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. Author manuscript; available in PMC: 2020 May 13.
Published in final edited form as: Ann Intern Med. 2019 Jul 30;171(4):248–256. doi: 10.7326/M18-3136

Table 4:

Sensitivity and subgroup analyses, Hazard Ratio (95% CI) *

SGLT2 v DPP4
(Cohort 1)
SGLT2 v GLP1
(Cohort 2)
Sensitivity analyses
Propensity Score specification
1:1 nearest neighbor 0.98 (0.68, 1.41) 0.72 (0.53, 0.99)
1:N variable ratio 0.88 (0.59, 1.31) 0.68 (0.46, 1.00)
Fine stratification 0.79 (0.61, 1.02) 0.74 (0.55, 0.98)
Intention to treat analysis
3 months 1.00 (0.50, 1.98) 0.49 (0.28, 0.86)
6 months 0.83 (0.52, 1.34) 0.62 (0.41, 0.92)
12 months 0.82 (0.58, 1.17) 0.64 (0.47, 0.88)
Any duration 0.85 (0.63, 1.16) 0.67 (0.51, 0.88)
As treated analysis
3 months 0.93 (0.46, 1.89) 0.54 (0.31, 0.95)
6 months 0.97 (0.58, 1.65) 0.70 (0.46, 1.06)
12 months 0.99 (0.66, 1.47) 0.76 (0.54, 1.06)
Any duration 0.98 (0.68, 1.41) 0.72 (0.53, 0.99)
Subgroup analysis e
Exclusion criteria
No major risk factors§ 0.92 (0.55, 1.51) 0.64 (0.41, 1.01)
Active ingredient
Canagliflozin 0.83 (0.57, 1.21) 0.66 (0.47, 0.92)
Dapagliflozin 0.57 (0.29, 1.14) 0.52 (0.28, 0.97)
Gender
Male 0.66 (0.37, 1.20) 0.72 (0.40, 1.29)
Female 0.77 (0.51, 1.17) 0.76 (0.53, 1.10)
Age
Age <60 0.78 (0.49, 1.25) 0.75 (0.47, 1.20)
Age >=60 1.09 (0.64, 1.84) 0.79 (0.51, 1.23)
Frailty§
Low frailty 1.00 (0.46, 2.15) 1.12 (0.58, 2.16)
Medium frailty 0.60 (0.33, 1.09) 0.59 (0.31, 1.10)
High Frailty 0.84 (0.49, 1.43) 0.64 (0.40, 1.02)

DPP4: Dipeptidyl peptidase-4 inhibitors; GLP1: Glucagon-like peptide 1 agonists; HR: Hazard Ratio; SGLT2: Sodium Glucose Cotransporter-2 inhibitors

*

For the subgroup analysis, propensity Score was re-estimated within each subgroup and patients were re-matched on the new re-estimated score. Estimates were pooled across the two databases using fixed effects meta-analysis See Appendix Figures 6 and 7 for database-specific estimates.

1:1 NN is primary analysis, a parallel balanced variable ratio matching approach was used; fine stratification utilized 50 strata

Indicates the primary analysis

§

Patients without evidence of any antibiotic or DMARD use or history of any infections were included for analysis

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Patients were stratified into three groups based on their estimated frailty score; see text for details.