Fig. 7

Intentional use of lethal drugs administered by professionals without patient request. Note: See Fig. 2 for abbreviations. X² = 17372 (null hypothesis: all frequencies the same), p < 0.001 (simulated). The coefficient of year = −0.0574, p < 0.001 among all surveys; greater than zero suggesting positive changes from 1990 to 2010, lower suggesting the opposite). The coefficient of year = −0.0496, p < 0.001 among Dutch surveys. The coefficient of year = −0.0924, p < 0.001 among Belgian surveys. See Appendix 3 for regression coefficients