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. 2018 Dec 6;8(12):e023369. doi: 10.1136/bmjopen-2018-023369

Table 1.

Participants with blood pressure measured in 2010 survey, those with hypertension* and stratified by whether or not previously diagnosed or on treatment

All participants N with hypertension* Previously diagnosed† Not previously diagnosed‡
n=11 694 n=3074 (26.3%) n=1368 (44.5%) n=1706 (55.5%)
Median (IQR) age (years) 34 (21‒53) 55 (43‒68) 60 (51‒71) 49 (35‒63)
Age group P<0.001§
 <30 5107 (43.7%) 354 (11.5%) 21 (1.5 %) 333 (19.5%)
 35–44 2191 (18.7%) 484 (15.7%) 118 (8.6 %) 366 (21.5%)
 45–59 2265 (19.4%) 992 (32.3%) 507 (37.1%) 485 (28.4%)
 60+ 2131 (18.2%) 1244 (40.5%) 722 (52.8%) 522 (30.6%)
Sex P<0.001
 Male 3453 (29.5%) 720 (23.4%) 178 (13.0%) 542 (31.8%)
 Female 8241 (70.5%) 2354 (76.6%) 1190 (87.0%) 1164 (68.2%)
Education P<0.001
 None 2389 (20.5%) 1032 (33.6%) 550 (40.2%) 482 (28.3%)
 Less than complete secondary 6244 (53.5%) 1463 (47.6%) 662 (48.4%) 801 (47.0%)
 Complete secondary/above 3040 (26.0%) 576 (18.8%) 155 (11.3%) 421 (24.7%)
Missing 21 3 1 2
Marital status P<0.001
 Single (never married) 3462 (29.8%) 518 (16.9%) 174 (12.7%) 344 (20.2%)
 Married/informal union 6556 (56.3%) 1696 (55.2%) 688 (50.3%) 1008 (59.2%)
 Widowed/separated/divorced 1618 (13.9%) 857 (27.9%) 506 (37.0%) 351 (20.6%)
Missing 58 3 0 3
Employed P<0.001
 Yes 1779 (15.3%) 437 (14.2%) 140 (10.2%) 297 (17.4%)
 No 9828 (84.7%) 2634 (85.8%) 1228 (89.8%) 1406 (82.6%)
Missing 87 3 0 3
Residence P<0.001
 Urban 617 (5.3 %) 119 (3.9 %) 55 (4.0 %) 64 (3.8 %)
 Periurban 3604 (30.8%) 904 (29.4%) 347 (25.4%) 557 (32.7%)
 Rural 7464 (63.9%) 2050 (66.7%) 966 (70.6%) 1084 (63.6%)
Missing 9 1 0 1
SES tertile P=0.67
 Low 4193 (36.4%) 1173 (38.6%) 525 (38.7%) 648 (38.5%)
 Middle 3818 (33.1%) 947 (31.2%) 412 (30.4%) 535 (31.8%)
 High 3522 (30.5%) 918 (30.2%) 418 (30.8%) 500 (29.7%)
Missing 161 36 13 23
Self-report of diabetes¶ P<0.001
 No 11 300 (96.6%) 2867 (93.3%) 1176 (86.0%) 1691 (99.1%)
 Yes 394 (3.4 %) 207 (6.7 %) 192 (14.0%) 15 (0.9 %)
Nearest clinic (km)** P=0.84
 0-<1.5 2642 (22.6%) 676 (22.0%) 292 (21.3%) 384 (22.5%)
 1.5–2.5 2879 (24.6%) 710 (23.1%) 314 (23.0%) 396 (23.2%)
 >2.5–3.9 2975 (25.5%) 809 (26.3%) 368 (26.9%) 441 (25.9%)
 >3.9 3189 (27.3%) 878 (28.6%) 394 (28.8%) 484 (28.4%)
Missing 9 1 0 1

Italic values are for missing data, which are typically highlighted as separate (and not analyzed) data.

*Hypertension defined as systolic BP ≥140 mm Hg or diastolic BP ≥90 mm Hg, in an average of two readings.

†Report having been previously diagnosed or on treatment for hypertension in 2010 survey.

‡Report no previous diagnosis or treatment for hypertension in 2010 survey.

§P value from χ2 test comparing characteristics of those previously diagnosed/treatment and those with no previous diagnosis/treatment.

¶Report having been diagnosed with or on treatment for diabetes in 2010 survey.

**Quartiles based on distribution in all individuals who were eligible for 2010 survey.

BP, blood pressure; SES, socioeconomic status.