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An increased uterine contraction rate is associated with preterm labor. The contraction rate in individual patients, however, has not been evaluated critically as to its predictive value in forecasting early labor. In this randomized multicenter study, 105 patients at high risk for preterm delivery monitored their contraction rate at home on a daily basis. An analysis was conducted to determine the association of at least four contractions per hour on a routine strip followed by at least four contractions per hour on a repeat tracing with subsequent preterm labor. Using this threshold, 70% of the patients were correctly classified. This contraction rate resulted in a sensitivity of 57%, a specificity of 80%, a positive predictive value of 72%, and a negative predictive value of 68%. A threshold rate of at least four contractions per hour on a remonitor strip identifies a patient at increased risk for preterm labor (P = .003).
D L Bentley, and
J L Bentley, and
D L Watson, and
R A Welch, and
R W Martin, and
K S Gookin, and
R A Knuppel, and
M F Lake, and
W C Hill, and
A D Fleming
March 1990,
Obstetrics and gynecology,
D L Bentley, and
J L Bentley, and
D L Watson, and
R A Welch, and
R W Martin, and
K S Gookin, and
R A Knuppel, and
M F Lake, and
W C Hill, and
A D Fleming
June 2008,
Biology of reproduction,
D L Bentley, and
J L Bentley, and
D L Watson, and
R A Welch, and
R W Martin, and
K S Gookin, and
R A Knuppel, and
M F Lake, and
W C Hill, and
A D Fleming
August 2004,
American journal of physiology. Regulatory, integrative and comparative physiology,
D L Bentley, and
J L Bentley, and
D L Watson, and
R A Welch, and
R W Martin, and
K S Gookin, and
R A Knuppel, and
M F Lake, and
W C Hill, and
A D Fleming
February 1989,
Obstetrics and gynecology,
D L Bentley, and
J L Bentley, and
D L Watson, and
R A Welch, and
R W Martin, and
K S Gookin, and
R A Knuppel, and
M F Lake, and
W C Hill, and
A D Fleming
December 1971,
American journal of obstetrics and gynecology,
D L Bentley, and
J L Bentley, and
D L Watson, and
R A Welch, and
R W Martin, and
K S Gookin, and
R A Knuppel, and
M F Lake, and
W C Hill, and
A D Fleming
January 1956,
Akusherstvo i ginekologiia,
D L Bentley, and
J L Bentley, and
D L Watson, and
R A Welch, and
R W Martin, and
K S Gookin, and
R A Knuppel, and
M F Lake, and
W C Hill, and
A D Fleming
December 1962,
Journal of the Philippine Medical Association,
D L Bentley, and
J L Bentley, and
D L Watson, and
R A Welch, and
R W Martin, and
K S Gookin, and
R A Knuppel, and
M F Lake, and
W C Hill, and
A D Fleming
December 1987,
Obstetrics and gynecology,
D L Bentley, and
J L Bentley, and
D L Watson, and
R A Welch, and
R W Martin, and
K S Gookin, and
R A Knuppel, and
M F Lake, and
W C Hill, and
A D Fleming
April 2018,
Science translational medicine,
D L Bentley, and
J L Bentley, and
D L Watson, and
R A Welch, and
R W Martin, and
K S Gookin, and
R A Knuppel, and
M F Lake, and
W C Hill, and
A D Fleming
July 1984,
Akusherstvo i ginekologiia,
