Comparison of multiple and novel measures of dietary glycemic carbohydrate with insulin resistant status in older women

Table 1 Characteristics of subjects in the LAW study (n = 511)

Characteristic	Included in glycemic intake analysis (n = 329)	Not included in glycemic intake analysis (n = 182)	P
Age (years) (mean ± SD)	61.7 ± 10.4	60.7 ± 11.0	0.37
Activity level (valid %)^†
Active (walk or other activity ≥ 2/week)	66.0	63.9	0.68
Sedentary (walk or other activity <2/week)	34.0	36.1
Missing (n)	2	27
Menopausal and hormone therapy (HT) status (valid %)^†
Premenopausal	12.8	12.2	0.95
Using HT ≥ 12 months	43.8	46.3
Peri or postmenopausal, and using HT <12 months	43.4	41.5
Missing (n)	9	141
Smoking status (valid %)^†
Non-smoker	54.7	53.7	0.78
Ex-smoker	36.4	34.1
Current smoker	8.9	12.2
Missing (n)	2	141
Anthropometry (mean ± SD)
Body mass index (kg/m²)	26.5 ± 4.8	28.2 ± 5.8	<0.01
Waist to hip ratio	0.80 ± 0.1	0.81 ± 0.1	0.03

^†Valid % expresses the proportion of subjects with this characteristic when missing values are removed from both groups

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