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Table 1 Maternal characteristics for sample by intervention status

From: Evaluation of a Tennessee statewide initiative to reduce early elective deliveries using quasi-experimental methods

Maternal Characteristic Overall
(n = 283,173)
Intervention Period P-value
Pre
(n = 149,333)
Post
(n = 133,840)
Age, mean ± SD 26.6 ± 5.8 26.4 ± 5.9 26.7 ± 5.8 < 0.0001
Race, n (%) 0.0379
White 189,534 (66.9) 99,708 (66.8) 89,826 (67.1)  
Black 60,947 (21.5) 32,179 (21.6) 28,768 (21.5)  
Other 32,692 (11.5) 17,446 (11.7) 15,246 (11.4)  
Hispanic Ethnicity, n (%) 27,004 (9.5) 14,459 (9.7) 12,545 (9.4) 0.0052
More than a High School Education, n (%) 147,846 (52.2) 76,326 (51.1) 71,520 (53.4) < 0.0001
Insurance Type, n (%) < 0.0001
Private 143,306 (50.6) 74,704 (50.0) 68,602 (51.3)  
Medicaid 112,887 (39.9) 59,867 (40.1) 53,020 (39.6)  
Other 26,980 (9.5) 14,762 (9.9) 12,218 (9.1)  
Annual Income <$25,000, n (%) 105,231 (37.2) 54,973 (36.8) 50,258 (37.6) < 0.0001
Prenatal visits ≥5, n (%) 246,204 (86.9) 129,815 (86.9) 116,389 (87.0) 0.8043
Nulliparous, n (%) 117,108 (41.4) 62,327 (41.7) 54,781 (40.9) < 0.0001
  1. Abbreviations: SD standard deviation