Distribution of cases of Neisseria gonorrhoeae by Mosaic residential category, compared with the distribution of the general population of the city
| Mosaic category | All cases (n=578) | Aged under 25 years (n=340) | ||||
|---|---|---|---|---|---|---|
| N (%) | Expected N (%)* | Standardised residual† | N (%) | Expected N* | Standardised residual‡ | |
| B Residents of small and mid-sized towns with strong local roots | 5 (0.86) | 11.2 (1.94) | 7.69 | 4 (1.2) | 6.6 (1.94) | 1.02 |
| C Wealthy people living in the most sought after neighbourhoods | 3 (0.52) | 9.7 (1.67) | 14.96 | 3 (0.9) | 5.7 (1.67) | 1.26 |
| D Successful professionals living in suburban or semirural homes | 7 (1.2) | 14.4 (2.49) | 7.82 | 5 (1.5) | 8.5 (2.49) | 1.42 |
| E Middle income families living in moderate suburban semis | 55 (9.45) | 61.8 (10.69) | 0.84 | 35 (10.3) | 36.3 (10.69) | 0.05 |
| F Couples with young children in comfortable modern housing | 6 (1.03) | 11.9 (2.05) | 5.8 | 2 (0.6) | 7 (2.05) | 3.54 |
| G Young, well-educated city dwellers | 66 (11.34) | 77.7 (13.45) | 2.07 | 33 (9.7) | 45.7 (13.45) | 3.55 |
| H Couples and young singles in small modern starter homes | 5 (0.86) | 14.5 (2.5) | 18.05 | 3 (0.9) | 8.5 (2.5) | 3.56 |
| I Lower income workers in urban terraces in often diverse areas | 66 (11.34) | 60.2 (10.42) | 0.51 | 39 (11.5) | 35.4 (10.42) | 0.36 |
| J Owner occupiers in older-style housing in ex-industrial areas | 23 (3.95) | 26.8 (4.63) | 0.63 | 14 (4.1) | 15.7 (4.63) | 0.19 |
| K Residents with sufficient incomes in right-to-buy social houses | 48 (8.25) | 43.3 (7.49) | 0.46 | 23 (6.8) | 25.5 (7.49) | 0.24 |
| M Elderly people reliant on state support | 23 (3.95) | 29.8 (5.16) | 2.01 | 9 (2.6) | 17.5 (5.16) | 4.16 |
| N Young people renting flats in high density social housing | 76 (13.06) | 50.9 (8.8) | 8.29 | 35 (10.3) | 29.9 (8.8) | 0.86 |
| O Families in low-rise social housing with high levels of benefit need | 188 (32.3) | 155.5 (26.9) | 5.62 | 128 (37.6) | 91.5 (26.9) | 14.59 |
| U Unclassified | 7 (1.2) | 10.4 (1.8) | 1.65 | 7 (2.1) | 6.1 (1.8) | 0.13 |
*Expected number of cases in each Mosaic category if cases were proportionally distributed to the general population distribution in the city where the clinic is located. Data taken from Upton et al12 which cites the Experian Mosaic Public Sector Tool.
†χ2 Goodness of fit of observed distribution (cases of gonorrhoea) against expected (general population)=46.9; df=13, p<0.001.
‡χ2 Goodness of fit of observed distribution (cases of gonorrhoea in those aged under 25 years) against expected (general population)=34.9, df=13, p=0.001.