Table 6. Regions of Mozambique: hepatocellular carcinoma CIRs, ASIRs and significance, 1989–96.
| District | Popln.a | CIR | Obs. | Exp.b | ASIRc | Signif.d |
|---|---|---|---|---|---|---|
| Bilene | 27 350 | 3.7 | 1 | 3.3 | 30.6 | |
| Vilanculos | 23 766 | 4.2 | 1 | 2.8 | 35.3 | |
| Xai-Xai | 63 523 | 4.7 | 3 | 7.6 | 39.6 | −− |
| Chibuto | 34 359 | 8.7 | 3 | 4.1 | 73.2 | |
| Guijá | 29 550 | 10.2 | 3 | 3.5 | 85.1 | |
| Maputo | 64 547 | 9.3 | 6 | 9.8 | 91.9 | |
| Matola | 17 533 | 17.1 | 3 | |||
| Panda | 30 140 | 19.9 | 6 | 3.6 | 171.2 | |
| Homoine | ||||||
| Inharrime | ||||||
| Manhica | 22 547 | 22.2 | 5 | 2.7 | 185.8 | |
| Magude | ||||||
| Inhambane | 36 017 | 33.3 | 12 | 4.3 | 279.2 | ++ |
| Murrumbene | ||||||
| Massinga | ||||||
| Zavala | 34 181 | 41.0 | 14 | 4.1 | 343.2 | ++ |
| Muchopes | ||||||
| District not known | 8 | |||||
| Mozambique | 383 513 | 16.9 | 65 | 45.8e | 141.9f | ++ |
a
Population in man-years of labour employment.
b
Expected number calculated at Mozambique truncated age-standardised incidence ratio (ASIR) 141.9.
c
Local ASIR for the district.
d
Observed greater than expected value at ++P<0.01 by Poisson distribution. Observed less than expected value at −−P<0.05.
e
Expected total calculated on all miners' rate.
f
ASIR calculated on all miners as 100.