Table 1 Hospital admission for diarrhoea in the first 12 months of life and later mean blood pressure in adolescence and early adulthood (1982 Pelotas birth cohort)

	Systolic blood pressure (mm Hg)		Diastolic blood pressure (mm Hg)
	Unadjusted	Adjusted*	Unadjusted	Adjusted*
Follow-up at age 15 years (4.9%)†
Diarrhoea admission (n = 15)	119.0	119.6	70.5	71.8
No diarrhoea admission (n = 293)	114.3	114.0	68.1	67.2
p value for difference	0.14	0.11	0.39	0.14
Follow-up at age 18 years (6.4%)
Diarrhoea admission (n = 37)	134.1	134.7	78.5	78.4
No diarrhoea admission (n = 544)	134.8	135.1	77.1	76.1
p value for difference	0.77	0.89	0.49	0.35
Follow-up at age 19 years (2.8%)
Diarrhoea admission (n = 4)	104.8	91.8	64.8	52.0
No diarrhoea admission (n = 138)	113.6	113.9	71.7	71.7
p value for difference	0.09	0.01	0.15	0.14
Follow-up at age 23 years (6.5%)
Diarrhoea admission (n = 73)	118.2	124.7	74.7	79.3
No diarrhoea admission (n = 1058)	117.3	123.0	73.6	77.4
p value for difference	0.63	0.35	0.41	0.22

*Adjusted for sex, age, height and body mass index (all at the time of blood pressure measurement), birthweight and gestational age, maternal education and family income.
†Prevalence of diarrhoea during first 12 months of life in parentheses.