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. Author manuscript; available in PMC: 2019 Feb 1.
Published in final edited form as: J Am Geriatr Soc. 2017 Nov 14;66(2):247–253. doi: 10.1111/jgs.15073

Table 1.

Characteristics of Participants According to Proton Pump Inhibitor Use Prior to Study Entrya,b

No PPI Use PPI use

N=3,082 N=402
Age, median (IQR) 74 (70, 80) 75 (70, 81)
Female 1809 (58.7) 260 (64.7)
White 2782 (90.3) 354 (88.3)
Years of education, median (IQR) 14 (12, 16) 16 (12, 18)
Obese (BMI≥30 kg/m2) 766 (25.4) 106 (27.5)
Current smoker 158 (5.1) 6(1.5)
Fair/poor self-rated health 453 (14.7) 79 (19.7)
Regular exercisec 2,226 (72.4) 259 (64.9)
Treated hypertensiond 1,831 (59.4) 308 (76.6)
Treated diabetese 250 (8.1) 41 (10.2)
Strokef 183 (5.9) 40 (10.0)
Coronary heart diseaseg 539 (17.5) 93 (23.1)
Depression (CES-D score ≥ 10)h 276 (9.1) 54 (14.0)
Slow gait speed (<0.6m/sec) 265 (8.6) 48 (12.2)
Difficulty with ≥ 1 ADLs 639 (20.8) 123 (30.9)
Hospital admission within 2 yrs 500(16.2) 111 (27.6)
Charlson comorbidity score
 0 2,113 (68.6) 216 (53.7)
 1 510 (16.5) 82 (20.4)
 2+ 459 (14.9) 104 (25.9)
Use of any NSAIDsi 2,243 (72.8) 307 (76.4)
Use of any anticholinergic medicationsi 2,367 (76.8) 337 (83.8)
At least 1 APOE ε4 allele 700 (25.8) 80 (24.0)

Abbreviations: BMI, body mass index; CES-D, Center for Epidemiologic Studies Depression; ADLs, Activities of Daily Living; NSAIDs, non-steroidal antiinflammatory drugs; IQR, interquartile range; PPI, Proton Pump Inhibitor.

a

Data are presented as N (%) unless otherwise noted. Column percentages based on non-missing data. Missing data for each variable: years of education (n=1), BMI (n=78), depression (n=57), smoking (n=8), regular exercise (n=9), self-rated health (n=7), slow gait speed (n=26), ADL (n=17) and APOE ε4 allele (n=435).

b

Use of PPIs was determined in the 10 years prior to baseline.

c

≥ 15 minutes of activity at least three times a week

d

Two or more fills in computerized pharmacy data for antihypertensive medications in 12 months prior to ACT study entry.

e

Two or more fills in computerized pharmacy data for insulin or oral diabetic medications in 12 months prior to ACT study entry.

f

Self-report or codes 430.X, 431.X, 432.X, 434.X, 436.X and 438.X from the International Classification of Diseases, Ninth Revision

g

Self-reported history of heart attack, angina, angioplasty, or coronary artery bypass surgery

h

Score of 10 or greater on the modified version of the Center for Epidemiologic Studies Depression (CES-D) questionnaire.

i

From computerized pharmacy data in the 10 years prior to ACT study entry.