Simultaneous effects of birth weight and relative growth rate (determined by tertiles of conditional z scores) of the fetal (a) AC, (b) FL, and (c) HC on systolic blood pressure (mm Hg) at age 6, adjusted for current weight. Numbers in each tertile appear in parentheses; numbers of those with valid blood pressure recordings appear in italics in square brackets)
| Growth | Slow (163) | Medium (161) | Fast (167) | Total (491) |
|---|---|---|---|---|
| (a) AC | ||||
| Birth weight (kg) | ||||
| <3.3 (157) | 106.2 [39] | 104.6 [17] | 109.0 [10] | 106.6 [66] |
| 3.3–3.7 (173) | 104.7 [27] | 104.0 [33] | 104.8 [20] | 104.5 [80] |
| >3.7 (161) | 103.8 [9] | 102.2 [20] | 102.4 [44] | 102.6 [73] |
| Total (491) | 104.9 [75] | 103.6 [70] | 105.4 [74] | 104.7 [219] |
| Growth | Slow (172) | Medium (156) | Fast (178) | Total (506) |
|---|---|---|---|---|
| (b) FL | ||||
| Birth weight (kg) | ||||
| <3.5 (171) | 105.0 [19] | 106.7 [24] | 106.9 [26] | 106.2 [69] |
| 3.5–3.7 (165) | 107.4 [39] | 103.3 [26] | 103.4 [13] | 104.7 [78] |
| >3.7 (170) | 101.4 [17] | 104.0 [23] | 102.6 [42] | 101.0 [83] |
| Total (506) | 104.6 [76] | 104.0 [73] | 104.3 [81] | 104.1 [230] |
| Growth | Slow (136) | Medium (123) | Fast (134) | Total (393) |
|---|---|---|---|---|
| (c) HC | ||||
| Birth weight (kg) | ||||
| <3.4 (135) | 106.0 [30] | 109.7 [13] | 104.2 [12] | 106.6 [55] |
| 3.4–3.7 (127) | 101.2 [16] | 105.9 [25] | 105.2 [17] | 104.1 [59] |
| >3.7 (131) | 103.0 [16] | 101.4 [19] | 102.1 [32] | 102.2 [66] |
| Total (393) | 103.4 [62] | 105.7 [57] | 103.8 [61] | 104.3 [180] |