The median age was 34 years
(range: 7 to 98 years; inter-quartile range [IQR]: 27 to 45 years). The majority were female
(407, 51.7%). The majority were Singapore citizens (414, 52.5%) or Chinese nationals (145,
18.4%). Of the 54 cases, the median age was 42 years (range: 16 to 79 years; IQR: 34 to 54
years), 29 (53.7%) were male and 48 (88.9%) were ethnic Chinese.