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Table 2 Post-matched health outcome differences for schizophrenia caregivers vs. non-caregiver controls

From: Assessing health status in informal schizophrenia caregivers compared with health status in non-caregivers and caregivers of other conditions

  Total Non-caregiver Schizophrenia caregiver for adult relative P-value
(N = 1,194) (N = 796) (N = 398)
PHQ-9 scalea     <0.001
 Minimal (%) 386 (32.33 %) 307 (38.57 %) 79 (19.85 %)  
 Mild (%) 221 (18.51 %) 137 (17.21 %) 84 (21.11 %)  
 Moderate (%) 106 (8.88 %) 59 (7.41 %) 47 (11.81 %)  
 Moderately Severe (%) 56 (4.69 %) 30 (3.77 %) 26 (6.53 %)  
 Severe (%) 39 (3.27 %) 13 (1.63 %) 26 (6.53 %)  
Currently using a prescription medication for depression (%) 135 (11.31 %) 65 (8.17 %) 70 (17.59 %) <0.001
Comorbidities experienced in the past 12 months     
 Narcolepsy (%) 10 (0.84 %) 4 (0.50 %) 6 (1.51 %) 0.072
 Insomnia (%) 276 (23.12 %) 147 (18.47 %) 129 (32.41 %) <0.001
 Sleep difficulties (%) 397 (33.25 %) 227 (28.52 %) 170 (42.71 %) <0.001
 Pain (%) 400 (33.50 %) 242 (30.40 %) 158 (39.70 %) 0.001
 Anxiety (%) 339 (28.39 %) 188 (23.62 %) 151 (37.94 %) <0.001
 Depression (%) 271 (22.70 %) 154 (19.35 %) 117 (29.40 %) <0.001
 Heartburn (%) 308 (25.80 %) 182 (22.86 %) 126 (31.66 %) 0.001
 Migraines (%) 284 (23.79 %) 178 (22.36 %) 106 (26.63 %) 0.102
 Headaches (%) 525 (43.97 %) 334 (41.96 %) 191 (47.99 %) 0.048
Mental component summary     <0.001
 Mean ± SD 44.01 ± 11.15 45.88 ± 10.87 40.25 ± 10.75  
Physical component summary     <0.001
 Mean ± SD 48.23 ± 9.98 48.96 ± 9.79 46.77 ± 10.20  
Health utility     <0.001
 Mean ± SD 0.69 ± 0.13 0.71 ± 0.13 0.64 ± 0.12  
  1. aOnly available for 2011 and 2013 NHWS respondents (546 non-caregivers, 262 schizophrenia caregivers); Patient Health Questionnaire-9 = PHQ-9