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. Author manuscript; available in PMC: 2016 Mar 22.
Published in final edited form as: J Diabetes Complications. 2014 Apr 16;28(5):742–749. doi: 10.1016/j.jdiacomp.2014.04.003

Table 3.

Hypoglycemia adjusted for HbA1c at endpoint.

n
(%)
Glargine
(n = 498)
NPH
(n = 486)
Unadjusted odds ratio
(95% CI)
p valuea Odds ratio (95% CI) adjusted for HbA1c at endpoint p valuea
Incidence of people experiencing at least one hypoglycemia event and odds ratios
 Total (all symptomatic)    389 (78.1%)    405 (83.3%) 0.71 (0.52, 0.98)   0.039 0.74 (0.54, 1.02)   0.070
 Symptomatic <2.0 mmol/L (<36 mg/dL)    153 (30.7%)    183 (37.7%) 0.73 (0.56, 0.96)   0.022 0.76 (0.58, 0.99)   0.038
 Symptomatic <3.9 mmol/L (<70 mg/dL)    358 (71.9%)    380 (78.2%) 0.71 (0.53, 0.95)   0.023 0.74 (0.55, 1.00)   0.048
 Severe      40 (8.0%)      60 (12.3%) 0.62 (0.41, 0.95)   0.026 0.64 (0.42, 0.97)   0.035
 All daytime    326 (65.5%)    354 (72.8%) 0.71 (0.54, 0.93)   0.012 0.74 (0.56, 0.97)   0.030
 All nocturnal    269 (54.0%)    282 (58.0%) 0.85 (0.66, 1.09)   0.206 0.86 (0.67, 1.11)   0.259
Rates of hypoglycemia per patient-yearb
Unadjusted rate ratio
(95% CI)
p valuea Rate ratio (95% CI) adjusted for HbA1c at endpoint p valuea

 Total (all symptomatic)c 5.346 (0.389) 7.449 (0.547) 0.71 (0.58, 0.87) <0.001 0.72 (0.59, 0.88)   0.001
 Symptomatic <2.0 mmol/L (<36 mg/dL) 0.312 (0.039) 0.793 (0.095) 0.40 (0.29, 0.56) <0.001 0.39 (0.28, 0.55) <0.001
 Symptomatic <3.9 mmol/L (<70 mg/dL) 4.845 (0.384) 6.785 (0.543) 0.70 (0.56, 0.87)   0.002 0.71 (0.57, 0.89)   0.003
 Severec 0.041 (0.008) 0.065 (0.012) 0.63 (0.38, 1.07)   0.087 0.63 (0.37, 1.07)   0.085
 All daytimec 3.843 (0.290) 5.426 (0.413) 0.69 (0.56, 0.86) <0.001 0.71 (0.57, 0.88)   0.001
 All nocturnalc 1.514 (0.141) 2.017 (0.189) 0.75 (0.58, 0.97)   0.028 0.75 (0.58, 0.97)   0.030

Intention-to-treat population. HbA1c = glycosylated hemoglobin; NPH = neutral protamine Hagedorn; CI = confidence interval.

a

Two-sided p value for the null hypothesis: odds ratio = 1 or rate ratio = 1, respectively.

b

Hypoglycemia rates per patient-year from negative binomial regression.

c

Standard error shown in parentheses.