Table 5.
Adjusted mean (SE) mean arterial pressure (MAP), by trimester and nightly hours of sleep during early pregnancy, after stratification by parity, Seattle, Washington, 2003 - 2006
| First Trimester |
Second Trimester |
Third Trimester |
||||
|---|---|---|---|---|---|---|
| All Women (N = 1,272) | ||||||
| Sleep group h/night | 1Adjusted Mean [SE] | Δ (95% CI) | 1Adjusted Mean [SE] | Δ (95% CI) | 1Adjusted Mean [SE] | Δ (95% CI) |
| 9 h | 80.42 [0.36] | 80.17 [0.32] | 82.59 [0.38] | |||
| ≤ 6 h | 81.51 [0.57] | 1.09 (0.0 to 2.2) | 80.22 [0.56] | 0.05 (−1.0 to 1.1) | 85.77 [0.59] | 3.18 (2.0 to 4.3) |
| 7-8 h | 80.81 [0.40] | 0.39 (−0.4 to 1.2) | 79.70 [0.38] | −0.47 (−1.2 to 0.3) | 84.79 [0.40] | 2.20 (1.4 to 3.0) |
| ≥ 10 h | 81.06 [0.61] | 0.64 (−0.6 to 1.8) | 80.29 [0.54] | 0.12 (−0.9 to 1.2) | 86.24 [0.61] | 3.65 (2.5 to 4.8) |
| Nulliparous Women (N = 771) | ||||||
| Sleep group h/night | 2Adjusted Mean [SE] | Δ (95% CI) | 2Adjusted Mean [SE] | Δ (95% CI) | 2Adjusted Mean [SE] | Δ (95% CI) |
| 9 h | 79.64 [0.62] | 76.78 [0.93] | 82.08 [0.86] | |||
| ≤ 6 h | 81.45 [0.84] | 1.81 (0.2 to 3.4) | 75.68 [1.24] | −1.10 (−3.5 to 1.3) | 86.62 [1.05] | 4.55 (2.5 to 6.6) |
| 7-8 h | 80.28 [0.68] | 0.66 (−0.7 to 2.0) | 72.78 [0.78] | −4.00 (−5.5 to 2.5) | 84.50 [0.70] | 2.42 (1.0 to 3.8) |
| ≥ 10 h | 81.07 [0.94] | 1.44 (−0.4 to 3.3) | 74.88 [1.11] | −1.90 (−4.1 to 0.3) | 87.01 [0.89] | 4.93 (3.2 to 6.7) |
| Multiparous Women (N = 501) | ||||||
| Sleep group h/night | 3Adjusted Mean [SE] | Δ (95% CI) | 3Adjusted Mean [SE] | Δ (95% CI) | 3Adjusted Mean [SE] | Δ (95% CI) |
| 9 h | 80.17 [0.65] | 75.32 [1.17] | 79.63 [0.80] | |||
| ≤ 6 h | 80.26 [1.04] | 0.11 (−1.9 to 2.1) | 69.70 [1.37] | −5.63 (−8.3 to 2.9) | 80.48 [1.04] | 0.95 (−1.1 to 3.0) |
| 7-8 h | 80.13 [0.71] | −0.04 (−1.4 to 1.4) | 71.62 [0.78] | −3.70 (−5.2 to 2.2) | 79.75 [0.73] | 0.22 (−1.2 to 1.7) |
| ≥ 10 h | 80.07 [1.22] | −0.10 (−2.5 to 2.3) | 72.77 [1.58] | −2.55 (−5.6 to 0.5) | 81.56 [1.12] | 2.22 (−0.2 to 4.2) |
Adjusted for maternal age, race/ethnicity, parity, educational attainment, and pre-pregnancy body mass index. The adjusted mean values reported are from a regression model based on the entire study cohort (N = 1,272) with indicators variables specified to represent Non-Hispanic white, nulliparous, college educated women 25-34 years of age, with a pre-pregnancy BMI < 25 kg/m2.
Adjusted for maternal age, race/ethnicity, educational attainment, and pre-pregnancy body mass index. The adjusted mean values reported are from a regression model based on nulliparous women only (N = 771) with indicators variables specified to represent Non-Hispanic white, college educated women 25-34 years of age, with a pre-pregnancy BMI < 25 kg/m2.
Adjusted for maternal age, race/ethnicity, educational attainment, and pre-pregnancy body mass index. The adjusted mean values reported are from a regression model based on multiparous women only (N = 501) with indicator variables specified to represent Non-Hispanic white, college educated women 25-34 years of age, with a pre-pregnancy BMI < 25 kg/m2.