Response rates in hand-signature vs electronic-signature groups, stratified by language preference
| Language preference | Hand-signature | Electronic-signature | Absolute difference (95% CI) | P value* |
| 0.68 | ||||
| English | 35.8% | 40% | −4.2% (−13.7% to 5.6%) | |
| Canadian French | 48.4% | 47.2% | 1.2% (−22.8% to 25.2%) | |
| Overall | 37.7% | 40.9% | −3.3% (−12.1% to 5.6%) |
*P value derived from logistic regression interaction term between signature type and language preference.