Table 3

Subgroup Analysis Restricted to Patients With Complex Health Problems (n = 674)

CharacteristicAntihypertensive Treatment
Yes (n = 571)No (n = 103)
No.Change (95% CI)P ValueP TrendNo.Change (95% CI)P ValueP Trend
Cognitive function
 <130 mm Hg117Reference< .00120Reference.13
 130-150 mm Hg2580.99 (0.32-1.66).004601.90 (0.05-3.75).044
 >150 mm Hg1891.39 (0.68-2.11)<.001221.78 (−0.42 to 3.98).11
Daily function
 <130 mm Hg115Reference.5920Reference.65
 130-150 mm Hg254−0.18 (−1.57 to 1.20).7957−2.02 (−6.14 to 2.10).34
 >150 mm Hg188−0.40 (−1.88 to 1.09).6022−1.20 (−6.11 to 3.72).63
Quality of life
 <130 mm Hg117Reference.6119Reference.19
 130-150 mm Hg257−0.03 (−0.08 to 0.03).2160−0.11 (−0.23 to 0.01).08
 >150 mm Hg1900.01 (−0.05 to 0.07).9922−0.10 (−0.24 to 0.04).16
  • GARS = Groningen Activities Restriction Scale; MMSE = Mini-Mental State Examination; Reference = <130 mm Hg; SBP = systolic blood pressure.

  • Note: Associations of baseline systolic blood pressure and antihypertensive treatment with change in cognitive/daily function and quality of life after 1-year follow-up (n = 1,266). Multivariable mixed-effects regression model adjusted for sex, age, baseline MMSE/GARS/EQ-5D-3L, and accounting for clustering within family physicians.

  • Reading example: Patients undergoing antihypertensive treatment and with a baseline SBP >150 mm Hg had 1.39 points MMSE (95% CI, 0.68-2.11 points) less cognitive decline compared to patients undergoing antihypertensive therapy and with a baseline SBP <130 mm Hg (Reference).