Predicted mean proportion of patients screened given different baseline control proportions
Combinations of QI strategies (no. of arms)	30% baseline  screening (95% CrI)	50% baseline  screening (95% CrI)	70% baseline  screening (95% CrI)
Most common combinations of QI strategies observed 3 or more times in included studies reporting retinopathy screening
CM + TC + PE + PSM (n = 6)	0.63 (0.46 to 0.77)	0.80 (0.67 to 0.89)	0.90 (0.82 to 0.95)
CM + PE + PSM (n = 4)	0.52 (0.34 to 0.68)	0.72 (0.55 to 0.83)	0.85 (0.74 to 0.92)
CE + CR + AF (n = 3)a	0.37 (0.24 to 0.54)	0.58 (0.42 to 0.73)	0.76 (0.63 to 0.87)
Sequential combinations of the most effective 5 QI strategies as estimated from the model for retinopathy screening
PE + PR	0.57 (0.34 to 0.77)	0.75 (0.55 to 0.89)	0.88 (0.74 to 0.95)
PE + PR + TC	0.67 (0.41 to 0.86)	0.83 (0.62 to 0.94)	0.92 (0.79 to 0.97)
PE + PR + TC + FR	0.76 (0.44 to 0.93)	0.88 (0.65 to 0.97)	0.94 (0.81 to 0.99)
PE + PR + TC + FR + EPR	0.81 (0.49 to 0.95)	0.91 (0.69 to 0.98)	0.96 (0.84 to 0.99)