Table 2.

Prevalence rates of risk factor exposure among Dutch women per age category (in 2000–2001)

Risk factor	Prevalence (%)				Source
	40–50 years	50–60 years	60–70 years	>70 years
BMI (kg/m2)					Ongoing national survey on living conditions and welfare (Dutch acronym POLS) [15]
<25	60	51	43	44
25–30	30	35	42	41
>30	10	14	15	15
Number of people in the surveya	744	612	440	340
Physical inactivityb					National survey on accidents and physical activity (Dutch acronym OBIN) [16]
Active 5 days/week	46	47	44	42
Active 3–4 days/week	27	28	28	23
Active 1–2 days/week	21	18	19	17
Inactive	6	6	9	17
Number of people in the survey	808	845	688	557
Alcohol (glass/day)					Ongoing national survey on living conditions and welfare (Dutch acronym POLS) [15]
Never drinker	17	18	28	39
<1	49	44	50	45
1–3	32	36	36	16
4+	3	2	2	0
Number of people in the survey	569	534	368	265
Smoking					STIVORO, national survey on adult smoking behaviour [17]
Never	46	51	65	72
Past	18	19	16	13
Current	36	30	20	15
Number of people in the survey	2041	1407	1466	1676
Dietary fibre (grams/day)c					Dutch National Food Consumption Survey (Dutch acronym VCP 1997/1998) [14]
>3.4	15	21	28	23
2–3.4	54	60	56	64
<2	31	20	16	14
Number of people in the survey	579	369	265	249

The presented numbers are rounded, and may therefore not always add up to 100 %

^aBMI: number of people in the survey were calculated by the reported standard error of the prevalence rates

^bActive is defined as at least 30 min of moderate to vigorous physical activity per day, including occupational and non-occupational activities

^cPrevalence rates of low-fibre intake are based on the years 1997–1998