Table 24Clinical evidence profile: Treatment versus no treatment at systolic blood pressure threshold of 140–159 mmHg (without type 2 diabetes)

Quality assessmentNo of patientsEffectQualityImportance
No of studiesDesignRisk of biasInconsistencyIndirectnessImprecisionOther considerationsTreatmentNo treatment (no diabetes)Relative (95% CI)Absolute3
Mortality - 140–159mmHg (follow-up median 5.8 years)
1observational studiesno serious risk of biasno serious inconsistencyvery serious1no serious imprecisionnone

860/19143

(4.5%)

781/19143

(4.1%)

HR 1.02 (0.88 to 1.18)41 more per 1000 (from 5 fewer to 7 more)

⨁◯◯◯

VERY LOW

CRITICAL
Stroke - 140–159mmHg (follow-up median 5.8 years)
1observational studiesno serious risk of biasno serious inconsistencyvery serious1serious2none

292/19143

(1.5%)

285/19143

(1.5%)

HR 0.97 (0.78 to 1.21)40 fewer per 1000 (from 3 fewer to 3 more)

⨁◯◯◯

VERY LOW

CRITICAL
Myocardial Infarction - 140–159mmHg (follow-up median 5.8 years)
1observational studiesno serious risk of biasno serious inconsistencyvery serious1no serious imprecisionnone

276/19143

(1.4%)

279/19143

(1.5%)

HR 1 (0.8 to 1.25)40 fewer per 1000 (from 3 fewer to 4 more)

⨁◯◯◯

VERY LOW

CRITICAL
Heart failure - 140–159mmHg (follow-up median 5.8 years)
1observational studiesno serious risk of biasno serious inconsistencyvery serious1serious2none

169/19143

(0.88%)

131/19143

(0.68%)

HR 1.34 (0.96 to 1.87)42 more per 1000 (from 0 fewer to 6 more)

⨁◯◯◯

VERY LOW

IMPORTANT
Non-MI acute coronary syndrome - 140–159mmHg (follow-up median 5.8 years)
1observational studiesno serious risk of biasno serious inconsistencyvery serious1very serious2none

61/19143

(0.32%)

56/19143

(0.29%)

HR 1.19 (0.74 to 1.91)41 more per 1000 (from 1 fewer to 3 more)

⨁◯◯◯

VERY LOW

IMPORTANT
Hypotension - 140–159mmHg (follow-up median 5.8 years)
1observational studiesno serious risk of biasno serious inconsistencyvery serious1no serious imprecisionnone

268/19143

(1.4%)

161/19143

(0.84%)

HR 1.69 (1.3 to 2.2)46 more per 1000 (from 3 more to 10 more)

⨁◯◯◯

VERY LOW

IMPORTANT
Acute Kidney Injury - 140–159mmHg (follow-up median 5.8 years)
1observational studiesno serious risk of biasno serious inconsistencyvery serious1serious2none

194/19143

(1%)

144/19143

(0.75%)

HR 1.37 (1 to 1.88)43 more per 1000 (from 0 more to 7 more)

⨁◯◯◯

VERY LOW

IMPORTANT
1

Downgraded by 1 or 2 increments because the majority of the evidence included an indirect or very indirect population respectively.

2

Downgraded by 1 increment if the confidence interval crossed 1 MID or by 2 increments if the confidence interval crossed both MIDs.

3

Absolute effects calculated by inputting raw event data from median follow up time into GRADE.

4

Evidence based on one study that reported HRs with raw event data.

From: Evidence review for initiating treatment

Cover of Evidence review for initiating treatment
Evidence review for initiating treatment: Hypertension in adults: diagnosis and management: Evidence review C.
NICE Guideline, No. 136.
National Guideline Centre (UK).
Copyright © NICE 2019.

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