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 Name
 Small for Gestational Age Rate
 Short/Other Names
 SGA
 Description
 Crude rate for small for gestational age (SGA)
 Interpretation
 The in-hospital SGA rate represents the proportion of singleton babies born in a Canadian hospital with a birth weight below the 10th percentile for their gestational age and sex. In other words, babies classified as SGA are smaller than 90% of the babies from a standard reference population of the same gestational age and sex. Lower rates for this indicator are desirable.
 HSP Framework Dimension
 Health System Outcomes: Improve health status of Canadians
 Areas of Need
 Not applicable
 Geographic Coverage
 All provinces/territories
 Reporting Level/Disaggregation
 National, Province/Territory, Region
 Indicator Results
 https://apps.cihi.ca/mstrapp/asp/Main.aspx?Server=apmstrextprd_i&project=Quick%20Stats&uid=pce_pub_en&pwd=&evt=2048001&visualizationMode=0&documentID=029DB170438205AEBCC75B8673CCE822
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Identifying Information
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 Name
 Small for Gestational Age Rate
 Short/Other Names
 SGA
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Indicator Description and Calculation
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 Description
 Crude rate for small for gestational age (SGA)
 Calculation: Description
 Rate = (Number of live singleton newborns classified as SGA at birth) ÷ (Number of live singleton newborns with a valid birth weight, gestational age and gender) × 100 Unit of Analysis: Discharges from acute care facilities
 Calculation: Geographic Assignment
 Place of residence
 Calculation: Type of Measurement
 Rate - Per 100
 None
 Not applicable
 Denominator
 Description: Number of live singleton newborns with a valid birth weight, gestational age and gender Inclusions: 1. ICD-10-CA in-hospital singleton birth code: a. A diagnosis code of Z38.0 coded in any position Exclusions: 1. Non-newborn records 2. Cadaveric donors 3. Invalid birth weight (Weight = blank, 0000, 0001 or ZZZZ) 4. Invalid or out-of-range gestational age (Delivery Gestational Age = blank or ZZ or <22 weeks or >43 weeks) 5. Gender Code not equal to F or M 6. ICD-10-CA multiple births codes: a. Any newborn record (Entry Code = N with a Z38 diagnosis code) where two or more newborn records are born to the same mother (duplicate Maternal Newborn Chart Number) within 40 days of one another (based on Admission Date) in the same institution (Institution Number) OR b. Any one ICD-10-CA multiple birth diagnosis code of Z38.3, Z38.4, Z38.5, Z38.6, Z38.7 or Z38.8 coded in any diagnosis field 7. ICD-10-CA abortion or other out-of-hospital birth codes: a. Any one diagnosis code of P96.4, Z38.1 or Z38.2 coded in any diagnosis field
 Numerator
 Description: Number of live singleton newborns classified as SGA at birth Inclusions: 1. Weight <10th percentile for gestational age and gender category. Standard Canadian birth weights for gestational age by gender charts were used (M. S. Kramer et al., 2001). Exclusions: Same as denominator (numerator is a subset of the denominator)
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Background, Interpretation and Benchmarks
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 Rationale
 SGA rates continue to vary among provinces/territories. Given this variance, this indicator can be used to inform government planners, policy-makers, health system decision-makers, health care providers, patients and the general public. It can help raise awareness and allow Canada to compare its rates with the rates of other countries.
 Interpretation
 The in-hospital SGA rate represents the proportion of singleton babies born in a Canadian hospital with a birth weight below the 10th percentile for their gestational age and sex. In other words, babies classified as SGA are smaller than 90% of the babies from a standard reference population of the same gestational age and sex. Lower rates for this indicator are desirable.
 HSP Framework Dimension
 Health System Outcomes: Improve health status of Canadians
 Areas of Need
 Not applicable
 Targets/Benchmarks
 Not applicable
 References
 Kramer MS, Platt RW, Wen SW, et al. A new and improved population-based Canadian reference for birth weight for gestational age. Pediatrics. 2001;108(2):e35. http://www.pediatrics.org/cgi/content/full/108/2/e35.
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Availability of Data Sources and Results
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 Data Sources
 Available Data Years
 Type of Year: Fiscal First Available Year: 2007 Last Available Year: 2017
 Geographic Coverage
 All provinces/territories
 Reporting Level/Disaggregation
 National, Province/Territory, Region
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 Update Frequency
 Every year
 Indicator Results
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