(A) Quality of life scores in individuals with and without constipation. (A) Quality of life scores in individuals with and without constipation. (B) Quality of life scores in individuals with and without diarrhea. (C) Quality of life scores in individuals with and without alternating bowel habit. (D) Quality of life scores in individuals with and without abdominal pain. BP, bodily pain; DM, diabetes mellitus; GH, general health perceptions; HC, healthy control; MCS, mental health composite score; MH, mental health; PCS, physical composite score; PF, physical functioning; RE, role limitations due to emotional problems; RP, role limitations due to physical health; SF, social functioning; VT, vitality. John S Leeds et al. BMJ Open Diab Res Care 2018;6:e000514 ©2018 by American Diabetes Association