Table 1 Characteristics of 979,223 patients who presented for the first time with low back pain by receipt of early physical therapy, from the Truven MarketScan database (2010–2014)

Age, yr

46 ± 11^a

47 ± 11^a

< 0.001

Female sex

56,186 (51)

488,903 (56)

< 0.001

 0

108,718 (98)

845,055 (97)

< 0.001

 1

2055 (1.8)

22,488 (2.6)

  > 2

61 (0.06)

846 (0.1)

 Full-time

54,741 (49)

421,312 (48)

< 0.001

 Part-time

1124 (1.0)

7679 (0.88)

 Early retiree

6259 (5.6)

47,675 (5.5)

 Other^b

48,710 (44)

391,723 (45)