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Table 3 Factors associated with non- and partial responses

From: Non response, incomplete and inconsistent responses to self-administered health-related quality of life measures in the general population: patterns, determinants and impact on the validity of estimates — a population-based study in France using the MOS SF-36

A   NON RESPONDERS PARTIAL RESPONDERS
  Complete and consistent (Reference) Absent at the 2-month visit Incapable of responding Not willing to fill-in > 2 missing physical and role items > 2 missing mental items > 2 missing physical and role items and > 2 missing mental items Complete questionnaires with > 2 inconsistencies Other (slightly) incomplete and inconsistent questionnaire
   OR (95% CI) OR (95% CI) OR (95% CI) OR (95% CI) OR (95% CI) OR (95% CI) OR (95% CI) OR (95% CI)
Age          
18-24 1.3 (1.1-1.6) 0.3 (0.1-1.2) 0.9 (0.7-1.1) 1.1 (0.5-2.5) 0.7 (0.4-1.2) 0.5 (0.2-1.1) 1.4 (0.9-2.2) 0.9 (0.7-1.1)
25-39   1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
40-49   1.0 (0.9-1.2) 1.8 (0.9-3.7) 1.0 (0.8-1.2) 1.8 (1.0-3.3) 1.3 (0.9-1.9) 1.5 (0.9-2.7) 1.4 (1.0-2.0) 1.0 (0.9-1.2)
50-59   1.2 (1.0-1.4) 1.4 (0.6-3.1) 1.2 (1.0-1.5) 3.5 (1.9-6.5) 2.4 (1.7-3.5) 2.0 (1.1-3.5) 1.1 (0.7-1.6) 1.4 (1.2-1.6)
60-64   1.2 (0.9-1.6) 3.9 (1.7-9.0) 0.9 (0.6-1.2) 4.1 (1.8-9.2) 1.7 (1.0-3.1) 3.7 (1.8-7.6) 1.6 (0.9-3.0) 1.5 (1.2-2.0)
65-69   1.4 (1.0-1.8) 1.4 (0.5-4.0) 1.2 (0.9-1.7) 4.3 (1.9-9.7) 2.8 (1.6-4.9) 4.9 (2.4-9.8) 0.9 (0.4-1.9) 1.9 (1.5-2.5)
70-74   1.9 (1.4-2.6) 3.9 (1.6-10.0) 1.9 (1.3-2.6) 6.4 (2.8-14.5) 1.8 (0.9-3.4) 8.2 (4.1-16.4) 2.0 (1.0-3.9) 2.1 (1.6-2.8)
75-79   1.9 (1.3-2.6) 4.6 (1.7-12.5) 2.7 (1.9-3.9) 8.2 (3.4-19.7) 3.5 (1.9-6.7) 16.4 (8.1-33.2) 0.2 (0.0-1.4) 2.5 (1.8-3.5)
80-84   2.2 (1.5-3.3) 6.6 (2.3-18.7) 2.4 (1.6-3.7) 7.4 (2.7-19.8) 3.7 (1.8-7.6) 15.1 (7.1-32) 0.8 (0.2-2.9) 2.1 (1.5-3.1)
≥85   4.0 (2.3-6.8) 17.3 (5.5-53.9) 6.6 (3.8-11.3) 7.2 (1.8-29.3) 3.1 (1.0-9.9) 15.2 (5.8-40.1) 3.4 (1.0-11.1) 3.0 (1.7-5.3)
Region of residence          
West   1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
Paris region   1.4 (1.1-1.6) 0.9 (0.4-2.0) 2.5 (2.0-3.2) 1.2 (0.7-2.3) 1.0 (0.7-1.5) 1.0 (0.7-1.6) 1.4 (0.9-2.3) 1.1 (0.9-1.3)
