Frequency

Percentage (%)

z-score, p-value

History of diabetes mellitus in 1st degree relative

Z = 48.1

p = 0.000

Yes

1875

92.5

No

153

7.5

Total

2028

100

Social History

Smoke/drink/or both

Versus

Teetotaler

Z = 31.5

p < 0.001

Smokes but do not drink alcohol

15

0.7

Drinks Alcohol

1458

71.9

Drinks and smokes

321

15.8

Neither smokes nor drinks (Teetotaler)

234

11.5

Total

2028

100

Special groups and age at onset

<40 years

Versus

≥40 years

Z = 23.6

p < 0.001

Pregnant women

54

2.7

Children < 18 years

6

0.3

<40 years (excluding children and women)

447

22

≥40 years

1521

75

Total

2028

100