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. 2018 Apr 6;28(8):1934–1945. doi: 10.1111/sms.13083

Table 2.

Crude and adjusted association between overall PA and MVPA in 5‐min bout according to potential correlates. The 2015 Pelotas (Brazil) Birth Cohort Study

Overall PA (mg) MVPA (5‐min bout: min/day)
Crude Adjustedc Crude Adjustedd
β 95%CI P β 95%CI P βe 95%CI P βe 95%CI P
Age (years)
 <20 ‐ ‐ .07a ‐ ‐ .92a ‐ ‐ <.001 a ‐ ‐ .001 a
20‐29 0.03 −0.89; 0.94 0.63 −0.42; 1.67 0.74 0.65; 0.84 0.84 0.72; 0.99
 30‐39 −0.67 −1.63; 0.29 0.66 −0.47; 1.79 0.57 0.49; 0.65 0.76 0.63; 0.90
 ≥40 −1.75 −3.76; 0.26 −1.25 −3.40; 0.90 0.61 0.45; 0.81 0.70 0.51; 0.97
Skin color
 White ‐ ‐ <.001 ‐ ‐ .45 ‐ ‐ <.001 ‐ .001
 Black/Brown/yellow/indigenous 1.23 0.55; 1.91 0.29 −0.46; 1.04 1.45 1.31; 1.58 1.21 1.08; 1.36
Marital status
 Living with a partner −0.47 −1.30; 0.37 .27 0.48 −0.42; 1.38 .30 0.68 0.60; 0.77 <.001 0.83 0.72; 0.94 .006
 Living without a partner ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐
Parity
 1 (primaparae) <.001 b .09b .008 b .40b
 2 0.93 0.19; 1.67 0.72 −0.19; 1.64 0.85 0.76; 0.95 0.99 0.75; 1.36
 3 2.50 1.36; 3.63 1.21 −0.31; 2.73 1.04 0.87; 1.23 1.08 0.76; 1.55
 ≥4 2.31 0.90; 3.73 0.77 −1.08; 2.62 1.14 0.92; 1.40 1.14 0.76; 1.68
Schooling (years)
 0‐4 ‐ ‐ <.001 a ‐ ‐ <.001 a ‐ ‐ <.001 a ‐ ‐ .001 a
 5‐8 −1.44 −2.68; −0.21 −1.81 −3.18; −0.43 0.95 0.79; 1.13 0.95 0.78; 1.17
 9‐11 −1.95 −3.11; −0.79 −2.86 −4.18 −1.53 0.81 0.68; 0.95 0.86 0.71; 1.05
 12+ −3.78 −4.95; −2.62 −4.35 −5.82; −2.89 0.54 0.45; 0.64 0.73 0.58; 0.90
SES (quintiles)
 Q1(poorest) ‐ ‐ <.001 a ‐ ‐ <.001 a ‐ ‐ <.001 a ‐ ‐ <.001 a
 Q2 −0.49 −1.60; 0.63 −0.31 −1.41; 0.79 0.91 0.78; 1.08 1.00 0.85; 1.17
 Q3 −1.76 −2.86; −0.66 −1.51 −2.64; −0.39 0.67 0.57; 0.79 0.76 0.65; 0.90
 Q4 −2.91 −4.00; −1.81 −2.51 −3.68; −1.35 0.59 0.50; 0.69 0.72 0.60; 0.85
 Q5 (wealthiest) −3.97 −5.07; −2.87 −3.47 −4.72; −2.22 0.42 0.36; 0.50 0.56 0.46; 0.68
Paid job during pregnancy
 Yes 1.51 0.91; 2.12 <.001 3.13 2.41; 3.84 <.001 0.90 0.82; 0.98 .01 1.16 1.05;1.30 .005
 No ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐
Self‐reported pre‐pregnancy LTPA (minutes/week)
 ≥150 −0.009 −0.89; 0.87 .98 0.06 −1.00; 1.12 .92 1.12 0.98; 1.28 .08 1.06 0.84; 1.35 .63
 <150 ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐
Pre‐pregnancy body mass index (kg/m2)
 Underweight (<18.5) ‐ ‐ .51b ‐ ‐ .07b ‐ ‐ .05b ‐ ‐ .39b
 Normal (18.5‐24.9) −0.08 −1.89; 1.72 0.80 −1.70; 3.30 0.96 0.74; 1.25 1.23 0.68; 2.23
 Overweight (25‐29.9) −0.25 −2.10; 1.59 0.002 −2.55; 2.55 0.84 0.64; 1.11 1.11 0.61; 1.99
 Obese (≥30) −0.75 −2.64; 1.15 −0.32 −2.93; 2.29 0.83 0.63; 1.07 1.09 0.60; 1.99
Smoking during pregnancy (number of cigarettes/day)
 Non‐smoker ‐ ‐ .84b ‐ ‐ .29b ‐ ‐ .74b ‐ ‐ .07b
 <5 0.78 −1.58; 3.14 −0.21 −2.76; 2.33 1.22 0.87; 1.70 1.01 0.65; 1.58
 5‐9 1.17 −1.58; 3.93 0.49 −2.41; 3.39 1.16 0.77; 1.75 0.88 0.50; 1.55
 10‐15 −0.66 −3.33; 2.00 −1.42 −4.28; 1.44 0.99 0.66; 1.46 0.77 0.49; 1.22
 >15 0.43 −2.80; 3.66 −1.53 −4.84; 1.77 1.12 0.70; 1.77 0.63 0.35; 1.12
Alcohol use during pregnancy
 Yes 0.28 −0.33; 0.89 .37 0.34 −0.49; 1.17 .43 1.09 1.00; 1.20 .05 0.97 −0.21; 1.16 .73
 No ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐
History of miscarriage
 Yes −0.44 −1.30; 0.42 .31 0.55 −0.63; 1.74 0.36 1.04 0.91; 1.19 .53 1.16 −0.03; 1.38 .11
 No ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐
History of preterm birth
 Yes 1.08 0.02; 2.13 .05 1.11 −0.39; 2.62 .15 1.11 0.95; 1.30 .19 1.13 −0.10; 1.42 .29
 No ‐ ‐ ‐ ‐ ‐ ‐ ‐ ‐
PA advice in prenatal care
 No ‐ ‐ <.001 b ‐ ‐ .02 b ‐ ‐ <.001 a ‐ ‐ .06a
 Yes—should to do PA −1.39 −2.07; −0.72 −0.27 −0.17; 0.63 0.87 0.79; 0.96 0.91 0.75; 1.12
 Yes—should to change or to reduce PA −1.82 −3.98; 0.33 −0.06 −2.52; 2.39 0.77 0.79; 1.07 1.11 0.60; 2.01
 Yes—should not to do PA −4.52 −6.42; −2.62 −3.59 −5.86; −1.31 0.52 0.56; 0.70 0.57 0.34; 0.93

MVPA, moderate‐to‐vigorous intensity physical activity; LTPA, leisure‐time physical activity; SES, socioeconomic status; PA, physical activity; min/day = minutes/day; CI, confidence interval mg; gravitational equivalent expressed in milli‐g (1000 mg = 1 g = 9.81 m/s2).

a

Test of linear trend.

b

Test of heterogeneity.

c

Adjusted for SES, schooling, paid job during pregnancy, parity smoking during pregnancy and PA advice during prenatal care.

d

Adjusted for age, skin color, marital status, SES, schooling, paid job during pregnancy, smoking during pregnancy, history of miscarriage and preterm birth and PA advice during prenatal care.

e

Analyses were performed using log‐transformed, and the results are presented as geometric means.