Table 1 Baseline data on cases that later in life developed end-stage renal disease and referents

Cases and referents from both study populations

118

347

Number of men/women

66/52

194/153

Northern Sweden Health and Disease Study (NSHDS)

72

214

Malmoe Diet and Cancer Study (MDCS)

46

133

Characteristics at base-line examination, i.e. prior to diagnosis of end-stage renal disease:

Diabetes (y/n)

20 (21%)

8 (3%)

OR = 8.3^a (3.5, 22)

Blood pressure (mm Hg), mean(standard deviation)

 Systolic (SBP)

141 (21.3)

135 (19.9)

5.8 ^a (1.5, 10)

 Diastolic (DBP)

85.8 (11.5)

83.1 (9.6)

2.7 ^a (0.42, 5.0)

 Hypertension^b (y/n)

66 (54.6%)

125 (34.8%)

OR = 2.2^a (1.4, 3.5)

Smoking

p = 0.091^a

      Never-smoker

34 (31%)

141 (41%)

      Not current smoker (undefined ex-smoker or never-smoker)

11 (10%)

38 (11%)

      Ex-smoker

26 (24%)

79 (23%)

      Current smoker

39 (35%)

82 (24%)

Mean age at baseline^c (years)

63 (40–80)

63 (40–80)

Mean age at diagnosis of end-stage renal disease (years)

71 (46–87)

Time from baseline examination to development of end-stage renal disease (years)

7.7 (1–16)