Eastern Parisian Basin   0.8 (0.6-1.0) 1.1 (0.8-1.4) 0.8 (0.6-1.0) 1.1 (0.6-2.1) 0.8 (0.6-1.2) 0.8 (0.5-1.2) 1.2 (0.7-2.0) 1.0 (0.9-1.2)
Western Parisian Basin   1.1 (0.8-1.4) 0.5 (0.2-1.7) 1.0 (0.7-1.5) 1.0 (0.5-2.2) 0.9 (0.5-1.5) 0.7 (0.4-1.3) 1.0 (0.5-1.9) 1.0 (0.8-1.2)
East   0.9 (0.7-1.1) 2.1 (0.9-4.9) 1.5 (1.1-2.0) 1.0 (0.4-2.1) 0.8 (0.5-1.4) 0.7 (0.4-1.2) 1.7 (1.0-2.9) 0.9 (0.7-1.1)
Mediterranean Basin   2.2 (1.8-2.7) 0.9 (0.4-2.2) 2.7 (2.0-3.5) 1.8 (1.0-3.3) 0.8 (0.5-1.3) 0.9 (0.5-1.4) 1.0 (0.6-1.8) 1.2 (1.0-1.4)
North   1.2 (0.9-1.4) 0.8 (0.3-2.1) 1.4 (1.0-1.8) 1.0 (0.5-2.1) 0.9 (0.6-1.4) 0.9 (0.5-1.5) 1.4 (0.8-2.4) 1.2 (1.0-1.4)
South-East   0.9 (0.7-1.2) 0.7 (0.3-1.9) 1.3 (1.0-1.8) 1.5 (0.8-3.0) 1.0 (0.6-1.5) 0.6 (0.3-1.0) 0.9 (0.5-1.6) 0.9 (0.7-1.1)
South-West   1.1 (0.9-1.4) 1.6 (0.7-3.8) 2.3 (1.7-3.0) 1.1 (0.5-2.2) 1.2 (0.8-1.8) 0.8 (0.5-1.4) 1.3 (0.7-2.2) 0.9 (0.7-1.1)
Education          
Upper tertiary level   1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
No diploma   2.3 (1.9-2.9) 64.6 (8.7-481.0) 3.3 (2.4-4.4) 1.7 (0.8-3.9) 1.9 (1.1-3.4) 15.5 (4.6-52.5) 3.0 (1.7-5.5) 1.9 (1.5-2.4)
Primary school   1.9 (1.5-2.3) 30.2 (4.1-224.2) 3.2 (2.4-4.2) 2.0 (1.1-3.7) 1.9 (1.2-3.1) 17.3 (5.4-55.2) 2.0 (1.1-3.6) 1.7 (1.4-2.1)
Lower secondary level   1.1 (0.8-1.4) 8.8 (1.0-81.3) 1.8 (1.3-2.5) 1.2 (0.5-2.8) 1.2 (0.7-2.2) 5.4 (1.4-20.4) 1.7 (0.9-3.2) 1.2 (0.9-1.5)
Intermediate Secondary level   1.4 (1.1-1.7) 4.6 (0.6-37.1) 1.7 (1.3-2.2) 1.2 (0.7-2.3) 1.6 (1.0-2.5) 7.8 (2.4-25.2) 1.6 (1.0-2.8) 1.4 (1.2-1.7)
Upper Secondary level   1.2 (0.9-1.5) 5.9 (0.7-51.8) 1.7 (1.2-2.3) 0.9 (0.4-2.0) 1.0 (0.6-1.8) 4.8 (1.3-16.8) 1.2 (0.7-2.4) 1.2 (1.0-1.6)
Lower tertiary level   1.0 (0.8-1.2) 0.9 (0.1-13.8) 1.2 (0.9-1.6) 0.7 (0.3-1.5) 0.9 (0.5-1.5) 3.4 (0.9-11.9) 1.0 (0.6-1.8) 1.0 (0.8-1.2)
Marital status          
Married/in couple   1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
Single   1.4 (1.3-1.7) 3.1 (1.8-5.3) 1.6 (1.3-1.8) 1.6 (1.0-2.5) 1.0 (0.7-1.6) 1.5 (0.9-2.4) 1.3 (0.8-2.2) 1.2 (1.0-1.5)
Divorced/separated   1.1 (0.8-1.3) 3.3 (1.7-6.3) 1.4 (1.1-1.8) 0.9 (0.4-1.7) 1.3 (0.9-1.7) 1.8 (1.2-2.7) 1.1 (0.8-1.6) 1.1 (1.0-1.3)
Widowed   1.0 (0.8-1.4) 2.1 (1.1-4.2) 0.8 (0.6-1.2) 0.9 (0.5-1.9) 0.9 (0.5-1.6) 1.0 (0.6-1.5) 1.2 (0.5-2.5) 1.0 (0.8-1.3)
