Characteristics of men and women in the NCDS study sample
| Women | Men | ||||
|---|---|---|---|---|---|
| N (%) | Mean (SD) | N (%) | Mean (SD) | p Gender difference | |
| Cardiovascular risk factors | |||||
| BMI (kg/m2) | 3885 | 26.97 (5.45) | 3677 | 27.87 (4.12) | <0.001 |
| Waist:hip ratio | 3922 | 0.81 (0.06) | 3715 | 0.93 (0.06) | <0.001 |
| Systolic BP (mm Hg) | 3896 | 119.40 (16.30) | 3706 | 131.80 (15.29) | <0.001 |
| Diastolic BP (mm Hg) | 3896 | 74.82 (10.73) | 3706 | 81.33 (10.88) | <0.001 |
| Total cholesterol (mmol/L) | 3286 | 5.69 (0.99) | 3204 | 6.06 (1.14) | <0.001 |
| LDL cholesterol (mmol/L) | 3222 | 3.28 (0.86) | 2920 | 3.56 (0.93) | <0.001 |
| HDL cholesterol (mmol/L) | 3283 | 1.68 (0.40) | 3192 | 1.43 (0.33) | <0.001 |
| Triglycerides (mmol/L)* | 3279 | 1.30 (0.90, 2.00) | 3192 | 2.10 (1.40, 3.00) | <0.001 |
| HbA1c (%)* | 3332 | 5.10 (4.90, 5.30) | 3243 | 5.20 (5.00, 5.50) | <0.001 |
| C reactive protein (mg/L)* | 3145 | 0.94 (0.49, 1.90) | 3095 | 0.93 (0.42, 2.20) | 0.091 |
| Fibrinogen (g/L)* | 3245 | 2.95 (2.59, 3.38) | 3140 | 2.82 (2.48, 3.20) | <0.001 |
| vWF* | 3244 | 115 (91, 144) | 3151 | 120 (94, 148) | <0.001 |
| Age at first birth (years)† | |||||
| <20 | 546 (13.8) | <0.001 | |||
| 20–24 | 1420 (36.0) | ||||
| 25–29 | 1153 (29.1) | 1268 (34.1) | |||
| 30–34 | 496 (12.6) | 744 (19.7) | |||
| >34 | 337 (8.5) | 609 (16.1) | |||
| Mean (SD) | 25.37 (5.68) | 28.15 (5.89) | |||
*Median and IQR presented as measure is positively skewed.
†Age at first birth %s reported for those with at least one observed outcome (n=7682), n reported from first imputed data set as an indication of the number of participants in each group (the number will vary slightly across imputed data sets).
BMI, body mass index; BP, blood pressure; HbA1c, glycated haemoglobin; HDL, high density lipoprotein; LDL, low density lipoprotein; NCDS, National Child Development Study; vWF, von Willebrand Factor.