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Table 4 Unadjusted arithmetic means (SD) of weekly total leisure-time physical activity (LTPA), moderate-to-vigorous-intensity LTPA and light-intensity LTPA and percentage of participants meeting physical activity (PA) recommendations for health at baseline and two follow-ups in the intervention (INT) and usual care group (UC)

From: Is intensive counseling in maternity care feasible and effective in promoting physical activity among women at risk for gestational diabetes? Secondary analysis of a cluster randomized NELLI study in Finland

N Baseline First follow-up Last follow-up Group difference in change from baseline to 26–28 weeks’ gestation Group difference in change from baseline to 36–37 weeks’ gestation
  Prior to pregnancy 26–28 weeks’ gestation 36–37 weeks’ gestation     
  INT UC INT UC INT UC Coeff./OR 95% CI Coeff./OR 95% CI
  215-218 167-174 212-215 178-179 190-192 156-158 p-value   p-value  
Total LTPA           
 Days/week 6.9 (3.5) 7.83) (3.8) 7.0 (3.6) 6.7 (3.6) 6.3 (3.5) 6.5 (3.5) 0.701) 0.03 to 1.36 0.101) −0.70 to 0.91
        0.040   0.80  
 Minutes/week 331 (298) 412 (315) 284 (210) 309 (292) 254 (227) 310 (289) 13.24 −33.20 to 56.67 −15.75 −75.15 to 43.65
        0.58   0.60  
Moderate-to-vigorous LTPA           
 Days/week 3.6 (2.5) 4.3 (2.7) 3.4 (2.3) 3.1 (2.6) 2.6 (2.3) 2.4 (2.5) 0.56 0.10 to 1.01 0.36 −0.14 to 0.86
        0.016   0.16  
 Minutes/week 169 (177) 212 (182) 133 (111) 132 (144) 96 (105) 101 (147) 18.21 −4.13 to 40.55 0.62 −25.59 to 26.83
        0.11   0.96  
Light LTPA           
 Days/week 3.4 (2.5) 3.5 (2.3) 3.5 (2.2) 3.6 (2.3) 3.6 (2.5) 4.1 (2.3) 0.06 −0.37 to 0.48 −0.36 −0.93 to 0.20
        0.80   0.21  
 Minutes/week 160 (219) 205 (252) 149 (171) 177 (213) 158 (189) 207 (201) −8.47 −44.69 to 27.75 8.91 −45.27 to 63.10
        0.65   0.75  
Meeting PA recommendations for health N (%) 4) 47 58 36 30 24 23 1.732) 0.98 to 3.05 1.122) 0.64 to 1.95
        0.06   0.70  
  1. Group differences indicated as coefficients (Coeff.)1) or odds ratios (OR)2), 95% confidence intervals (95% CI) and statistical significance levels (p-value).
  2. 1) Multilevel analysis (xtmixed) taking into account the intra-level variation in clusters (pairs), municipalities and nurses and adjusting group differences for participant’s baseline value of corresponding LTPA variable, age, BMI (≤25, >25 kg/m2), smoking status during pregnancy (no/yes), primiparity (no/yes), education (academic, polytechnic, basic) and working fulltime (no/yes).
  3. 2) Multilevel analysis (GLLAMM) taking into account the intra-level variation in pairs, municipalities and nurses and adjusting group differences for participant’s baseline value of meeting the PA recommendation (no/yes), age, BMI (≤25, >25 kg/m2), smoking status before and/or during pregnancy (no/yes), primiparity (no/yes), education (academic, polytechnic, basic) and working fulltime (no/yes).
  4. 3) Weekly number of days exceeds 7 because days of LTPA with various intensities have been summed up.
  5. 4) The minimum of 150 min of moderate-to-vigorous-intensity LTPA spread throughout at least 3 days a week.