CDRI : Cancer Data Registry of Idaho

Table 3

Geographic Trends for pediatric leukemias, Idaho, 1982-1996

Geography	Incidence		All Cases			Male Cases			Female Cases
	Rate	Rank	Observed	Expected	P-Value	Observed	Expected	P-Value	Observed	Expected	P-Value
State of Idaho	45.96	-	189	-	-	107	-	-	82	-	-
Health District 1	42.21	(5)	20	21.8	0.810	14	12.2	0.686	6	9.5	0.323
Health District 2	30.53	(7)	9	13.5	0.265	2	7.7	0.036<	7	5.9	0.753
Health District 3	45.88	(4)	26	26.0	1.000	17	14.8	0.634	9	11.2	0.629
Health District 4	50.89	(2)	46	41.5	0.529	26	23.6	0.668	20	18.0	0.696
Health District 5	50.24	(3)	29	26.5	0.681	16	15.0	0.859	13	11.5	0.745
Health District 6	56.08	(1)	37	30.3	0.264	23	17.1	0.201	14	13.2	0.897
Health District 7	34.58	(6)	22	29.2	0.205	9	16.7	0.062	13	12.6	0.981
Ada	53.10	(13)	41	35.5	0.395	23	20.1	0.573	18	15.4	0.571
Adams	0.00	(38)	-	0.6	1.000	-	0.3	1.000	-	0.2	1.000
Bannock	66.28	(8)	19	13.2	0.154	10	7.5	0.442	9	5.7	0.246
Bear Lake	31.52	(26)	1	1.5	1.000	1	0.8	1.000	-	0.6	1.000
Benewah	32.10	(25)	1	1.4	1.000	1	0.8	1.000	-	0.6	1.000
Bingham	41.47	(20)	8	8.9	0.947	5	5.0	1.000	3	3.9	0.921
Blaine	42.19	(19)	2	2.2	1.000	1	1.2	1.000	1	0.9	1.000
Boise	0.00	(38)	-	0.6	1.000	-	0.4	1.000	-	0.3	1.000
Bonner	49.43	(16)	5	4.6	0.992	4	2.6	0.514	1	2.1	0.769
Bonneville	20.94	(30)	7	15.4	0.029<	2	8.7	0.015<	5	6.6	0.705
Boundary	59.78	(12)	2	1.5	0.909	1	0.9	1.000	1	0.7	0.977
Butte	147.67	(1)	2	0.6	0.259	1	0.3	0.585	1	0.3	0.483
Camas	0.00	(38)	-	0.4	1.000	-	0.1	1.000	-	0.0	1.000
Canyon	50.82	(15)	19	17.2	0.723	12	9.8	0.553	7	7.4	1.000
Caribou	80.47	(6)	3	1.7	0.493	2	1.0	0.501	1	0.8	1.000
Cassia	41.25	(21)	4	4.5	1.000	3	2.5	0.935	1	1.9	0.860
Clark	0.00	(38)	-	0.2	1.000	-	0.1	1.000	-	0.1	1.000
Clearwater	33.56	(22)	1	1.4	1.000	-	0.8	0.920	1	0.6	0.894
Custer	0.00	(38)	-	0.8	0.903	-	0.4	1.000	-	0.3	1.000
Elmore	52.74	(14)	5	4.4	0.881	3	2.5	0.900	2	1.9	1.000
Franklin	61.79	(9)	3	2.2	0.771	3	1.3	0.274	-	1.0	0.769
Fremont	0.00	(38)	-	2.4	0.176	-	1.4	0.502	-	1.0	0.701
Gem	90.46	(5)	4	2.0	0.297	4	1.2	0.059	-	0.9	0.829
Gooding	21.49	(29)	1	2.1	0.740	1	1.2	1.000	-	0.9	0.776
Idaho	0.00	(38)	-	2.3	0.204	-	1.3	0.563	-	1.0	0.726
Jefferson	68.15	(7)	6	4.0	0.444	3	2.3	0.800	3	1.8	0.518
Jerome	90.73	(4)	6	3.0	0.176	3	1.7	0.496	3	1.3	0.295
Kootenai	23.32	(28)	6	11.8	0.101	5	6.7	0.691	1	5.2	0.071
Latah	32.40	(24)	3	4.3	0.770	1	2.4	0.618	2	1.9	1.000
Lemhi	113.57	(3)	3	1.2	0.247	2	0.7	0.293	1	0.5	0.835
Lewis	0.00	(38)	-	0.6	1.000	-	0.4	1.000	-	0.3	1.000
Lincoln	0.00	(38)	-	0.6	1.000	-	0.4	1.000	-	0.3	1.000
Madison	61.78	(10)	6	4.5	0.582	2	2.6	1.000	4	1.9	0.241
Minidoka	32.90	(23)	3	4.2	0.794	1	2.3	0.654	2	1.9	1.000
Nez Perce	45.79	(17)	5	5.0	1.000	1	2.8	0.446	4	2.2	0.350
Oneida	0.00	(38)	-	0.7	0.947	-	0.4	1.000	-	0.3	1.000
Owyhee	0.00	(38)	-	1.7	0.374	-	1.0	0.766	-	0.7	0.975
Payette	44.89	(18)	3	3.1	1.000	1	1.8	0.951	2	1.3	0.756
Power	30.51	(27)	1	1.5	1.000	1	0.8	1.000	-	0.7	1.000
Shoshone	118.29	(2)	6	2.3	0.063	3	1.3	0.304	3	1.0	0.157
Teton	0.00	(38)	-	0.8	0.919	-	0.4	1.000	-	0.3	1.000
Twin Falls	61.31	(11)	13	9.7	0.370	7	5.5	0.628	6	4.2	0.509
Valley	0.00	(38)	-	1.1	0.677	-	0.6	1.000	-	0.5	1.00
Washington	0.00	(38)	-	1.5	0.443	-	0.8	0.865	-	0.7	1.000

Notes:

Incidence rates are expressed per 1,000,000 population.

The incidence rate for the state of Idaho is age adjusted to the standard 1970 U.S. population using the direct method.

The incidence rates for the other geographic areas are the products of the standardized incidence ratios and the state age-adjusted rate.

Expected cases are based upon age and sex-specific rates for the state of Idaho (compare to observed).

P-Values compare observed and expected cases, are two tailed, based upon the Poisson probability distribution.

"<" denotes significantly fewer cases observed than expected, ">" denotes significantly more cases observed than expected (p=.05).

Statistical Note:

Rates based upon 10 or fewer cases (numerator) should be interpreted with caution.

Study
Table 1
Table 2
Table 3
Table 4
Table 5
Appendix