Skip to main content
. 2021 Jun 15;23(6):e27860. doi: 10.2196/27860

Table 2.

Participants choosing treatment types (the binary outcomes)a.

Treatment type and month Control MyBackPain Risk ratio (95% CI) P value

Total, participant, n Participant, n (%) Number missing (n=226), n (%) Total, participant, n Participant, n (%) Number missing (n=214), n (%)

Observed treatment choice harmful or no effect

1 83 20 (24.1) 143 (63.2) 63 17 (26.9) 151 (70.6) 1.07 (0.55-1.59) .79

3 73 12 (16.4) 153 (67.7) 52 13 (25) 162 (75.7) 1.39 (0.56-2.23) .35

6 67 11 (16.4) 159 (70.3) 67 11 (16.4) 147 (68.7) 0.76 (0.30-1.22) .30

12 89 18 (20.2) 137 (60.6) 72 10 (13.8) 142 (66.3) 0.94 (0.40-1.48) .83
Observed treatment choice recommended

1 83 55 (66.2) 143 (63.2) 63 40 (63.5) 151 (70.6) 0.89 (0.69-1.08) .26

3 73 49 (67.1) 153 (67.7) 52 37 (71.1) 162 (75.7) 0.99 (0.78-1.20) .94

6 67 54 (80.6) 159 (70.3) 67 47 (70.1) 147 (68.7) 0.84 (0.64-1.05) .13

12 89 65 (73) 137 (60.6) 72 54 (75) 142 (66.3) 0.99 (0.78-1.20) .91

aOdds and risk ratios are calculated using multiply imputed data. Counts and percentages calculated using the observed data only.