Table 2.
Unpaired t-tests comparing World Health Organization crude suicide rates between guidelines that did and did not include family-based prevention, intervention and postvention recommendations
| Outcome | Mean (s.d.) per 100 000 | t (d.f.)a | P | Mean difference (s.e. difference) | 95% CI of the difference | |
|---|---|---|---|---|---|---|
| Family-based prevention recommendations | ||||||
| Included (n = 45) | Did not include (n = 5) | |||||
| Crude suicide ratesb | 12.81 (7.11) | 8.72 (3.79) | 1.259 (48) | 0.214 | 4.09 (3.25) | −2.44 to 10.62 |
| Family-based intervention recommendations | ||||||
| Included (n = 16) | Did not include (n = 34) | |||||
| Crude suicide ratesb | 11.38 (5.29) | 12.88 (7.61) | 0.712 (48) | 0.480 | −1.50 (2.11) | −5.75 to 2.27 |
| Family-based postvention recommendations | ||||||
| Included (n = 28) | Did not include (n = 22) | |||||
| Crude suicide ratesb | 12.77 (7.81) | 11.93 (5.77) | 0.423 (48) | 0.674 | 0.843 (1.99) | −3.16 to 4.85 |
d.f., degrees of freedom.
a.
Absolute values reported.
b.
Equal variances assumed.