[SINGAPORE] Social networking site LinkedIn has released the results of a global survey, which delves into workplace behaviour, ranging from sacrificng friendships and climbing the career ladder to overall work performance.

It found, for example, that more than half the 1,000 Singapore professionals (51.6 per cent) polled would consider sacrificing friendship for promotion.

The report by LinkedIn said more than one in five (22 per cent) workers here had an ulterior motive for socialising with their fellow colleagues, thinking that doing so would help them move up the career ladder.

Millennials - respondents aged 18-24 - were the most likely to think so (40.9 per cent).

The online survey polled 11,500 workers globally in April. Respondents, aged 18 to 65 in 14 countries were surveyed to uncover how full-time working professionals viewed relationships at work.

While more than half the professionals here (51.5 per cent) said friendships with colleagues made them happier at work, more than one in five (20.4 per cent) said these friendships actually made them more competitive.

But even with their competitive streak, 60.9 per cent of Singapore workers said that they had a colleague who looked out for them - significantly above the global average of 48.5 per cent.

As for generational differences, millennials - more than any other age group - reported that friendships in the workplace affected them positively, making them feel happy (67.7 per cent) and productive (39.8 per cent).

In contrast, their older colleagues - baby boomers aged 55 to 65 - were far more likely (42.9 per cent) to report that their work performance was unaffected by friendships with colleagues.

Among millenials, the figure was only 14 per cent.

The survey also found that younger workers tended to draw fewer boundaries between their personal lives and the office. In fact, millennials were far more likely to discuss their salaries with co-workers (40.9 per cent) than the baby boomers (18.4 per cent).

Such blurring of their personal and professional lives extended online as well: nearly half of those aged 18 to 34 (49 per cent) had connected with their managers on a social media platform. For Singapore workers as a whole, it was 38.6 per cent.

LinkedIn is the world's largest professional network. It has more than a million members here.