Table 2. Demographic Characteristics in Incident EGD Subjects in 1985, 1995 & 2005.
Incident EGD with biopsy subject cohort demographics in 1985, 1995 and 2005. Subsamples represent subject data available from subject medical records from a random sample of 100 EGD subjects from the respective time points. A striking difference in the number of infants (less than 1 year of age) undergoing EGD in 1985, 1995 and 2005 was confirmed in two separate databases for the total cohorts as well as the subsample.
| 1985 | 1995 | 2005 | p-value | |
|---|---|---|---|---|
| Total Subsample Eligible | 107 | 507 | 1294 | |
| 78 of 100 | 84 of 100 | 83 of 100 | ||
|
Total Age Subsample Age (mean, year) |
7.7 ± 6.0 | 6.4±5.7 | 9.0± 6.0 | P=ns* |
| 7.6 ± 6.1 | 6.9±6.4 | 8.5 ± 5.3 | ||
|
Total Infants Subsample Infants (% <1 year) |
13.1% | 23.3% | 7.7% | P<0.005** |
| 16.7% | 28.6% | 6.0% | ||
|
Total Sex Subsample Sex (% male) |
52.3% | 53.9% | 54.6% | P=ns** |
| 53.2% | 51.2% | 55.4% | ||
|
Total Race Subsample Race (% Caucasian) |
78.9% | 82.8% | 79.2% | P=ns** |
| 81.0% | 81.0% | 84.3% | ||
*
Subjects in 1985, 1995, & 2005 compared using ANOVA test
**
Subjects in 1985, 1995, & 2005 compared using Chi-Square test