Table 1. Demographics of Women with Mirena Intrauterine Devices Placed and Removed, 2005–2012
VariableIUD UseP Value
Total (n = 148)Patient-Initiated (n = 106)Clinician-Initiated (n = 42)
Race, n (%).709
    Non-Hispanic white102 (69)74 (70)28 (67)
    Other46 (31)32 (30)14 (33)
Insurance, n (%).246
    Public46 (31)30 (28)16 (38)
    Private102 (69)76 (72)26 (62)
Age at placement (years), mean (SD)31 (8)32 (9)30 (8).137
Duration of use (days), mean (SD)495 (553)628 (593)159 (179)<.001
  • IUD, intrauterine device; SD, standard deviation.