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Table 1 Characteristics of the participants by physical and mental component summary score quintiles of the SF-12

From: Association between physical and mental health-related quality of life and adverse outcomes; a retrospective cohort study of 5,272 Scottish adults

 

Physical component quintile (score)

Mental component quintile (score)

 

1 (<42)

2 (42–50.9)

3 (51–54.9)

4 (55–56)

5 (>56)

 

1 (<47)

2 (47–52.9)

3 (53–55.9)

4 (56–58)

5 (>58)

 
 

N = 1,055

N = 1,054

N = 1,057

N = 1,068

N = 1,038

 

N = 1,055

N = 1,054

N = 1,057

N = 1,068

N = 1,038

 
 

N (%)

N (%)

N (%)

N (%)

N (%)

P value

N (%)

N (%)

N (%)

N (%)

N (%)

P value

Body Mass Index

            

Underweight

24 (2.3)

4 (0.38)

9 (0.85)

11 (1.0)

11 (1.1)

<0.001

21 (2.0)

4 (0.4)

15 (1.4)

11 (1.0)

8 (0.8)

0.045

Normal-weight

251 (23.8)

287 (27.2)

330 (31.2)

358 (33.5)

463 (44.6)

 

338 (31.7)

365 (34.0)

379 (36.0)

358 (32.6)

249 (25.4)

 

Overweight

369 (35.0)

416 (39.5)

445 (42.1)

496 (46.4)

426 (41.0)

 

391 (36.7)

435 (40.5)

441 (41.9)

484 (44.0)

401 (40.9)

 

Obese

411 (39.0)

347 (32.9)

273 (25.8)

203 (19.0)

138 (13.3)

 

315 (29.6)

271 (25.2)

217 (20.6)

247 (22.5)

322 (32.9)

 

Class I

261 (24.7)

222 (21.1)

202 (19.1)

148 (13.9)

107 (10.3)

 

184 (17.3)

190 (17.7)

162 (15.4)

171 (15.6)

233 (23.8)

 

Class II

95 (9.0)

95 (9.0)

48 (4.5)

34 (3.2)

25 (2.4)

 

81 (7.6)

54 (5.0)

39 (3.7)

56 (5.1)

67 (6.8)

 

Class III

55 (5.2)

30 (2.9)

23 (2.2)

21 (2.0)

6 (0.6)

 

50 (4.7)

27 (2.5)

16 (1.5)

20 (1.8)

22 (2.2)

 

Sex

            

Men

463 (43.9)

476 (45.2)

508 (48.1)

508 (47.6)

428 (41.2)

<0.001

419 (39.3)

448 (41.7)

488 (46.4)

532 (48.4)

496 (50.6)

<0.001

Women

592 (56.1)

578 (54.8)

549 (51.9)

560 (52.4)

610 (58.8)

 

646 (60.7)

627 (58.3)

564 (53.6)

568 (51.6)

484 (49.4)

 

Age (years)

            

20-44

201 (19.1)

404 (38.3)

507 (48.0)

527 (49.3)

573 ( 55.2)

<0.001

473 (44.4)

508 (47.3)

518 (49.2)

484 (44.0)

229 (23.4)

<0.001

45-64

419 (39.7)

400 (38.0)

395 (37.4)

403 (37.7)

389 (37.5)

 

409 (38.4)

422 (39.3)

386 (36.7)

416 (37.8)

373 (38.1)

 

≥65

435 (41.2)

250 (23.7)

155 (14.7)

138 (12.9)

76 (7.3)

 

183 (17.2)

145 (13.5)

148 (14.1)

200 (18.2)

378 (38.6)

 

SIMD

            

1 (most deprived)

267 (25.3)

197 (18.7)

153 (14.5)

157 (14.5)

105 (10.1)

<0.001

246 (23.1)

182 (16.9)

154 (14.6)

145 (13.2)

152 (15.5)

<0.001

2

247 (23.4)

197 (18.7)

204 (19.3)

179 (16.8)

168 (16.8)

 

233 (21.9)

187 (17.4)

182 (17.3)

196 (17.8)

197 (20.1)

 

3

238 (22.6)

