I've seen that before as well, but it is based on real old data. Many of the numbers are from over a decade ago.
My claim for this statement is a bit less formal; within Singapore, where I lived, it is common word-of-mouth that the teen suicide rate needs serious attention, and they often say there that it is much worse than in most other places. But I can't point you to a specific study.
Also, regarding formal stats: Singaporeans are (rightly so) quite skeptical of any official figures released by the government. Singapore's leaders tend to keep private any stats that are unfavorable (much of the recent haze-related details the last couple of years were promptly removed from public media if they were too critical; and if anyone there writes articles, even on a personal blog, that are critical of the culture, its policies, or raise serious questions, they often get severely fined or imprisoned).
My claim for this statement is a bit less formal; within Singapore, where I lived, it is common word-of-mouth that the teen suicide rate needs serious attention, and they often say there that it is much worse than in most other places. But I can't point you to a specific study.
Also, regarding formal stats: Singaporeans are (rightly so) quite skeptical of any official figures released by the government. Singapore's leaders tend to keep private any stats that are unfavorable (much of the recent haze-related details the last couple of years were promptly removed from public media if they were too critical; and if anyone there writes articles, even on a personal blog, that are critical of the culture, its policies, or raise serious questions, they often get severely fined or imprisoned).