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Table 2 Proportion of women meeting health outcomes (including changes over time) in each study arm (ITT and PP analyses)

From: Evaluation of the 'healthy start to pregnancy' early antenatal health promotion workshop: a randomized controlled trial

Health behaviors Analysis Baseline difference (HSP - UC) HSP 1 (n) HSP2 (n) HSP mean difference over time Usual care 1 (n) Usual care 2 (n) UC mean difference over time Between group difference, time 2: HSP - UC
Percentage of women meeting pregnancy fruit guidelines ITT* p = 0.66 8.5 (15) 7.3 (13) −1.2% 9.9 (18) 4.4 (8) - 5.5% +4.3%, p = 0.009
  PP* - 6.8 (6) 12.5 (11) +5.7% 9.9 (27) 3.7 (10) −6.2% +11.9%, p = 0.001
Percentage of women meeting pregnancy vegetable guidelines ITT p = 0.60 6.2 (11) 6.2 (11) 0% 4.9 (9) 4.9 (9) 0% 0%, p = 0.75
  PP - 9.1 (8) 11.4 (10) +2.3% 4.4 (12) 3.7 (10) −0.7% +3.0%, p = 0.13
Percentage of women with correct GWG knowledge ITT p = 0.57 0 (0) 1.1 (2) +1.1% 0 (0) 1.1 (2) +1.1% 0%, p = 0.63
  PP - 0 (0) 2.3 (2) +2.3% 0 (0) 0.7 (2) +0.7% +1.6%, p = 0.36
Percentage of women with correct GWG knowledge (‘rounded’) ITT p = 0.85 1.1 (2) 8.3 (9) +8.3% 1.1 (2) 4.8 (6) +4.8% +3.5%, p = 0.25
  PP* - 1.1(1) 10.2 (9) +9.1% 1.1 (3) 2.2 (6) +1.1% +8.0%, p = 0 . 009
Percentage of women meeting pregnancy physical activity guidelines ITT p = .33 44.9 (80) 37.1 (66) −7.8% 40.1 (73) 30.8 (56) −9.3% −1.5%, p= 0.66
  PP - 51.1 (45) 55.7 (49) +4.6% 39.7 (108) 26.8 (73) −12.9% +17.5%, p = 0.83
Percentage of women smoking before (pre) and during pregnancy ITT p = 0.97 (pre) p = 0.88 18.0 (32)(pre) 16.3 (29) 5.1 (9) −1.7% (pre) - 11.2% 18.1 (33) (pre) 17.0 (31) 7.7 (14) −1.1% (pre) −9.3% −2.3%, p=.41
  PP - 11.4 (10) 8.0 (7) 3.4 (3) +4.6% 20.2 (55) 19.5 (53) 7.4 (20) +12.1% - 7.5%, p=0.37
  1. * significant difference between groups over time; Differences were examined with independent group χ2 tests, including Fishers Exact tests for outcomes with cells <5 (GWG knowledge).