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. 2011 Jun 3;6(6):e14817. doi: 10.1371/journal.pone.0014817

Table 1. Hospital admissions by main ICD codes according to subperiods.

From 28 days to 19 years 1992–1996 1997–2001 2002–2006
ICD Chapters Admission* % Rate Admission* % Rate Admission* % Rate
Infectious and parasitic diseases 3,753,957 18.19 2.21 2,573,141 14.17 1.88 2,607,905 15.75 1.2
Neoplasms 271,371 1.31 3 217,222 1.20 3.26 360,665 2.18 2.3
Diseases of the blood and blood-forming organs 709,582 3.44 1.98 117,779 0.65 1.53 122,804 0.74 1.16
Endocrine, nutritional and metabolic 709,582 3.44 1.98 424,552 2.34 1.425 365,243 2.21 0.9
Mental disorders 920,55 0.45 0.13 88,749 0.49 0.105 74,396 0.45 0.1
Diseases of the nervous system 523,230 2.53 2.66 301,272 1.66 3.065 244,693 1.48 2.75
Diseases of circulatory system 232,587 1.13 5.16 153,423 0.85 5.61 120,393 0.73 5.56
Diseases of respiratory system 6,108,257 29.59 0.85 5,055,189 27.85 0.71 4,373,589 26.42 0.61
Diseases of the digestive system 959,737 4.65 0.79 1,097,455 6.05 0.72 989,780 5.98 0.62
Diseases of the skin and subcutaneous tissue 202,991 0.98 0.21 198,766 1.09 0.17 217,989 1.32 0.15
Diseases of the musculoskeletal system 316,437 1.53 0.21 244,111 1.34 0.285 224,594 1.36 0.23
Diseases of the genitourinary system 947,184 4.59 0.28 715,307 3.94 0.26 670,407 4.05 0.23
Complications of pregnancy, childbirth, puerperium 3,853,255 18.67 0.03 3,918,000 21.58 0.02 3,335,771 20.15 0.02
Certain conditions originating in the perinatal period 585,746 2.84 7.5 1,095,923 6.04 7.76 1,015,772 6.14 6.51
Congenital anomalies 243,148 1.18 3.43 284,510 1.57 3.295 312,788 1.89 3.19
Injury and poisoning 1,363,894 6.61 1.11 1,007,775 5.55 1.14 108,6491 6.56 1.16
External 85,297 0.47 1.37 8,278 0.05 0.93
Total 20,641,971 100.00 1.32 18,154,477 100.00 1.255 16,555,446 100.00 1.14