Table 5. Association (β) between concurrent BMI (per z-score increase in UK 1990 growth reference units in cohorts where data collection began in childhood or adolescence and per kilogram/metre² in adult cohorts) and SBP (millimetres of mercury) in each cohort based on models including BMI as a time-updated covariate.

Sex	Study	Age	β	95% CI
Male	ALSPACa	7 to 16	2.29	2.12, 2.46
	T-07 1972/1973a	15 to 37	3.63	3.01, 4.24
	T-07 1952/1953	34 to 60	0.85	0.59, 1.11
	NSHD	40	0.65	0.48, 0.82
		50	1.07	0.90, 1.25
	WHIIb	40	1.00	0.89, 1.12
		50	1.18	1.09, 1.27
		60	1.18	1.07, 1.29
		70	0.93	0.67, 1.19
	T-07 1932/1933	55 to 77	1.07	0.72, 1.43
	HAS	63 to 81	0.56	0.04, 1.08
	CaPSb	50	1.38	1.17, 1.59
		70	0.92	0.72, 1.10
Female	ALSPACa	7 to 16	2.53	2.36, 2.70
	T-07 1972/1973a	15 to 37	2.73	2.18, 3.28
	T-07 1952/1953	34 to 60	1.01	0.83, 1.20
	NSHD	40	0.47	0.33, 0.61
		50	0.76	0.63, 0.89
	WHIIb	40	0.54	0.40, 0.69
		50	0.82	0.72, 0.92
		60	0.86	0.74, 0.99
		70	0.61	0.33, 0.90
	T-07 1932/1933b	60	1.08	0.81, 1.34
		70	0.56	0.27, 0.84
	HAS	63 to 81	0.49	−0.09, 1.08

^aBeta is per z-score increase on the UK 1990 growth reference scale (28).

^bResults are presented at several ages in cohorts where there was evidence that the association between concurrent BMI and SBP differed across age.