Table 1

Comparison of children in different age-groups at the time of diagnosis of type 1 diabetes (N = 1,656)

0–4 years5–9 years10–14 yearsP<2 years≥2 yearsP
n (%)436 (26.3)629 (38.0)591 (35.7)103 (6.2)1,553 (93.8)
Boys (%)53.754.261.10.02060.256.30.438
Symptoms of diabetes >2 weeks (%)29.835.840.90.00628.236.50.140
Blood pH7.39 (7.34–7.40)7.38 (7.34–7.41)7.36 (7.27–7.40)<0.0017.36 (7.27–7.39)7.38 (7.33–7.40)0.001
Plasma glucose (mmol/l)*25.8 (24.8–26.9)24.6 (23.8–25.4)26.2 (25.3–27.2)0.17329.4 (26.8–32.1)25.3 (24.8–25.9)<0.001
DKA (%), pH <7.30*16.5 (14.7–18.3)14.6 (11.8–17.4)26.4 (22.8–30.0)<0.00130.1 (21.2–38.9)18.6 (16.6–20.6)0.004
Severe DKA (%), pH <7.10*3.7 (1.9–5.5)3.1 (1.7–4.5)5.9 (4.0–7.8)0.0487.8 (2.6–12.9)4.0 (3.0–5.0)0.070
BMI (kg/m2)
    With DKA14.4 (13.4–15.5)14.6 (13.2–16.2)§15.8 (14.2–17.8)15.1 (13.7–15.6)15.2 (13.7–17.0)#
    Without DKA14.8 (13.9–15.9)15.1 (14.0–16.6)16.9 (15.2–19.2)15.0 (14.1–16.0)15.5 (14.3–17.3)
  • Data are means (95% CI)

  • *, medians (interquartile range)

  • †, or proportions (95% CI).

  • P = 0.026.

  • §P = 0.065.

  • P < 0.001.

  • P = 0.295.

  • #P = 0.019.