Geographic Origin          
Metropolitan France   1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
Foreign background   1.8 (1.6-2.1) 13.6 (8.8-21.0) 1.9 (1.6-2.2) 1.0 (0.6-1.7) 1.0 (0.7-1.4) 1.7 (1.2-2.5) 1.5 (1.1 -2.2) 1.5 (1.3-1.7)
Occupation (active)          
Yes   1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
No   1.2 (1.0-1.3) 1.8 (1.0-3.1) 1.2 (1.0-1.4) 1.3 (0.8-2.1) 1.4 (1.0-2.0) 1.5 (0.9-2.3) 1.3 (0.9-1.9) 1.1 (0.9-1.2)
Elixhauser score (per point of score)   0.8 (0.7-0.9) 1.9 (1.3-2.6) 1.1 (1.0-1.3) 1.1 (0.8-1.5) 1.0 (0.7-1.3) 1.2 (1.0-1.5) 0.7 (0.4-1.0) 1.2 (1.0-1.3)
(Un)complicated Hypertension          
No   1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
Yes   0.6 (0.4-0.7) 0.3 (0.1-0.5) 0.7 (0.6-0.9) 0.7 (0.4-1.3) 0.9 (0.6-1.4) 0.4 (0.3-0.6) 1.4 (0.8-2.6) 0.7 (0.5-0.8)
Chronic pulmonary and pulm. circulation disorders          
No   1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
Yes   0.6 (0.5-0.8) 0.4 (0.2-0.8) 0.8 (0.6-1.1) 0.7 (0.4-1.5) 0.6 (0.4-1.1) 0.9 (0.6-1.5) 1.8 (1.0-3.3) 0.9 (0.7-1.1)
Anxiety disorders          
No   1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
Yes   0.4 (0.2-1.0) 7.1 (2.3-22.3) 0.5 (0.2-1.3) 0.7 (0.1-5.4) 0.7 (0.2-2.9) 1.8 (0.6-5.2) <0.001 1.0 (0.6-1.8)
Migraine          
No   1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
Yes   0.4 (0.3-0.6) 0.8 (0.3-2.1) 0.4 (0.3-0.7) 0.2 (0.0-1.5) 1.4 (0.8-2.4) 1.2 (0.6-2.4) 0.9 (0.4-1.8) 1.0 (0.8-1.3)
Bilateral blindness          
No   1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
Yes   0.7 (0.3-1.5) 14.8 (7.1-32.9) 1.8 (1.0-3.2) 0.6 (0.1-4.5) 1.4 (0.5-4.1) 2.8 (1.3-5.9) 0.7 (0.1-5.0) 1.4 (0.8-2.5)
B   NON RESPONDERS PARTIAL RESPONDERS
  Complete and consistent (Reference) Absent at the 2-month visit Incapable of responding Not willing to fill-in > 2 missing physical and role items > 2 missing mental items > 2 missing physical and role items and > 2 missing mental items Complete questionnaires with > 2 inconsistencies Other (slightly) incomplete and inconsistent questionnaire
   OR (95% CI) OR (95% CI) OR (95% CI) OR (95% CI) OR (95% CI) OR (95% CI) OR (95% CI) OR (95% CI)
Age          
