/fruit & vegetable stores | ||||||||
| 1966 | 2·3 | 2·3, 2·4 | 2·0 | 2·0, 2·1 | 2·0 | 1·9, 2·0 | 1·9 | 1·9, 1·9 |
| 1976 | 2·4 | 2·2, 2·5 | 2·4 | 2·0, 2·1 | 1·9 | 1·8, 1·9 | 1·8 | 1·8, 1·8 |
| 1986 | 2·5 | 2·3, 2·6 | 2·0 | 2·0, 2·1 | 1·8 | 1·8, 1·9 | 1·8 | 1·7, 1·8 |
| 1996 | 2·3 | 2·2, 2·4 | 1·8 | 1·8, 1·9 | 1·7 | 1·7, 1·7 | 1·7 | 1·6, 1·7 |
| 2006 | 2·3 | 2·2, 2·4 | 2·0 | 1·9, 2·1 | 1·8 | 1·8, 1·9 | 1·7 | 1·7, 1·8 |