Table 1 Socio-demographic and clinical distribution of the study population
From: Socioeconomic variation in survival from childhood leukaemia in northern England, 1968–2010
Variable | N (% of total) |
|---|---|
Sex | |
Female | 442 (44) |
Male | 565 (56) |
Age at diagnosis (years) | |
0–1 | 139 (14) |
2–4 | 386 (38) |
5–9 | 283 (28) |
10–14 | 199 (20) |
Calendar period of diagnosis | |
1968–1977 | 262 (26) |
1978–1987 | 231 (23) |
1988–1997 | 237 (24) |
1998–2010 | 277 (27) |
Paternal social class | |
I/II | 170 (17) |
IIIN/M | 467 (46) |
IV/V | 189 (19) |
Unknown | 181 (18) |
White blood cell count per mm 3 | |
<50 000 cells | 86 (8) |
>50 000 cells | 701 (70) |
Missing data | 220 (22) |
Diagnostic type | |
Acute lymphoblastic leukaemia | 823 (82) |
Acute non-lymphocytic leukaemia | 144 (14) |
Chronic myeloid leukemia | 17 (2) |
Others specified | 11 (1) |
Unspecified | 12 (1) |
Total | 1007 |
