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. Author manuscript; available in PMC: 2011 Feb 1.
Published in final edited form as: JAMA. 2010 Feb 24;303(8):747–753. doi: 10.1001/jama.2010.168

Table 1.

Mean Self-reported Hours Worked per Week by Physicians for Selected Years by Resident Status, Sex, Age, and Work Settinga

Mean Hours per Week (95% CI)
Characteristics Total No. of
Observationsb
1976–1978
(n = 7812)
1986–1988
(n = 9763)
1996–1998
(n = 10 247)
2006–2008
(n = 12 469)
% Change Between
1996–1998 and
2006–2008 (95% CI)
All physicians 40 291 55.2 (54.4–55.9) 55.6 (54.8–56.3) 54.9 (54.2–55.7) 51.0 (50.3–51.7) −7.2 (−5.3 to −9.0)

  Nonresident physiciansc 33 625 53.6 (52.8–54.4) 53.3 (52.5–54.1) 52.6 (51.9–53.4) 49.6 (48.9–50.4) −5.7 (−3.8 to −7.7)

  Resident physiciansc 6666 60.8 (59.0–62.6) 65.0 (63.1–66.9) 65.7 (63.7–67.8) 59.3 (57.4–61.1) −9.8 (−5.8 to −13.7)

Excluding resident physicians
    Age <45 y 15 155 55.9 (54.7–57.0) 55.3 (54.2–56.4) 54.2 (53.2–55.3) 50.2 (49.1–51.3) −7.4 (−4.7 to −10.2)

    Age ≥45 y 18 470 51.7 (50.7–52.8) 51.1 (50.0–52.2) 51.2 (50.1–52.3) 49.3 (48.3–50.2) −3.7 (−1.0 to −6.5)

    Men 26 682 54.6 (53.8–55.4) 54.4 (53.6–55.2) 54.4 (53.6–55.3) 51.7 (50.9–52.6) −5.0 (−2.8 to −7.2)

    Women 6943 44.2 (41.9–46.4) 47.0 (45.1–48.9) 46.7 (45.2–48.3) 44.4 (43.2–45.5) −5.1 (−1.0 to −9.1)

  Hospital 8089 50.2 (48.7–51.7) 52.0 (50.5–53.4) 52.2 (50.8–53.6) 50.1 (48.8–51.4) −4.0 (−0.4 to −7.6)

    Nonhospital 25 536 54.4 (53.5–55.3) 53.6 (52.7–54.5) 52.8 (51.9–53.7) 49.4 (48.5–50.3) −6.4 (−4.1 to −8.7)

    Self-employed 12 539 54.3 (53.1–55.4) 52.8 (51.4–54.1) 54.2 (53.0–55.4) 50.9 (49.6–52.2) −6.0 (−2.9 to −9.2)

    Non–self-employed 21 086 53.1 (52.1–54.1) 53.5 (52.6–54.4) 51.5 (50.5–52.4) 49.0 (48.2–49.9) −4.7 (−2.3 to −7.1)

Nonphysicians
  Lawyers 56 608 45.2 (44.7–45.6) 46.3 (45.9–46.7) 45.9 (45.5–46.4) 44.9 (44.5–45.3) −2.4 (−1.0 to −3.6)

  Engineers 114 276 42.5 (42.3–42.6) 42.9 (42.7–43.1) 43.6 (43.4–43.8) 43.0 (42.8–43.2) −1.4 (−0.7 to −2.1)

  Registered nurses 129 545 35.6 (35.3–35.9) 36.4 (36.2–36.7) 36.7 (36.4–36.9) 37.3 (37.1–37.5) 1.6 (0.7 to 2.6)

Abbreviation: CI, confidence interval.

a

Data were derived from the Current Population Survey data based on hours worked in the previous week. Data represent 3-year averages as indicated and are weighted using sampling weights.

b

For the 12 years shown.

c

Resident physicians are defined as physicians younger than 35 years and working in a hospital. Nonresident physicians are all others.