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Table 1 Perinatal factors for gout cases compared to matched population controls. Q quartile, SD standard deviation, n.s. non-significant

From: Association between perinatal factors and future risk for gout—a nested case-control study

Characteristic Cases, n=1399 Controls, n=5515 p value
Child sex, male, n (%) 1104 (79%) 4324 (78%) --
Age at first identified gout diagnosis, mean (SD) 33.3 (6.3) -- --
Age at first identified gout diagnosis, median (Q1, Q3), years 34 (29, 38) -- --
Year of birth, median (Q1, Q3) 1979 (1975, 1984) 1978 (1975, 1985) --
Maternal age, years, mean (SD) 26.6 (4.9) 26.8 (4.9) n.s.
Maternal stature cm, mean (SD) 167 (6.3) 166 (6.2) n.s.
Maternal BMI kg/m2, at start of pregnancy, mean (SD) 22.9 (3.5) 22.4 (3.3) 0.01
Birth weight, grams, mean (SD) 3472 (592) 3538 (565) 0.0001
Gestational age, days, mean (SD) 279 (13.6) 280 (13.1) n.s.
Number of older siblings, mean (SD) 0.9 (1.0) 0.88 (0.99) n.s.
Number of older siblings, median (Q1, Q3) 1 (0, 1) 1 (0, 1) --