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. 2005 Aug 11;5:83. doi: 10.1186/1471-2458-5-83

Table 2.

Frequency of answers to the question "Have you ever thought about suicide?" in the years 1994, 1998 and 2002

Level of suicidality Category of the answer 1994 1998 2002 Total

N % N % N % N %
Non suicidal 'Have never thought about that' 3269 60.4 2660 59.3 3722 67.5 9651 62.6
Low level of suicidality 'Sometimes have had such thoughts' 1706 31.5 1387 30.9 1332 24.1 4425 28.7
High level of suicidality 'Have frequently thought about suicide' 224 4.2 203 4.5 218 4.0 645 4.2
'I have thought about suicide seriously, even made plans how to carry it out' 164 3.0 154 3.5 150 2.7 468 3.0
'Tried to commit suicide' 50 0.9 79 1.8 96 1.7 225 1.5
Total 5413 100.0 4483 100.0 5518 100.0 15414 100.0

Test for homogeneity of the prevalence of answers in 1994, 1998 and 2002: χ2 = 118.0; df = 8; p < 0.001.