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. 2011 Jan 5;2010:754938. doi: 10.1155/2010/754938

Table 4.

Bivariate comparisons of key variables against unplanned c-section (N = 141).

Predictor Statistic P-Value (95% CI)
Number of pregnancy complications t = −.010 0.992 (−.41,.41)

Number of pregnancy complications that are linked to risk of C-Section t = 0.353 0.725 (−.20,.29)

Number of pregnancy complications that are not linked to risk of C-section t = −.292 0.771 (−.36,.27)

Labor duration t = 2.93 .004* (1.009, 5.16)

Infant birthweight t = −1.58 0.116 (−315.47, 34.9)

Gestational age t = −.269 0.789 (−.57,.43)

Maternal age t = .612 0.541 (−.97, 1.85)

Optimism subscale t = 2.004 0.047* (.012, 1.81)

Pessimism subscale t = −3.077 0.003* (−2.43 −.529)

Previous abortion Chi Square = .159 0.690

Previous miscarriage Chi Square = .059 0.809

Nonpregnancy-related health issues Chi Square = 1.42 0.232

Perception of pregnancy experience Chi Square = .098 0.952

Birth complications Chi Square = 6.65 0.010*

Education Chi Square = .307 0.858

Income Chi Square = 3.638 0.303

Insurance Chi Square = 5.229 0.073

*P < .05.