Table 2.
Baseline medication use by presence of a prolonged PR interval (PRi).
| Medication type | PRi < 120 ms (n = 49) |
PRi 120–200 ms (n = 4503) |
PRi > 200 ms (n = 410) |
Overall P value |
|---|---|---|---|---|
| ACE inhibitor (%) | 6.1 | 11.6 | 16.8∗ | 0.003 |
| Angiotensin 2 antagonist (%) | 2.0 | 4.7 | 6.5 | 0.2 |
| Beta-blocker (%) | 4.1 | 8.5 | 15.1+ | <0.001 |
| Calcium channel blocker (%) | 2.0 | 11.3 | 18.5+ | <0.001 |
| Antiarrhythmic medication (%) | 0 | 0.04 | 1.7∗ | 0.001 |
| Digitalis preparation (%) | 0 | 0.3 | 1.0 | 0.07 |
| Diuretic medication (%) | 0∗ | 11.6 | 19.2+ | <0.001 |
| Cholesterol medication (%) | 10.2 | 15.4 | 18.2 | 0.2 |
| Any hypertension medication (%) | 12.2∗ | 34.0 | 51.6+ | <0.001 |
+ P < 0.001 compared to PRi 120–200 ms; ∗ P < 0.01 compared to PRi 120–200 ms.