Internet-based data inclusion in a population-based European collaborative follow-up study of inflammatory bowel disease patients: Description of methods used and analysis of factors influencing response rates

Table 4 Results of univariate and multivariate logistic regression analyses for identification of predictors of ePQ completion in the entire cohort

CD+UC
N total = 1 141	n	Response (%)	Unadjusted Odds Ratio (95%CI)	Adjusted Odds Ratio (95%CI)	P
CD/UC	365/776	289 (79)/588 (76)	1.22 (0.90-1.64)	1.24 (0.91-1.70)	0.171
Female/male	552/589	429 (77)/448 (76)	1.10 (0.84-1.44)	1.09 (0.82-1.44)	0.564
Age at ePQ completion	707/434	559 (79)/318 (73)	1.38 (1.04-1.82)	1.53 (1.14-2.05)	0.004
>40/ ≤40 yr
Flare/no flare1	88/1 053	80 (91)/797 (76)	3.21 (1.53-6.73)	3.32 (1.57- 7.03)	0.002

¹Flare within 3 mo period previous of the moment of ePQ completion. N: number of patients; CI: confidence interval.