Table 1.
Baseline Characteristics of the Pooled Nurses’ Health Study Cohort Population (N=170,092) by Healthy Lifestyle Index Score (HLIS)
| Categories of Healthy Lifestyle Index Score (HLIS) | ||||||
|---|---|---|---|---|---|---|
|
| ||||||
| Participant Characteristics | 0 (least healthy) | 1 | 2 | 3 | 4 | 5 (most healthy) |
| Number of participants | 11,571 | 42,017 | 57,483 | 40,233 | 16,314 | 2,474 |
| Age (years), mean (SD)a | 46.7 (9.3) | 45.3 (9.9) | 43.6 (10.1) | 42.6 (10.0) | 41.3 (9.8) | 41.1 (9.6) |
| U.S. Census median income ($), mean (SD) | 41,959 (14,181) | 42,858 (14,759) | 44,726 (16,160) | 46,926 (17,492) | 49,030 (18,187) | 51,887 (19,343) |
| Nulliparous | 12.6 | 13.5 | 14.7 | 18.5 | 23.2 | 29.6 |
| Menopausal Status/Hormone use | ||||||
| Pre-menopausal | 65.4 | 66.7 | 67.6 | 68.1 | 69 | 69.3 |
| Post-menopausal/ever used post-menopausal hormones | 14.5 | 14.9 | 15.5 | 16.4 | 16.2 | 17.9 |
| HLIS Components | ||||||
| Packyears of smoking, mean (SD)b | 18.7 (16.4) | 18.9 (16.5) | 17.6 (15.8) | 15.5 (14.3) | 14.1 (13.5) | 0 |
| Alcohol consumption (grams/day), mean (SD) | 4.4 (10.0) | 4.4 (9.2) | 4.2 (7.6) | 4.9 (7.0) | 5.6 (5.6) | 8.6 (2.6) |
| BMI (kg/m2), mean (SD) | 30.5 (5.2) | 27.6 (5.7) | 24.6 (4.6) | 23.1 (3.3) | 22.2 (2.1) | 21.8 (1.6) |
| Physical activity (METc-hours/week), mean (SD) | 6.3 (5.1) | 9.1 (11.8) | 15.2 (19.5) | 26.8 (27.6) | 38.9 (32.7) | 46.6 (37.9) |
| AHEId score- mean (SD) | 37.3 (6.2) | 39.7 (8.4) | 43.1 (9.8) | 48.3 (9.9) | 53.0 (8.3) | 54.6 (6.5) |
SD: standard deviation
a
value is not age adjusted (all other values in table are age-adjusted).
b
among smokers only.
c
MET: Metabolic Equivalent of Task (1 MET= 1 kcal/kg/hour)
d
AHEI: Alternate Healthy Eating Index, score ranges 0–110