Table 2

COVIQuest_CV subtrial comparison of hospitalisations within 1 month

Hospitalisation, n (%)OR (95% CI)*, p valueRisk difference (95% CI)*, p valueICC (95% CI)
A: intervention group (phone call) (n1=1834)B: control group (n2=1510)A: intervention group (phone call)B: control group
Full data set65 (3.54)69 (4.57)0.82 (0.56 to 1.20), 0.310−0.77 (−2.28 to 0.74), 0.319−0.004 (−0.011 to 0.009)0.012 (−0.017 to 0.035)
Adjusted analysis†0.82 (0.56 to 1.20), 0.308−0.77 (−2.28 to 0.74), 0.315
Completers‡65/1486 (4.37)69/1471 (4.69)0.99 (0.68 to 1.43), 0.943−0.06 (−1.66 to 1.54), 0.941−0.003 (−0.011 to 0.014)0.011 (−0.002 to 0.035)
  • *Adjustment on region.

  • †Adjustment on region, age and sex.

  • ‡Missing data were considered as no hospitalisation.

  • COVIQuest_CV, patients with cardiovascular disease; ICC, intraclass correlation coefficient.