
% survey respondents

% SmartHealth 2017 population

% WDHB 2013 census population


Gender

Female

64.3^{†}

63.7

52.3

Male

35.1

36.3

47.7

Other/declined

0.6

0.0

0.0

Age^{a}

18–29 years

7.1

20.0

18.0

30–49 years

20.7

29.7

35.3

50–69 years

44.8^{††}

34.5

32.7

70+ years

26.9^{††}

15.1

14.0

Declined

0.5

0.0

0.0

Education^{b}

None

0.8

–

0.0

Primary school

0.3

–

16.2

Secondary school

32.8

–

43.9

Vocational school

9.6

–

21.7

College/university or higher

55.7^{†††}

–

18.2

Declined

0.8

–

0.0

Ethnicity

European

75.9

69.3

71.5

Māori

16.7

18.4

16.7

Pacific peoples

1.7

1.9

2.8

Asian

2.4

6.2

6.6

Middle Eastern/Latin American/African

1.3

–

0.8

Other/declined

2.0

4.2

1.6

 ^{a}Age percentage categories for the SmartHealth 2017 population add up to slightly less than 100% since minors are allowed to enroll in SmartHealth, but were not allowed to take the survey. Age percentage categories for the WDHB 2013 census population were calculated for individuals 20 years or older
 ^{b}Educationlevel data were not available for the SmartHealth 2017 population. Education percentage categories for the WDHB 2013 census population were calculated for individuals 20 years or older
 ^{†}The 95% confidence interval estimate of the difference between the female proportion of survey respondents and the female proportion of the WDHB 2013 census population is 9.9–14.9% (χ^{2} = 87.9, df = 1, p < 0.001)
 ^{††}The 95% confidence interval estimate of the difference between the older proportion of survey respondents (≥ 50 years of age) and the older proportion of the WDHB 2013 census population is 23.1–27.7% (χ^{2} = 366.3, df = 1, p < 0.001)
 ^{†††}The 95% confidence interval estimate of the difference between the college educated proportion of survey respondents (college/university education or higher) and the college educated proportion of the WDHB 2013 census population is 35.3–40.5% (χ^{2} = 1341.2, df = 1, p < 0.001)