Research Article

Intensive Blood Pressure Control and Diabetes Mellitus Incidence for Patients with Impaired Fasting Glucose: A Secondary Analysis of SPRINT

Table 1

Baseline characteristics of study participants.

CharacteristicsOverallStandard BP controlIntensive BP control value
N = 3310N = 1651N = 1659

Age67 (61, 75)67 (61, 75)67 (61, 75)0.8
Gender (female)962 (29%)494 (30%)468 (28%)0.3
BMI (kg/m^2)29.9 (26.9, 33.7)29.8 (27.0, 33.5)29.9 (26.7, 34.0)0.9
SBP (mmHg)138 (129, 148)138 (129, 148)137 (129, 148)0.5
DBP (mmHg)78 (70, 86)77 (70, 86)78 (70, 85)0.6
SBP tertile
 <132 mm·Hg1,166 (35%)560 (34%)606 (37%)0.2
 132−145 mm·Hg1,079 (33%)558 (34%)521 (31%)
 >145 mm·Hg1,065 (32%)533 (32%)532 (32%)
FRS (≥15%)2,156 (65%)1,075 (65%)1,081 (65%)>0.9
Race (black)855 (26%)429 (26%)426 (26%)0.8
Number of antihypertensive agents
 <21,191 (36%)604 (37%)587 (35%)0.5
 ≥22,119 (64%)1,047 (63%)1,072 (65%)
Aspirin1,774 (54%)867 (53%)907 (55%)0.2
Smoking status
 Never smoked1,428 (43%)722 (44%)706 (43%)0.8
 Former smoker1,515 (46%)741 (45%)774 (47%)
 Current smoker365 (11%)187 (11%)178 (11%)
 Missing data2 (<0.1%)1 (<0.1%)1 (<0.1%)
Baseline CKD892 (27%)457 (28%)435 (26%)0.3
Previous CVD683 (21%)337 (20%)346 (21%)0.8
eGFR (ml/min/1.73 m2)72 (59, 85)71 (58, 85)73 (59, 85)0.3
Serum creatinine (mg/dL)1.01 (0.87, 1.20)1.03 (0.86, 1.21)1.00 (0.87, 1.20)0.4
CHR (mg/dL)184 (159, 212)185 (160, 214)184 (158, 211)0.1
GLUR (mg/dL)106 (102, 112)106 (102, 111)106 (102, 112)0.12
HDL (mg/dL)48 (41, 57)48 (41, 57)48 (41, 57)0.4
TRR (mg/dL)115 (83, 163)114 (82, 162)115 (84, 164)0.9
Urine albumin-to-creatinine ratio (mg/g)9 (6, 21)9 (5, 22)10 (6, 20)0.7

Data were expressed as median (interquartile range) or number (percentage); BP: blood pressure; BMI: body mass index; SBP: systolic blood pressure; DBP: diastolic blood pressure; FRS: Framingham risk score; CKD: chronic kidney disease; CVD: cardiovascular disease; eGFR: estimated glomerular filtration rates; CHR: cholesterol; GLUR: glucose; HDL: high density lipoprotein cholesterol direct; TRR: triglycerides; to convert the values for creatinine to micromoles per liter, multiply by 88.4. To convert the values for cholesterol to millimoles per liter, multiply by 0.02586. To convert the values for triglycerides to millimoles per liter, multiply by 0.01129. To convert the values for glucose to millimoles per liter, multiply by 0.05551. Race and ethnic group were self-reported. BMI is the weight in kilograms divided by the square of the height in meters.