18-24 1.2 (1.0-1.5) 0.2 (0.0-1.9) 0.8 (0.6-1.1) 0.8 (0.4-1.6) 0.7 (0.4-1.2) <0.001 1.6 (0.9-3) 0.8 (0.6-0.9)
25-39   1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
40-49   1.0 (0.8-1.2) 3.1 (1.5-6.8) 1.2 (0.9-1.4) 1.5 (0.9-2.6) 1.9 (1.4-2.7) 3.1 (1.7-5.5) 1.0 (0.6-1.7) 1.2 (1.0-1.4)
50-59   1.5 (1.2-1.8) 2.9 (1.2-7.1) 1.5 (1.2-2.0) 2.2 (1.2-3.9) 2.9 (2.0-4.3) 5.3 (2.9-9.6) 1.6 (0.9-2.7) 1.4 (1.2-1.7)
60-64   1.5 (1.1-2.0) 1.5 (0.5-4.4) 1.8 (1.3-2.4) 2.8 (1.4-5.6) 4.1 (2.6-6.6) 9.7 (5.1-18.4) 1.1 (0.5-2.3) 1.6 (1.3-2.0)
65-69   2.3 (1.7-3.0) 1.2 (0.4-3.7) 2.6 (1.9-3.5) 4.9 (2.5-9.7) 4.1 (2.5-6.9) 11.7 (6.1-22.4) 1.6 (0.8-3.3) 1.9 (1.5-2.4)
70-74   2.8 (2.1-3.8) 0.9 (0.3-3.0) 3.2 (2.3-4.3) 5.9 (3.0-11.7) 5.4 (3.2-9.1) 20.3 (10.8-38.4) 1.5 (0.7-3.2) 2.4 (1.9-3.1)
75-79   3.5 (2.5-4.9) 2.6 (0.9-7.5) 4.8 (3.4-6.6) 6.4 (3.1-13.4) 6.9 (4.0-11.9) 26.3 (13.7-50.5) 2.7 (1.3-5.7) 2.5 (1.9-3.3)
80-84   5.7 (3.9-8.3) 11.3 (4.2-30.0) 6.1 (4.1-9.0) 6.2 (2.5-15.0) 6.4 (3.2-12.6) 39.9 (20.1-79.3) 3.5 (1.5-8.2) 3.2 (2.3-4.5)
≥85   3.3 (2.0-5.3) 5.5 (1.8-16.9) 4.5 (2.8-7.2) 8.8 (3.5-22.2) 4.7 (2.0-11.1) 17.5 (7.7-39.5) 1.1 (0.2-4.9) 1.8 (1.2-2.8)
Education          
Upper tertiary level 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
No diploma   2.4 (1.7-3.4) 11.6 (1.5-89.6) 1.8 (1.2-2.6) 2.7 (1.0-7.5) 1.7 (0.9-3.1) 3.4 (1.2-10.0) 4.0 (1.3-12.0) 2.5 (1.9-3.4)
Primary school   1.6 (1.1-2.2) 4.7 (0.6-36.1) 1.8 (1.2-2.6) 2.2 (0.8-5.9) 1.5 (0.8-2.6) 3.3 (1.2-9.2) 3.6 (1.2-10.5) 2.4 (1.8-3.1)
Lower secondary level   1.1 (0.7-1.5) 0.6 (0.0-6.5) 0.9 (0.6-1.3) 1.3 (0.5-3.7) 1.1 (0.6-2.0) 1.7 (0.6-5.1) 2.0 (0.6-6.1) 1.6 (1.2-2.1)
Intermediate Secondary level   0.9 (0.6-1.2) 0.5 (0.1-4.7) 0.8 (0.6-1.2) 1.5 (0.6-3.8) 1.4 (0.8-2.4) 1.4 (0.5-4.1) 2.1 (0.7-6.1) 1.6 (1.3-2.1)
Upper Secondary level   1.1 (0.8-1.5) 0.5 (0.0-6.0) 1.0 (0.7-1.5) 0.9 (0.3-2.6) 0.9 (0.5-1.7) 2.1 (0.7-5.9) 1.5 (0.5-4.5) 1.5 (1.1-1.9)
Lower tertiary level   0.9 (0.7-1.3) 0.7 (0.1-7.0) 1.0 (0.7-1.4) 1.1 (0.4-3.0) 0.9 (0.5-1.5) 1.1 (0.4-3.2) 1.4 (0.5-4.2) 1.4 (1.1-1.8)
Marital status          
Married/in couple   1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
Single   1.4 (1.2-1.6) 1.1 (0.6-2.2) 1.1 (0.9-1.3) 1.3 (0.8-2.0) 1.1 (0.8-1.5) 1.6 (1.1-2.3) 0.8 (0.5-1.3) 1.1 (1.0-1.2)
