From: Trends in solids/liquids poisoning suicide rates in Taiwan: a test of the substitution hypothesis
 | Male | Female | ||||||||
---|---|---|---|---|---|---|---|---|---|---|
 | 1983 | 1993 | Rate Difference | 1983 | 1993 | Rate Difference | ||||
 | Rate | N | Rate | N |  | Rate | N | Rate | N |  |
15-24 y/o | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
   Poisona | 7.18 | (147) | 1.9 | (36) | -5.32 | 7.57 | (149) | 1.03 | (19) | -6.55 |
   Hangingb | 2.03 | (41) | 2.6 | (51) | 0.61 | 0.73 | (15) | 1.03 | (19) | 0.3 |
   Othersc | 1.52 | (32) | 1.8 | (35) | 0.27 | 0.47 | (9) | 0.8 | (15) | 0.33 |
   Overall | 10.7 | (220) | 6.3 | (122) | -4.44 | 8.77 | (173) | 2.86 | (53) | -5.92 |
25-44 y/o | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
   Poisona | 10.5 | (268) | 3.1 | (111) | -7.39 | 9.05 | (235) | 2.61 | (88) | -6.44 |
   Hangingb | 3.91 | (102) | 4.5 | (163) | 0.597 | 2.3 | (57) | 2.58 | (91) | 0.28 |
   Othersc | 1.39 | (38) | 2 | (74) | 0.625 | 1.04 | (27) | 1.18 | (40) | 0.14 |
   Overall | 15.8 | (408) | 9.7 | (348) | -6.17 | 12.4 | (319) | 6.36 | (219) | -6.03 |
45-64 y/o | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
   Poisona | 15.8 | (255) | 5 | (84) | -10.9 | 9.43 | (117) | 2.98 | (49) | -6.45 |
   Hangingb | 13.1 | (214) | 7.3 | (125) | -5.8 | 4.09 | (52) | 3.7 | (60) | -0.39 |
   Othersc | 1.67 | (28) | 3 | (52) | 1.33 | 1 | (12) | 0.81 | (13) | -0.19 |
   Overall | 30.6 | (497) | 15 | (261) | -15.4 | 14.5 | (181) | 7.5 | (122) | -7.02 |
65 above | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
   Poisona | 24.5 | (109) | 7.3 | (60) | -17.2 | 20.8 | (89) | 5.26 | (37) | -15.56 |
   Hangingb | 33.9 | (148) | 21 | (174) | -12.4 | 17.1 | (75) | 10.4 | (73) | -6.69 |
   Othersc | 4 | (19) | 5.1 | (43) | 1.084 | 1.52 | (6) | 1.57 | (10) | 0.05 |
   Overall | 62.4 | (276) | 34 | (277) | -28.6 | 39.5 | (170) | 17.3 | (120) | -22.2 |
Total | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
   Poisona | 12.6 | (779) | 3.7 | (291) | -8.84 | 9.99 | (590) | 2.59 | (193) | -7.4 |
   Hangingb | 9.01 | (505) | 6.5 | (513) | -2.48 | 3.91 | (199) | 3.3 | (243) | -0.61 |
   Othersc | 1.77 | (117) | 2.5 | (204) | 0.778 | 0.94 | (54) | 1.02 | (78) | 0.09 |
   Overall | 23.4 | (1401) | 13 | (1008) | -10.5 | 14.8 | (843) | 6.92 | (514) | -7.91 |