Exploring the reach and program use of hello world, an email-based health promotion program for pregnant women in the Netherlands

Table 2 Dose received, dose delivered, and percentage of received quizzes opened versus lifestyle characteristics of participants

	Number of participants (n {%})	Dose received^b (Mean ± SD)	Dose delivered^c (Mean ± SD)	Received quizzes opened (%) (Mean ± SD)	≥3 quizzes opened (%)
All	4363
Completers^a	1369{31}	6.3 ± 2.7*	2.5 ± 2.3*	40 ± 33*	40
Non-completers	2994{69}	6.0 ± 2.8*	1.7 ± 2.0*	29 ± 30*	26
Lifestyle characteristics
Physical Activity	1355
Active	405{30}	6.1 ± 2.8	2.5 ± 2.4	40 ± 34	41
Inactive	950{70}	6.3 ± 2.7	2.6 ± 2.4	41 ± 33	61
Nutrition *(Fruit and Vegetables)*	1127
Sufficient	150{13}	6.5 ± 2.6	3.0 ± 2.5*	49 ± 34*	47
Insufficient	977{87}	6.2 ± 2.7	2.5 ± 2.4*	40 ± 36*	40
Nutrition *(Breakfast)*	1363
Regular	1196{88}	6.3 ± 2.7	2.5 ± 2.4	41 ± 34	40
Irregular	167{12}	6.2 ± 2.9	2.3 ± 2.3	36 ± 32	38
Smoking	1359
Active smoking	158{12}	6.0 ± 3.0	2.0 ± 2.2*	31 ± 30*	31
Passive smoking	174{13}	6.0 ± 2.9	2.2 ± 2.3*	37 ± 33*	36
Non-smoking	1027{75}	6.4 ± 2.6	2.7 ± 2.4*	42 ± 34*	42
Body Mass Index	1190
Underweight	47{4}	5.8 ± 2.8	1.7 ± 1.9*	31 ± 33	26
Normal weight	749{63}	6.6 ± 2.6	2.7 ± 2.4*	41 ± 33	43
Overweight	258{22}	6.3 ± 2.7	2.5 ± 2.3*	39 ± 34	39
Obese	136{11}	5.8 ± 2.9	2.6 ± 2.6*	46 ± 37	38
Number of healthy lifestyle characteristics	973
0	13{1}	5.7 ± 3.0	3.2 ± 2.4*	43 ± 36*	54
1	94{10}	6.0 ± 2.9	1.9 ± 2.3*	30 ± 32*	33
2	280{29}	6.2 ± 2.7	2.5 ± 2.4*	40 ± 34*	39
3	368{38}	6.5 ± 2.6	2.6 ± 2.3*	40 ± 33*	42
4	188{19}	6.2 ± 2.6	2.9 ± 2.5*	47 ± 36*	46
5	30{3}	6.3 ± 3.0	3.4 ± 2.7*	56 ± 35*	53

ISSN: 1756-0500