Baseline SBP ≤ 136 mmHg
Combinations of QI strategies (no. of arms)		Post‐intervention meana SBP mmHg (95% CrI)b	Absolute mean differencecSBP mmHg (95% CrI)
Five most common combinations of QI strategies observed in included studies reporting SBP
CM + PE + PSM (n = 18)		129.07 (127.93 to 130.22)	‐1.59 (‐2.82 to ‐0.33)
CM + TC + PE + PSM (n = 13)		128.17 (126.96 to 129.40)	‐2.49 (‐3.77 to ‐1.19)
CM + FR + PE + PSM (n = 87)		128.75 (127.32 to 130.18)	‐1.91 (‐3.46 to ‐0.35)
CM + FR + EPR + PE + PSM (n = 5)		128.67 (126.86 to 130.37)	‐2.00 (‐3.90 to ‐0.16)
CM + TC + PE + PSM + PR (n = 5)		128.61 (126.81 to 130.41)	‐2.06 (‐3.85 to ‐0.23)
Sequential combination of the model‐estimated five most effective QI strategies for SBP
TC + PE		129.05 (127.57 to 130.53)	‐1.62 (‐3.09 to ‐0.13)
TC + PE + PSM		128.52 (126.89 to 130.09)	‐2.14 (‐3.80 to ‐0.52)
TC + PE + PSM + CM		128.17 (126.96 to 129.40)	‐2.49 (‐3.77 to ‐1.19)
TC + PE + PSM + CM + FR		127.85 (126.35 to 129.36)	‐2.81 (‐4.42 to ‐1.20)
Baseline SBP > 136 mmHg
Combinations of QI strategies (no. of arms)	Post‐intervention meana SBP mmHg (95% CrI)d		Absolute mean differencec  SDP mmHg (95% CrI)
Five most common combinations of QI strategies observed in included studies reporting SBP
CM + PE + PSM (n = 12)		135.84 (134.17 to 137.48)	‐2.69 (‐4.37 to ‐1.03)
CM + TC + PE + PSM (n = 8)		134.02 (132.35 to 135.68)	‐4.51 (‐6.22 to ‐2.80)
CM + TC + PE (n = 5)		134.71 (132.78 to 136.62)	‐3.81 (‐5.75 to ‐1.90)
CM + FR + PE + PSM (n = 4)		135.41 (133.22 to 137.63)	‐3.12 (‐5.33 to ‐0.86)
CM + TC +FR + PE + PSM (n = 4)		133.61 (131.43 to 135.75)	‐4.93 (‐7.15 to ‐2.70)
Sequential combination of the model‐estimated five most effective QI strategies for SBP
CM + TC		134.82 (132.99 to 136.66)	‐3.70 (‐5.41 to ‐2.01)
CM + TC + PSM		134.14 (132.24 to 136.06)	‐4.39 (‐6.20 to ‐2.56)
CM + TC + PSM + FR		133.72 (131.30 to 136.16)	‐4.81 (‐7.17 to ‐2.40)
CM + TC + PSM + FR + CR		133.48 (130.48 to 136.53)	‐5.04 (‐8.02 to ‐1.98)