TABLE 1.

Patient Characteristics by Age-Group

Age ≤35 YearsAge >35 YearsAll Patients
Patients, n4966115
Weight at IUD placement, mean ± SD, lb225.0 ± 55.5271.5 ± 92.1252.2 ± 82.0
BMI at IUD placement, mean ± SD, kg/m245.9 ± 14.238.1 ± 8.142.8 ± 12.7
Nulligravid7 (14.3)11 (16.7)18 (15.6)
Nulliparous9 (18.4)18 (27.3)27 (23.4)
Insurance status
 Private15 (30.1)28 (42.4)43 (37.4)
 Public26 (53.1)28 (42.4)54 (46.9)
 Self-pay2 (4.1)5 (7.6)7 (6.1)
 Unknown6 (12.2)5 (7.6)11 (9.6)
Time of placement
 Interval clinic visit19 (38.8)32 (48.4)51 (44.4)
 Operating room6 (12.2)24 (36.3)30 (26.1)
 Postpartum17 (34.7)6 (9.1)23 (20)
  Vaginal delivery6 (12.2)3 (4.5)9 (7.8)
  Caesarean section11 (22.4)3 (4.5)14 (12.2)
 Post-abortion6 (12.2)0 (0)6 (5.2)
 Replacement1 (2.0)4 (6.1)5 (4.3)
Diabetes control pre-IUD placement
 Diabetic eye disease2 (4.3)4 (6.1)6 (6.9)
 Renal complications3 (7.7)3 (0.45)6 (4.3)
 Vascular insufficiency0 (0)3 (0.05)3 (2.6)
 Neuropathy0 (0)3 (0.05)3 (3.4)
Indication
 Contraception42 (85.7)23 (34.8)65 (56.5)
 Menorrhagia6 (12.2)41 (62.1)47 (40.9)
 Pain treatment1 (2.0)1 (1.5)2 (1.7)
 Cancer prophylaxis0 (0)1 (1.5)1 (0.9)
Medications at IUD placement
 ACE inhibitors4 (8.2)24 (36.4)28 (24.3)
 Angiotensin receptor blockers2 (4.1)13 (19.6)15 (13.0)
 β-Blockers6 (12.2)11 (16.6)17 (14.8)
 Calcium channel blockers4 (8.1)7 (10.6)11 (9.6)
 Diuretics7 (14.2)28 (42.4)35 (30.4)
 Insulin18 (36.7)28 (42.4)46 (40.0)
 Statins5 (10.2)30 (45.5)35 (30.4)
 Steroids1 (2.0)3 (4.5)4 (3.5)
 Thyroid replacement3 (6.1)7 (10.6)10 (8.7)
  • Data are n (%) unless otherwise indicated.