Table 1.

Characteristics of women with type 1 diabetes in the Uro-EDIC cohort

	No. (%)*
Primary prevention cohort of DCCT:
Conventional	132 (48)
Intensive	146 (53)
Secondary intervention cohort of DCCT:
Conventional	138 (51)
Intensive	134 (49)
Yrs diabetes:
Median or greater (21.75)	290 (53)
Less than median (21.75)	260 (47)
Hba1c:
First quartile (4.4–7.0)	126 (23)
Second quartile (7.0–7.6)	149 (28)
Third quartile (7.6–8.6)	128 (24)
Fourth quartile (8.6–13.6)	135 (25)
Attained age:
20–29	8 (2)
30–39	169 (31)
40–49	248 (45)
50–59	125 (23)
Current smoking	74 (14)
Body mass index (kg/m2):
Normal (less than 25)	183 (34)
Overweight (25–less than 30)	222 (42)
Obese (30 or greater)	130 (24)
Waist circumference (cm):
Median (82.2) or greater	260 (50)
Less than median (82.2)	259 (50)
Postmenopausal†	124 (23)
Prior hysterectomy‡	66 (12)
Parity (No. live births):
0	165 (30)
1	112 (20)
2 or More	273 (50)
Peripheral neuropathy§	165 (32)
Retinopathy:||
None	18 (3)
Microaneurysm only	143 (26)
Very mild NPDR	215 (39)
Moderate or greater NPDR	174 (31)
Nephropathy EDIC yrs 9 + 10:¶
Normal (AER less than 40)	415 (76)
Microalbuminuria (AER 40–less than 300)	110 (20)
Albuminuria (AER 300 or greater)	25 (5)

^*All totals that do not add up to 550 imply that the information is missing for those subjects.

^†Defined as a subject’s menstrual periods ceasing and considered permanent.

^‡Defined as a subject’s menstrual period ceasing and considered permanent due to surgery.

^§Defined in EDIC by Michigan Neuropathy Screening Instrument as more than 6 positive responses on the questionnaire or a score greater than 2 on the examination.

^||Determined by Early Treatment Diabetic Retinopathy Study score.

^¶EDIC years 9 and 10 have been combined to represent the entire study sample.