Table 3 Categories and criteria for Groups A, B and C in WHO preterm birth estimates
WHO Member States | ||||
|---|---|---|---|---|
Group A country | Group B country | Group C country | ||
Quality Criteria | Source | Specific criteria | ||
1. Preterm birth data available | Assess available CRVS data | CRVS data for preterm birth are available, ie: Preterm birth rate is given or can be calculated | CRVS data for preterm birth are available, ie: Preterm birth rate is given or can be calculated | No CRVS for preterm birth available, or CRVS data available but country does not otherwise meet Group A or B criteria |
2. Quality of civil registration system for births | Civil registration coverage of births (%) | CRVS coverage for births >80 % [20] (or country can be otherwise classified as having high coverage for birth registration) | CRVS coverage for births is 60 % - <80 % [20] | CRVS coverage for birth data is <60 % or unknown [20] |
3. Volume of CRVS data | Assess available CRVS data | • ≥500 births • Commencement date of data collection after 1/1/1990 • End date of data collection is before 31/12/2014 • Number of years where preterm data available is >50 % for the period 1990 to 2014 inclusive (i.e. CRVS data available for at least 13 years) | • ≥500 births • Commencement date of data collection after 1/1/1990 • End date of data collection is before 31/12/2014 • Data for any year/s between 1990 to 2014 inclusive (but does not meet Group A criteria) | • No CRVS data on preterm birth available, or • CRVS data on preterm birth available, but country does not otherwise meet Group A or Group B criteriaa |
Data sources for development of estimates | ||||
Data sources: | CRVS data only to be used | Conduct systematic review of published studies to identify additional data sources | Conduct systematic review of published studies to identify additional data sources | |