Table 2

Baseline characteristics by randomised group

Group 1Group 2Group 3Group 4
n51495149
Age (years)69.1 (7.4)68.3 (5.7)70.3 (6.3)68.9 (6.0)
Body mass index (kg/m2)26.7 (5.1)27.1 (4.7)26.4 (4.4)26.5 (5.4)
Female (%)86717590
European descent (%)92989496
Fracture after 50 years (%)41313522
Bone mineral density T-score
 Lumbar spine−0.5 (1.6)−0.3 (1.8)−0.4 (2.0)−0.1 (1.6)
 Total hip−1.2 (1.1)−0.9 (1.3)−1.1 (1.2)−1.1 (2.3)
 Femoral neck−1.6 (0.9)−1.3 (1.1)−1.5 (1.0)−1.3 (0.9)
  • Data are per cent, or mean (SD). Group 1: framed as chance of having an event and treatment benefits in natural frequencies; group 2: framed as chance of not having an event and treatment benefits in natural frequencies; group 3: framed as chance of having an event and treatment benefits as number needed to treat; group 4: framed as chance of not having an event and treatment benefits as number needed to treat.