254 (24.1)

257 (24.3)

220 (20.6)

253 (24.4)

 

253 (23.8)

235 (21.7)

234 (22.2)

253 (23.0)

247 (25.2)

 

4

189 (17.9)

209 (19.8)

230 (21.8)

248 (23.2)

252 (24.3)

 

198 (18.6)

240 (22.3)

234 (22.2)

223 (20.3)

233 (23.8)

 

5 (least deprived)

114 (10.8)

197 (18.7)

213 (20.2)

264 (24.7)

260 (25.1)

 

135 (12.7)

231 (21.5)

248 (23.6)

283 (25.7)

151 (15.4)

 

Education a

            

Level 1

139 (13.2)

168 (15.9)

170 (16.1)

187 (17.5)

169 (16.3)

<0.001

170 (15.7)

185 (17.2)

175 (16.6)

166 (15.1)

137 (14.0)

0.015

Level 2

143 (13.6)

163 (15.5)

193 (18.3)

198 (18.5)

200 (19.3)

 

167 (15.7)

175 (16.3)

211 (20.1)

209 (19.0)

135 (13. 8)

 

Level 2

32 (3.0)

77 (7.31)

78 (7.4)

92 (8.6)

93 (9.0)

 

167 (7.8)

175 (6.1)

211 (7.5)

209 (8.3)

135 (5.5)

 

Level 4

151 (14.3)

210 (19.9)

290 (27.4)

314 (29.4)

400 (38.5)

 

224 (21.0)

321 (29.9)

326 (31.0)

289 (26.3)

205 (20.9)

 

None of these

590 (55.9)

436 (41.4)

326 (30.8)

277 (25.9)

176 (17.0)

 

421 (39.5)

329 (30.6)

261 (24.8)

345 (31.4)

449 (45.8)

 

Smoking status

            

Never

361 (34.2)

441 (41.9)

447 (42.3)

526 (49.3)

541 (52.1)

<0.001

390 (36.6)

465 (43.3)

490 (46.6)

536 (48.7)

435 (44.4)

<0.001

Previous

387 (36.7)

317 (30.1)

296 (28.0)

306 (28.7)

258 (24.9)

 

268 (25.2)

311 (28.9)

318 (30.2)

319 (29.0)

348 (35.5)

 

Current

307 (29.1)

296 (28.1)

314 (29.7)

236 (22.1)

239 (23.0)

 

407 (38.2)

299 (27.8)

244 (23.2)

245 (22.3)

197 (20.1)

 

Alcohol consumption

            

Never

92 (8.7)

53 (5.03)

36 (3.4)

39 (3.7)

32 (3.1)

<0.001

53 (5.0)

41 (3.8)

34 (3.2)

42 (3.8)

82 (8.4)

0.016

Previous

99 (9.4)

39 (3.7)

36 (3.4)

26 (2.4)

25 (2.4)

 

75 (7.0)

39 (3.6)

35 (3.3)

37 (3.4)

39 (4.0)

 

Within limit

704 (66.7)

739 (70.1)

733 (69.4)

802 (75.1)

721 (69.5)

 

687 (64.5)

774 (72.0)

748 (71.1)

812 (73.8)

678 (69.2)

 

Excessive

160 (15.2)

223 (21.2)

252 (23.8)

201 (18.8)

260 (25.1)

 

250 (23.5)

221 (20.6)

235 (22.3)

209 (19.0)

181 (18.5)

 

Medical comorbidity

            

No

576 (54.6)

725 (68.8)

829 (78.4)

886 (83.0)

940 (90.6)

<0.001

734 (68.9)

836 (77.8)

859 (81.7)

879 (79.9)

648 (66.1)

<0.001

Yes

479 (45.4)

329 (31.2)

228 (21.6)

182 (17.0)

98 (9.4)

 

331 (31.1)

239 (22.2)

193 (18.4)

221 (20.1)

332 (33.9)

 
  1. P values were determined by χ2 test; SIMD, Scottish index of multiple deprivations; a1 (Lower than O level Grade C), 2 (O level or equivalent), 3 (A level/other below degree), 4 (Degree level or above).
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