Birth Defects Cases by Leading Diagnostic Groups and by Birth Year Interval
St. Clair County, Michigan Resident Children 2003 through 2019
Three Year Moving Total Prevalence

Diagnostic Code GroupBirth Year Interval
2003
to
2005		2004
to
2006		2005
to
2007		2006
to
2008		2007
to
2009		2008
to
2010		2009
to
2011		2010
to
2012		2011
to
2013		2012
to
2014		2013
to
2015		2014
to
2016		2015
to
2017		2016
to
2018		2017
to
2019
Heart & Circulatory System 83  65  69  68  76  61  68  83  98  107  112  132  124  116  105  
Congenital Anomalies 77  60  63  59  67  55  64  78  92  99  98  116  111  105  98  
Other Conditions 11  8  13  16  18  12  11  18  19  21  26  31  30  23  15  
Musculoskeletal System 63  55  62  64  49  38  55  87  109  136  137  143  113  102  89  
Congenital Anomalies 63  55  62  64  49  38  55  87  109  136  137  143  113  102  89  
Other Conditions -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  
Genital & Urinary Systems 37  39  35  29  23  28  36  53  67  75  81  91  93  85  80  
Congenital Anomalies 37  39  35  29  23  27  35  52  66  74  78  87  88  80  75  
Other Conditions 1  1  -  -  -  2  2  4  3  4  9  12  12  10  10  
Gastrointestinal System 39  37  41  36  31  20  23  32  44  59  65  59  43  29  34  
Congenital Anomalies 21  22  24  21  18  12  14  12  16  25  32  33  24  17  20  
Other Conditions 21  19  20  20  16  10  9  20  28  36  36  30  21  13  16  
Eye 40  37  37  36  29  23  23  26  32  36  40  37  30  25  22  
Congenital Anomalies 8  8  4  4  2  4  4  7  13  15  19  16  16  12  9  
Other Conditions 33  29  33  32  27  19  19  20  20  22  22  22  15  14  14  
Central Nervous System 31  26  28  28  28  21  24  27  30  40  52  67  60  54  45  
Congenital Anomalies 18  16  16  17  20  16  15  17  17  22  28  40  36  32  27  
Other Conditions 15  12  14  14  13  8  11  15  19  30  39  45  40  34  29  
Maternal Exposures 2  2  3  5  5  5  10  17  26  25  28  28  31  25  26  
Integument Anomalies 3  6  4  5  3  3  4  7  8  15  18  25  19  14  13  
Respiratory
System Anomalies 		21  26  32  26  20  8  13  21  24  28  29  35  31  27  21  
Other
Reportable Conditions 		58  64  59  49  42  46  83  107  132  145  159  166  163  167  153  
One or More
Reportable Conditions 		284  267  284  262  218  177  230  339  444  521  532  563  508  478  421  
                 

Notes:
Frequencies include all children reported with a birth defect who were born in Michigan and whose mother was a resident of St. Clair County, Michigan at the time of birth. This enables the calculation of birth defects prevalence rates. Prior to October 2015, diagnoses were coded using the 9th revision to the International Classification of Diseases - ICD–9–CM.  (See Birth Defect Groups and ICD–9–CM Diagnosis Codes for the codes used to categorize birth defects.) After October 2015, the Birth Defect registry coded diagnoses using ICD–10–CM. (See Birth Defect Groups and ICD–10–CM Diagnosis Codes for the codes used to categorize birth defects.) Diagnostic Code Groupings used in analysis of birth defects are defined by the Centers for Disease Control.
Conditions are reportable if identified within the first two years of a child's life. The frequencies at one year and at two years serve to indicate the time from the birth of the child to the diagnosis of the condition. Birth defect statistics sometimes reflect trends related to data reporting or new testing. See Data Quality Considerations for further details.
Source: Michigan Birth Defects Registry, Division for Vital Records & Health Statistics, Michigan Department of Health & Human Services
Reports Processed through May 28, 2022

Last Updated on May 1st, 2022