Table.
Relation between socioeconomic status and tumour stage in patients with breast, ovarian, colorectal, and lung cancer. Values are numbers (percentages)
| Deprivation group*
|
Total | |||
|---|---|---|---|---|
| Affluent | Middle | Deprived | ||
| Breast cancer† | n=548 | n=1605 | n=364 | n=2517 |
| Tumour size (mm): | ||||
| 0-20 | 271 (49.5) | 730 (45.5) | 166 (45.6) | 1167 (46.4) |
| 21-50 | 124 (22.6) | 409 (25.5) | 109 (29.9) | 642 (25.5) |
| >50 | 14 (2.6) | 49 (3.1) | 13 (3.6) | 76 (3.0) |
| Unknown | 139 (25.4) | 417 (26.0) | 76 (20.9) | 632 (25.1) |
| Significance | χ2=9.89, df=6, P=0.13 | |||
| Node status: | ||||
| Positive | 144 (26.3) | 467 (29.1) | 111 (30.5) | 722 (28.7) |
| Inadequate negative sample‡ | 58 (10.6) | 178 (11.1) | 31 (8.5) | 267 (10.6) |
| Negative§ | 208 (38.0) | 523 (32.6) | 128 (35.2) | 859 (34.1) |
| Unknown | 138 (25.2) | 437 (27.2) | 94 (25.8) | 669 (26.6) |
| Significance | χ2=7.79, df=6, P=0.25 | |||
| Metastatic status at presentation | ||||
| M0 | 517 (94.3) | 1492 (93.0) | 331 (90.9) | 2340 (93.0) |
| M1 | 31 (5.7) | 113 (7.0) | 33 (9.1) | 177 (7.0) |
| Significance | χ2=3.89, df=2, P=0.14 | |||
| Colorectal cancer† | n=590 | n=1734 | n=453 | n=2777 |
| Dukes' stage: | ||||
| A | 61 (10.3) | 149 (8.6 ) | 38 (8.4) | 248 (8.9) |
| B | 202 (34.2) | 576 (33.2) | 156 (34.4) | 934 (33.6) |
| C | 130 (22.0) | 415 (23.9) | 97 (21.4) | 642 (23.1) |
| ‘D’ | 117 (19.8) | 377 (21.7) | 101 (22.3) | 595 (21.4) |
| Unknown | 80 (13.6) | 217 (12.5) | 61 (13.5) | 358 (12.9) |
| Significance | χ2=4.74, df=8, P=0.79 | |||
| Ovarian cancer† | n=304 | n=856 | n=226 | n=1386 |
| Fédération Internationale de Gynécologie et d'Obstétrique stage: | ||||
| I | 73 (24.0) | 191 (22.3) | 33 (14.6) | 297 (21.4) |
| II | 30 (9.9) | 77 (9.0) | 14 (6.2) | 121 (8.7) |
| III | 126 (41.4) | 388 (45.3) | 108 (47.8) | 622 (44.9) |
| IV | 51 (16.8) | 131 (15.3) | 44 (19.5) | 226 (16.3) |
| Unknown | 24 (7.9) | 69 (8.1) | 27 (11.9) | 120 (8.7) |
| Significance | χ2=14.96, df=8, P=0.06 | |||
| Lung cancer | n=534 | n=2371 | n=950 | n=3855 |
| Clinical stage: | ||||
| Localised | 152 (28.5) | 758 (32.0) | 342 (36.0) | 1252 (32.5) |
| Regional | 134 (25.1) | 628 (26.5) | 214 (22.5) | 976 (25.3) |
| Distant | 183 (34.3) | 726 (30.6) | 295 (31.1) | 1204 (31.2) |
| Unknown | 65 (12.2) | 259 (10.9) | 99 (10.4) | 423 (11.0) |
| Significance | χ2=13.52, df=6, P=0.04 | |||
*
Patients were assigned to a 1991 census derived Carstairs deprivation category based on their postcode sector of residence at diagnosis. Carstairs deprivation categories: 1 and 2, affluent; 3, 4, and 5, middle; 6 and 7, deprived.
†
Deprivation score could not be assigned for one case.
‡
Represents 1, 2, 3, or unknown number of nodes sampled, all negative.
§
Represents 4 or more nodes sampled or axillary clearance, all negative.