Table 1.

Time schedule lifestyle intervention

Week	Consultation Outpatient, telephone or e-mail	Counseling subject lifestyle program	Duration (minutes)
0	Randomisation	Baseline assessment1,2 and explanation lifestyle program; handout of web based food diary, pedometer and activity diary. Hand out of (cost) questionnaires Blood sample
1	Outpatient 1	Setting targets and planning goals; evaluating baseline measures1,2	45-60
3	Outpatient 2	Evaluating targets1	45-60
5	Telephone 1	Evaluating targets1	15
7	Outpatient 3	Evaluating targets1	30
9	Telephone or e-mail 2	Evaluating targets1	15
12	Outpatient 4	Evaluating targets1,2 Handout of (cost) questionnaires Blood sample	30
15	Telephone or e-mail 3	Evaluating targets1	15
18	Outpatient 5	Evaluating targets1	30
21	Telephone or e-mail 4	Evaluating targets1	15
24	Outpatient 6	Assessing targets and evaluation lifestyle program 1,2 Handout of (cost) questionnaires. Blood sample	30
> 24	Outpatient	Start subfertility treatment if applicable
52		(Cost) questionnaires
104		Cost questionnaire

¹ Measuring weight, waist and hip circumference

² Measuring blood pressure