Research Article
Risk Behaviors in Teens with Chronic Kidney Disease: A Study from the Midwest Pediatric Nephrology Consortium
Table 4
Ages (years) for first had sex, first had a drink, and first smoked marijuana.
| Variable | Statistic | ASK KIDD | Control | P value |
| Age (years) first had sex | Mean ± SD | 15.1 ± 1.6 | 14.6 ± 1.6 | 0.010 | Median (IQR) | 15.0 (2.0) | 15.0 (2.0) | Range | 11–17 | 11–17 | 25th | 14.0 | 14.0 | 75th | 16.0 | 16.0 | n | 80 | 3189 |
| Age (years) had first drink | Mean ± SD | 14.1 ± 2.3 | 13.3 ± 2.6 | 0.007 | Median (IQR) | 15.5 (2.0) | 13.5 (4.0) | Range | 8–17 | 8–17 | 25th | 13.5 | 11.5 | 75th | 15.5 | 15.5 | n | 70 | 4805 |
| Age (years) first smoked marijuana | Mean ± SD | 13.8 ± 2.4 | 13.8 ± 2.1 | 0.988 | Median (IQR) | 13.5 (2.0) | 13.5 (2.0) | Range | 8–17 | 8–17 | 25th | 13.5 | 13.5 | 75th | 15.5 | 15.5 | n | 64 | 3282 |
|
|
IQR = interquartile range.
|