Table 3: Demographic characteristics of the Vascular Risk in Adult New Zealanders 2006 (VARIANZ 2006) baseline population compared to the 2006 New Zealand Census Estimated Resident (ER) population.
*Total excludes 26 910 people who had a health contact in 2006 but died before 31 December 2006 and 5 299 people who were not New Zealand residents at 31 December 2006.
#Male and female totals exclude 139 people whose sex could not be identified in the national datasets
^The 2006 VARIANZ study population identified 454 more individuals aged 85 years or older than the 2006 New Zealand Census Estimated Resident population, potentially due to the high proportion of this age group who utilise health services coupled with underestimation of the Census ER population aged 85 years and over as a result of census undercount.
Ł2006 New Zealand Census ER population figures for Maori, Pacific, Asian and Other groups are sourced from the 2006 New Zealand Estimated Resident Population supplied by Stats New Zealand. Estimates for Chinese and Indian groups were not available from Stats New Zealand and were subsequently sourced from the 2006 New Zealand Estimated Resident Population that was constructed by Counties Manukau District Health Board (CMDHB) in Auckland, New Zealand. If an individual identified with more than one ethnic group, CMDHB assigned a single prioritised ethnic group using the following prioritisation order: Maori; Pacific, South-East Asian, Chinese, Indian, Other Asian, Other. Due to rounding, the CMDHB 2006 New Zealand Census Estimated Resident Population aged 20 years or older comprised 2 982 335 individuals.
| Demographic | VARIANZ 2006 baseline population n (%) | 2006 New Zealand Census ER population n (%) | Difference between VARIANZ 2006 and 2006 Census ER populations n (% of Census ER) |
|---|---|---|---|
| Total | 2 543 577* | 2 982 740 | 439 163 (15%) |
| Sex: | |||
| Male | 1 140 283# (45%) | 1 433 980 (48%) | 293 697 (20%) |
| Female | 1 403 155# (55%) | 1 548 760 (52%) | 145 605 ( 9%) |
| Age: | |||
| 20-34 years | 652 170 (26%) | 837 560 (28%) | 185 390 (22%) |
| 35-44 years | 521 108 (20%) | 635 050 (21%) | 113 942 (18%) |
| 45-54 years | 486 247 (19%) | 568 810 (19%) | 82 563 (15%) |
| 55-64 years | 389 470 (15%) | 429 670 (14%) | 40 200 ( 9%) |
| 65-74 years | 263 268 (10%) | 275 700 ( 9%) | 12 432 ( 5%) |
| 75-84 years | 172 720 ( 7%) | 177 780 ( 6%) | 5 060 ( 3%) |
| 85 years and over | 58 594 ( 2%) | 58 140 ( 2%) | -454 (0%)^ |
Ethnicity:Ł | |||
| Maori | 260 871 (10%) | 343 050 (12%) | 82 765 (24%) |
| Pacific | 121 642 ( 5%) | 159 520 ( 5%) | 37 878 (24%) |
| Asian | 165 689 ( 7%) | 284 960 (10%) | 119 271 (42%) |
| Chinese | 56 325 ( 2%) | 121 110 ( 4%) | 65 738 (54%) |
| Indian | 60 616 ( 2%) | 80 609 ( 3%) | 19 993 (25%) |
| Other | 1 995 377 (79%) | 2 195 210 (74%) | 199 833 ( 9%) |