Table 3—

SFRs and corresponding 95% CIs, stratified by calendar period at follow-up, attained age at follow-up, and presence of any diabetes complications, among women first hospitalized for type 1 diabetes at age ≤16 years, grouped by calendar period at first hospitalization before 1985 or in 1985 and thereafter, 1965–2004, Sweden

Calendar year at first hospitalization before 1985
Calendar year at first hospitalization during or after 1985
Live birthsSFR (95% CI)Live births
SFR (95% CI)
ExpectedObservedExpectedObserved
Calendar period at follow-up
    1965–19792121580.75 (0.63–0.87)
    1980–19891,0106790.67 (0.62–0.73)591.93 (0.88–3.67)
    1990–19992,0561,5940.78 (0.74–0.81)3113221.03 (0.92–1.15)
    2000–20048706930.80 (0.74–0.86)5765580.97 (0.89–1.05)
Attained age at follow-up
    16–19 years1391140.82 (0.68–0.99)66701.06 (0.83–1.34)
    20–24 years9837990.81 (0.76–0.87)3453591.04 (0.94–1.16)
    25–29 years1,5651,2080.77 (0.73–0.82)3603611.00 (0.90–1.11)
    30–34 years1,0967750.71 (0.66–0.76)120980.82 (0.67–1.00)
    35–39 years3302080.63 (0.55–0.72)210.54 (0.01–2.99)
    40–48 years35200.57 (0.35–0.88)
Presence of diabetes complications*
    No3,0712,4400.79 (0.76–0.83)8058221.02 (0.95–1.09)
    Yes1,0776840.64 (0.59–0.68)87670.77 (0.60–0.98)
  • The age- and calendar year–matched Swedish women at large were used as reference. The SFRs are thus inherently adjusted for attained age and calendar year.

  • *

    * Including ophthalmic complications, diabetic nephropathy, neurological complications, and cardiovascular complications.