Table 1 NHI and Census populations by demographic sub-groups, 2006
From: Novel use of three administrative datasets to establish a cohort for environmental health research
NZ resident population 7 March 2006 | NHIcensus | NHI overcount rate ratio | |||
|---|---|---|---|---|---|
NHI | Census | Poisson regression all variables, 95% CI | |||
Total | 4,942,132 | 4,027,941 | 1.23 | ||
Sex | |||||
Male | 2,404,629 | 1,965,597 | 1.22 | Reference | |
Female | 2,537,503 | 2,062,344 | 1.23 | 0.01 | (0.01-0.02) |
Age group | |||||
0-4 yrs | 308,947 | 275,079 | 1.12 | Reference | |
5-14 yrs | 727,676 | 592,497 | 1.23 | 0.03 | (0.03-0.03) |
15-24 yrs | 687,321 | 571,176 | 1.20 | 0.00 | (0.00-0.01) |
25-34 yrs | 713,075 | 519,015 | 1.37 | 0.05 | (0.05-0.06) |
35-44 yrs | 789,418 | 615,258 | 1.28 | 0.03 | (0.03-0.04) |
45-54 yrs | 651,461 | 546,138 | 1.19 | 0.00 | (0.00-0.01) |
55-64 yrs | 474,201 | 413,175 | 1.15 | −0.02 | (−0.02--0.01) |
65-74 yrs | 300,119 | 265,491 | 1.13 | −0.03 | (−0.04--0.03) |
75-84 yrs | 199,783 | 173,448 | 1.15 | −0.04 | (−0.04--0.03) |
85-89 yrs | 50,314 | 38,124 | 1.32 | 0.01 | (0.00-0.02) |
90+ yrs | 39,817 | 18,540 | 2.15 | 0.17 | (0.16-0.18) |
Ethnic group | |||||
Non-MPA | 3,197,120 | 2,727,771 | 1.17 | Reference | |
NZ Māori | 559,112 | 565,335 | 0.99 | −0.15 | (−0.16--0.15) |
Pacific Peoples | 312,441 | 265,965 | 1.17 | −0.10 | (−0.11--0.10) |
Asian Peoples | 299,147 | 354,573 | 0.84 | −0.19 | (−0.19--0.18) |
Unknown | 599,254 | 167,799 | 3.57 | 0.33 | (0.33-0.34) |
NZDep2006 quintile | |||||
1-2 | 724,315 | 825,606 | 0.88 | Reference | |
3-4 | 795,048 | 810,843 | 0.98 | 0.06 | (0.06-0.06) |
5-6 | 901,914 | 797,037 | 1.13 | 0.13 | (0.13-0.14) |
7-8 | 1,074,515 | 791,394 | 1.36 | 0.22 | (0.22-0.22) |
9-10 | 1,178,584 | 798,162 | 1.48 | 0.27 | (0.27-0.27) |
Unknown | 267,756 | 4,899 | 54.66 | 0.74 | (0.73-0.74) |