Table 3. Differences in burnout, psychological wellbeing scores, and musculoskeletal complaints between hours of work per day and number of days worked per week
Hours worked per dayaDays worked per weeka
Category ≤9 hours(n = 197)>9 hours(n = 188) P value≤3 days(n = 180)>3 days(n = 226) P value
Burnout, mean (SD)b 2.26 (0.85)2.43 (0.79)0.0542.26 (0.79)2.39 (0.84)0.090
Psychological wellbeing, mean (SD)b 22.83 (3.12)22.58 (3.23)0.45822.68 (3.55)22.65 (3.02)0.940
MSK, n (%)c NSB pain164 (42.6)152 (39.5)148 (36.5)184 (45.3)
No NSB pain33 (8.6)36 (9.4)0.54032 (7.9)42 (10.3)0.834
Arm pain62 (16.1)43 (11.2)50 (12.3)65 (16.0)
No arm pain135 (35.1)145 (37.7)0.058130 (32.0)161 (39.7)0.827
Leg pain94 (24.4)93 (24.2)97 (23.9)105 (25.9)
No leg pain103 (26.8)95 (24.7)0.73183 (20.4)121 (29.8)0.137
  • aPercentages are calculated from: hours worked per day, n = 385; and days worked per week, n = 406. bBurnout and psychological wellbeing display means and standard deviations (SDs) following an independent t-test. cMSK variables report frequencies and percentages following χ2 tests. MSK = musculoskeletal. NSB = neck, shoulder, and back.