Table 1.
Substrate recurrence rate by patient demographics in the cohort
| 0 to 2 Months | 2 to 6 Months+ | 6 to 12 Months+ | 0 to 6 Months | 0 to 12 Months | |
|---|---|---|---|---|---|
| Total substrates | 7.0% (35/500) | 2.3% (10/427) | 1.7% (6/352) | 9.2% | 10.7% |
| Gender | |||||
| Males | 7.1% (19/268) | 1.8% (4/222) | 1.1% (2/185) | 8.8% | 9.7% |
| Females | 6.9% (16/232) | 2.9% (6/205) | 2.4% (4/167) | 9.6% | 11.8% |
| Age (in years) | |||||
| 0–9 | 7.4% (10/135) | 1.7% (2/118) | 2.0% (2/99) | 9.0% | 10.8% |
| 10–12 | 5.5% (6/109) | 2.1% (2/94) | 2.5% (2/81) | 7.5% | 9.8% |
| 13–14 | 9.7% (10/103) | 4.7% (4/86) | 1.4% (1/73) | 13.9% | 15.1% |
| 15–16 | 6.8% (8/118) | 2.0% (2/99) | 1.4% (1/74) | 8.7% | 9.9% |
| >16 | 2.9% (1/35) | 0.0% (0/30) | 0.0% (0/25) | 2.9% | 2.9% |
| Body mass index | |||||
| <20 | 7.2% (20/279) | 2.8% (7/249) | 1.4% (3/209) | 9.8% | 11.1% |
| 20–29 | 6.4% (13/202) | 1.8% (3/164) | 2.3% (3/132) | 8.1% | 10.2% |
| 30–39 | 11.8% (2/17) | 0.0% (0/13) | 0.0% (0/9) | 11.8% | 11.8% |
| ≥40 | NA (0/0) | NA (0/0) | NA (0/0) | NA | NA |
| Unknown | 0.0% (0/2) | 0.0% (0/1) | 0.0% (0/2) | 0.0% | 0.0% |
| Ethnicity | |||||
| Caucasian, non-Hispanic | 7.4% (32/434) | 2.2% (8/369) | 2.0% (6/305) | 9.4% | 11.2% |
| Black, non-Hispanic | 5.6% (2/36) | 3.0% (1/33) | 0.0% (0/27) | 8.4% | 8.4% |
| Hispanic | 5.3% (1/19) | 0.0% (0/14) | 0.0% (0/13) | 5.3% | 5.3% |
| Asian, non-Hispanic | 0.0% (0/9) | 11.1% (1/9) | 0.0% (0/5) | 11.1% | 11.1% |
| Native American | 0.0% (0/2) | 0.0% (0/2) | 0.0% (0/2) | 0.0% | 0.0% |
| Other | 7.4% (32/434) | 2.2% (8/369) | 2.0% (6/305) | 9.4% | 11.2% |
| Missing | 5.6% (2/36) | 3.0% (1/33) | 0.0% (0/27) | 8.4% | 8.4% |
+
Substrates with recurrences at end of interval/substrates known not to have prior recurrence at beginning of interval.