Table 1.
(A) Reference population for girls; (B) Reference population for boys
| Variable | N | Mean | 95% | SD | Skewnes | P‐value |
|---|---|---|---|---|---|---|
| (A) | ||||||
| Gestational age, days | 763 | 281.1 | 280.4‐281.7 | 9.16 | 0.31 | 0.4369 |
| Birth weight, gram | 763 | 3563 | 3528‐3598 | 495 | 0.25 | <.0001 |
| Birth length, cm | 763 | 50.23 | 50.09‐50.38 | 2.00 | 0.09 | <.0001 |
| Emax, cm | 763 | 62.82 | 62.62‐63.02 | 2.84 | 0.23 | .6877 |
| Etimescale | 763 | 0.99 | 0.98‐1.00 | 0.09 | 0.19 | <.0001 |
| Qmax, cm | 763 | 98.66 | 98.10‐99.22 | 7.85 | 0.12 | .0453 |
| AgeTPHV, years | 759 | 11.80 | 11.73‐11.87 | 1.00 | ‐0.04 | .0141 |
| Menarche, years | 720 | 12.88 | 12.79‐12.98 | 1.29 | 0.04 | .1676 |
| AgeP5, years | 763 | 9.82 | 9.75‐9.89 | 1.00 | ‐0.01 | .0130 |
| AgeP50, years | 763 | 12.04 | 11.97‐12.11 | 0.99 | ‐0.02 | .0136 |
| Pmax, cm | 763 | 12.96 | 12.71‐13.22 | 3.55 | 0.15 | .6885 |
| Tmax, cm | 763 | 168.21 | 167.75‐168.66 | 6.38 | 0.11 | .0016 |
| Adult height, cm | 763 | 168.56 | 168.11‐169.02 | 6.40 | 0.14 | .0020 |
| Height of mother, cm | 748 | 167.20 | 166.79‐167.60 | 5.68 | 0.17 | .8279 |
| Height of father, cm | 717 | 181.68 | 181.20‐182.16 | 6.54 | ‐0.03 | .0285 |
| (B) | ||||||
| Gestational age, days | 809 | 281.0 | 280.3‐281.6 | 9.31 | ‐0.36 | .6804 |
| Birth weight, gm | 809 | 3691 | 3655‐3725 | 500 | 0.16 | <.0001 |
| Birth length, cm | 809 | 51.0 | 50.9‐51.2 | 2.10 | 0.18 | <.0001 |
| Emax, cm | 809 | 65.1 | 64.9‐65.3 | 2.70 | 0.03 | .8376 |
| Etimescale | 809 | 0.98 | 0.98‐0.99 | 0.09 | 0.03 | <.0007 |
| Qmax, cm | 809 | 105.6 | 105.1‐106.1 | 7.59 | 0.16 | .0491 |
| AgeTPHV, years | 809 | 13.67 | 13.60‐13.74 | 0.96 | 0.01 | .0028 |
| AgeP5, years | 809 | 11.80 | 11.73‐11.87 | 0.97 | ‐0.02 | .0028 |
| AgeP50, years | 809 | 13.81 | 13.75‐13.88 | 0.96 | 0.02 | .0027 |
| Pmax, cm | 809 | 17.3 | 17.0‐17.5 | 3.71 | ‐0.17 | .4059 |
| Tmax, cm | 809 | 181.8 | 181.3‐182.2 | 6.41 | 0.09 | .0003 |
| Adult height, cm | 809 | 182.0 | 181.6‐182.5 | 6.42 | 0.10 | .0004 |
| Height of mother, cm | 745 | 167.4 | 167.0‐167.8 | 5.89 | ‐0.05 | .1373 |
| Height of father, cm | 709 | 181.2 | 180.7‐181.71 | 6.77 | 0.16 | .0941 |
(A) Healthy girls and (B) healthy boys born in around 1990 to non‐smoking mothers for whom good quality longitudinal data were available. Descriptive data and statistical comparison with Tables S2a and S2b (smoking mothers during pregnancy). No variable was statistically different to Tables S3a and S2b (all mothers, independent of smoking, respectively).
Abbreviations: Adult height, Team‐measured adult height, and if Tmax was higher, the difference was added; AgeP5(50), age at which 5 (50)% of the P‐function is reached; CI, confidence interval; E (Q,P,T) max, maximum of E (Q,P,T) function; SD, standard deviation; TPHV, from Total curve estimated Peak Height Velocity.