1 = RYGB
2 = SG

1 = Malay
2 = Chinese
3 = Indian
4 = Others

1 = male
2 = female

0 = no
1 = yes

1 = Controlled
2 = Not controlled

1 = Mild
2 = Moderate
3 = Severe

1 = Complete remission
2 = partial remission
3 = improvement
4 = Unchanged

0 = No improvement
1 = improvement

DMOutcome >= 3 (FILTER)
0 = Not Selected
1 = Selected