Original articleIncidence of retinopathy of prematurity from 1996 to 2000: Analysis of a comprehensive New York state patient database☆
Section snippets
Source of data
The primary data source for this study was the SPARCS administrative database, which was established by the New York State Department of Health in 1979.20 By law, the Uniform Hospital Discharge Data Set must be submitted to this integrated information network for every inpatient from each of the 252 hospitals in the state. Separate databases are used to store records from hospitals in New York city and the remainder of New York state, which were combined for the purposes of this study. Each
Patient and database characteristics
Data about 11 974 163 patients discharged from hospitals in New York were present in the SPARCS system from the years 1996 to 2000, of whom 1 167 427 were newborn infants. This reflects 90.4% of the 1 292 289 registered live births in New York state during the same period (New York State Department of Health, http://www.health.state.ny.us/nysdoh/consumer/vt.htm. Accessed 1/20/03); 15 691 newborns in SPARCS met the inclusion criteria of “extended-stay newborn infant” by having a length of stay
Discussion
This retrospective study constitutes the largest known group that has been studied to determine the incidence and risk factors for ROP. By use of the SPARCS database, each of the 1 167 427 infants born in a New York hospital from 1996 to 2000 was analyzed. Furthermore, this represents a broad geographic and socioeconomic spectrum of patients taken from 252 acute care hospitals in urban and rural New York (Table 1).
From this population, a study cohort of 15 691 “extended-stay infants” was
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Manuscript no. 230047.
Supported by the National Library of Medicine and the National Eye Institute, Bethesda, Maryland (grant no.: LM07079, EY13972) (MFC).
The authors have no commercial, proprietary, or financial interest in any of the products or companies described in this article.