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Table 10 Comparison of work productivity and activity impairment questionnaire at baseline between dry eye disease and control populations (all enrolled population)

From: Study design and baseline findings from the progression of ocular findings (PROOF) natural history study of dry eye

Question

All cases (n = 217)

All controls (n = 67)

P-value

Currently employed, n (%)

 Yes

100 (46.76%)

40 (59.70%)

0.0699

 No

114 (53.27%)

27 (40.30%)

 

Hours missed work due to health

 N

106

42

 

 Mean (SD)

0.48 (2.846)

0.19 (1.234)

0.5248

 Min–Max

0–25

0–8

 

Hours missed work due to other reasons

 N

106

42

 

 Mean (SD)

2.02 (5.174)

2.30 (6.098)

0.7776

 Min–Max

0–40

0–30

 

Hours actually worked

 N

109

42

 

 Mean (SD)

30.87 (16.202)

31.04 (17.603)

0.9554

 Min–Max

0–62

0–60

 

Productivity affected by health problems

 N

108

42

 

 Mean (SD)

1.63 (2.538)

0.17 (0.660)

0.0003

 Min–Max

0–10

0–3

 

Regular activities affected by health problems

 N

200

66

 

 Mean (SD)

1.83 (2.280)

0.59 (1.617)

<0.0001

 Min–Max

0–10

0–9

 
  1. Health problem productivity was evaluated by the patient using an 11-point scale where 0 = no effect and 10 = completely prevented me from working. Health problem activities were evaluated by the patient using an 11 point scale where 0 = no effect and 10 = completely prevented me from doing my daily activities
  2. P-values for continuous endpoints taken from two sample t-tests
  3. P-values from categorical endpoints taken from chi-squared test