Table 1

Characteristics of Chinese office workers stratified by the presence of neck pain or low back pain 

VariablesTotal
n=417
Northwick Park QuestionnaireThe Oswestry Disability Index
Low
n=149
Medium
n=137
High
n=131
p Value* Low
n=162
Medium
n=121
High
n=134
p Value*
Individual variables
Gender (n, %)
Male163 (39.1)74 (49.7)53 (38.7)36 (27.5)0.00174 (45.7)45 (37.2)44 (32.8)0.069
Female254 (60.9)75 (50.3)84 (61.3)95 (72.5)88 (54.3)76 (62.8)90 (67.2)
Age (years)29.1 (6.8)29.1 (7.1)28.3 (7.1)30.0 (6.0)0.11928.8 (7.4)28.3 (5.2)30.2 (7.3)0.062
Height (cm)165.9 (11.1)166.7 (15.8)166.2 (6.8)164.6 (7.7)0.289165.9 (15.1)166.2 (7.5)165.6 (7.6)0.907
Weight (kg)58.0 (12.4)59.3 (13.4)57.7 (11.2)56.8 (12.3)0.23657.9 (13.3)58.4 (11.4)57.9 (12.2)0.938
BMI (kg/m2)20.9 (3.4)21.1 (3.3)20.8 (3.3)20.8 (3.5)0.76620.8 (3.7)21.0 (2.9)21.0 (3.4)0.841
Education (n, %)
College or less117 (28.1)35 (23.5)37 (27.0)45 (34.4)0.12338 (23.5)34 (28.1)45 (33.6)0.155
Bachelor or more300 (71.9)114 (76.5)101 (73.0)87 (65.7)124 (76.5)87 (71.9)89 (66.4)
Marriage (n, %)
Married or other235 (56.4)67 (45.0)70 (51.1)45 (34.4)0.02083 (51.2)53 (43.8)46 (34.3)0.014
Unmarried182 (43.7)82 (55.0)67 (48.9)86 (65.7)79 (48.8)68 (56.2)88 (65.7)
Neck injury (n, %)14 (3.4)1 (0.7)5 (3.7)8 (6.1)0.028----
Low back injury (n, %) -----6 (3.7)11 (9.1)20 (14.9)0.003
Work related variables
Work years (n, %)
<5 years204 (48.9)80 (53.7)70 (51.1)54 (41.2)0.09488 (54.3)60 (49.6)56 (41.8)0.098
≥5 years213 (51.1)69 (46.3)67 (48.9)77 (58.8)74 (45.7)61 (50.4)78 (58.2)
Office temperature (n, %)
Cold52 (12.5)12 (8.1)16 (11.7)24 (18.3) 0.0339 (5.6)16 (13.2)27 (20.2)0.001
Median or hot365 (87.5)137 (92.0)121 (88.3)107 (81.7)153 (94.4)105 (86.8)107 (79.9)
Location of computer displayer (n, %)
In front265 (63.6)105 (70.5)86 (62.8)74 (56.5)0.051113 (69.8)81 (66.9)71 (53.0)0.008
Not in front152 (36.5)44 (29.5)52 (37.2)57 (43.5)49 (30.3)40 (33.1)63 (47.0)
Computer-using time (n, %)
<8 hours203 (48.7)80 (53.7)62 (45.3)61 (46.6)0.30586 (53.1)55 (45.5)62 (46.3)0.354
≥8 hours214 (51.3)69 (46.3)75 (54.7)70 (53.4)76 (46.9)66 (54.6)72 (53.7)
  • *Pearson χ2 test for categorical variables, ANOVA for continuous variables, or Fisher’s exact test for categorical variables if the number of cells was <5.

  • ANOVA, analysis of variance; BMI, body mass index.