Divorced/separated   1.6 (1.3-1.9) 1.0 (0.5-2.2) 1.5 (1.2-1.9) 1.2 (0.7-2.0) 1.7 (1.3-2.3) 1.2 (0.8-1.8) 1.1 (0.7-1.8) 1.2 (1.0-1.4)
Widowed   1.5 (1.3-1.9) 1.4 (0.8-2.4) 1.3 (1.1-1.6) 1.1 (0.7-1.7) 1.2 (0.9-1.7) 1.3 (1.0-1.7) 0.9 (0.6-1.6) 1.2 (1.0-1.4)
Occupation (active)         
Yes   1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
No   1.1 (1.0-1.3) 7.7 (3.6-16.6) 1.1 (0.9-1.3) 1.5 (1.0-2.2) 1.0 (0.8-1.3) 1.5 (1.1-2.2) 1.5 (1.1-2.2) 1.1 (1.0-1.2)
Income (10,000 €/year/household unit)   0.9 (0.8-0.9) 0.9 (0.7-1.1) 0.8 (0.8-0.9) 0.9 (0.8-1.1) 1.0 (0.9-1.1) 0.7 (0.6-0.9) 0.9 (0.8-1.1) 1.0 (1.0-1.0)
Elixhauser score (per point of score)   0.9 (0.8-1.0) 1.2 (0.8-1.6) 1.0 (0.8-1.1) 0.9 (0.7-1.2) 1.0 (0.9-1.3) 1.0 (0.8-1.2) 1.2 (1.0-1.6) 1.0 (0.9-1.1)
(Un)complicated Hypertension          
No   1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
Yes 0.7 (0.5-0.8) 1.0 (0.6-1.6) 0.9 (0.7-1.1) 1.2 (0.8-1.9) 0.7 (0.5-1.0) 1.1 (0.8-1.4) 0.9 (0.6-1.4) 1.0 (0.8-1.2)
Paralysis          
No   1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
Yes   2.7 (1.1-6.4) 7.0 (2.1-23.3) 1.0 (0.3-3.1) <0.001 3.0 (0.9-9.6) 1.5 (0.4-5.5) <0.001 1.2 (0.5-2.8)
Other neurological disorders          
No   1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
Yes   1.2 (0.6-2.2) 3.4 (1.2-9.4) 1.1 (0.6-2.2) 1.9 (0.6-6.5) 1.9 (0.8-4.4) 2.4 (10-5.4) 1.0 (0.2-4.1) 0.9 (0.5-1.5)
Diabetes          
No   1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
Yes   1.4 (1.0-1.9) 2.1 (1.1-4.0) 1.6 (1.2-2.2) 1.0 (0.5-2.0) 0.7 (0.4-1.3) 1.5 (1.0-2.2) 1.0 (0.5-2.1) 1.1 (0.8-1.4)
Migraine          
No   1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
Yes   0.6 (0.5-0.8) 0.8 (0.3-1.8) 0.6 (0.5-0.9) 1.0 (0.6-1.7) 0.8 (0.6-1.3) 1.1 (0.7-1.7) 0.9 (0.5-1.5) 1.0 (0.9-1.2)
Sleeping disorders          
No   1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
Yes   0.5 (0.4-0.8) 0.8 (0.3-2.0) 0.6 (0.4-0.9) 1.0 (0.5-2.0) 0.8 (0.5-1.5) 0.8 (0.5-1.3) 1.9 (1.1-3.4) 0.8 (0.6-1.0)
Visual deficiency          
No   1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
Yes   0.9 (0.8-1.1) 0.6 (0.4-1.0) 0.8 (0.7-1.0) 0.6 (0.4-1.0) 0.9 (0.7-1.2) 1.0 (0.7-1.4) 0.8 (0.5-1.1) 1.0 (0.9-1.1)
  1. Statistically significant odds ratios are in bold. Panel A: men, Panel B: women.