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