TABLE 1.

Postneonatal Mortality Rates Per 100 000 Live Births (Number of Deaths) for the ICD Chapters “Symptoms and Ill-Defined Conditions” and “External Causes of Injury”

ICD Category (ICD-9 [1992–1998]/ ICD-10 [1999–2001] Codes)1992199319941995199619971998199920002001Average Annual Change, % (95% CIs)*
Symptoms, signs, and ill-defined conditions (780–799/R00–R99)
    SIDS (798.0/R95)113.0 (4593)109.5 (4382)96.5 (3815)81.5 (3178)72.9 (2837)72.4 (2809)66.8 (2634)61.6 (2440)57.1 (2319)50.9 (2047)−8.6 (−8.9, −8.2)
    Unknown and unspecified (799.9/R99)15.4 (624)16.9 (674)14.3 (567)16.6 (646)14.1 (548)13.5 (524)13.7 (541)16.3 (646)19.4 (789)23.0 (925)3.3 (2.4, 4.2)
    Remainder of symptoms chapter3.1 (125)2.3 (92)2.7 (108)2.3 (89)2.2 (85)2.1 (80)2.3 (92)1.6 (63)1.7 (69)1.5 (61)−6.5 (−8.7, −4.3)
External causes of injury (E800–E999/V01–Y89)
    Suffocation-bed (E913.0/W75)2.7 (110)3.5 (138)3.7 (145)3.5 (137)3.4 (132)3.8 (149)4.2 (165)5.4 (214)5.6 (227)8.2 (329)11.2 (9.3, 13.0)
    Suffocation-other (E913.1–E913.9/ W76–W77 and W81–W84)2.3 (95)3.1 (123)3.6 (141)3.6 (140)3.1 (122)3.2 (123)2.9 (116)3.5 (139)4.0 (164)3.7 (149)3.2 (1.3, 5.1)
    Aspiration (E911–E912/W78–W80)2.3 (94)2.1 (82)2.2 (85)2.0 (79)1.9 (72)1.9 (72)1.4 (55)1.5 (60)1.8 (72)1.4 (58)−4.8 (−7.2, −2.3)
    Homicide (E960–E968/X85–Y09 and Y87.1)6.8 (278)7.3 (291)6.8 (269)6.7 (262)7.3 (285)7.2 (281)7.1 (279)6.9 (272)7.6 (309)6.9 (279)0.4 (−0.9, 1.7)
    Intent unknown (E980–E989/ Y10–Y34)0.8 (32)1.3 (51)1.0 (40)1.2 (47)1.4 (53)1.2 (46)1.6 (63)1.3 (50)1.5 (61)1.7 (70)6.0 (2.9, 9.3)
Remainder of external-causes chapter10.8 (437)11.8 (470)11.0 (435)9.3 (364)9.9 (385)8.6 (334)8.5 (336)9.2 (365)8.3 (335)8.8 (353)−3.4 (−4.5, −2.3)
Postneonatal residual157.2 (6391)149.7 (5989)148.1 (5855)140.7 (5486)138.7 (5396)131.5 (5103)131.2 (5172)125.3 (4960)121.1 (4914)125.0 (5032)−2.8 (−3.1, −2.5)
Postneonatal total314.4 (12 779)307.3 (12 292)289.9 (11 460)267.4 (10 428)254.8 (9915)245.3 (9521)239.8 (9453)232.6 (9209)228.1 (9259)231.1 (9303)−3.8% (−4.1, −3.6)
  • * Average annual percentage change was determined by Poisson regression.